Diagnostic Trouble Code (DTC) List - Vehicle. Chevrolet TrailBlazer

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2005 🢒 TrailBlazer - 2WD 🢒 Engine 🢒 Engine Controls - 5.3L 🢒 Diagnostic Trouble Code (DTC) List - Vehicle

This master DTC list includes all applicable DTCs in alphanumeric order with descriptors.

DTC	DTC Descriptor	Module That Sets the DTC	Diagnostic Procedure
B0004	Vehicle Speed Information Circuit Open	Navigation Radio	DTC B0004 in Navigation Systems
B0012	Right Front/Passenger Frontal Deployment Loop (stage 2) Resistance Low	SDM	DTC B0012, B0013, B0014, B0016, B0017, or B0018 in SIR
B0013	Right Front/Passenger Frontal Deployment Loop (stage 2) Open	SDM	DTC B0012, B0013, B0014, B0016, B0017, or B0018 in SIR
B0014	Right Front/Passenger Frontal Deployment Loop (stage 2) Voltage Out of Range	SDM	DTC B0012, B0013, B0014, B0016, B0017, or B0018 in SIR
B0016	Right Front/Passenger Frontal Deployment Loop (single stage or stage 1) Resistance Low	SDM	DTC B0012, B0013, B0014, B0016, B0017, or B0018 in SIR
B0017	Right Front/Passenger Frontal Deployment Loop (single stage or stage 1) Open	SDM	DTC B0012, B0013, B0014, B0016, B0017, or B0018 in SIR
B0018	Right Front/Passenger Frontal Deployment Loop (single stage or stage 1) Voltage Out of Range	SDM	DTC B0012, B0013, B0014, B0016, B0017, or B0018 in SIR
B0022	Left Front/Driver Frontal Deployment Loop (single stage or Stage 1) Resistance Low	SDM	DTC B0022, B0024, B0026, B0042, B0043, or B0044 in SIR
B0024	Left Front/Driver Frontal Deployment Loop (single stage or Stage 1) Voltage Out of Range	SDM	DTC B0022, B0024, B0026, B0042, B0043, or B0044 in SIR
B0026	Left Front/Driver Frontal Deployment Loop (single stage or Stage 1) Open	SDM	DTC B0022, B0024, B0026, B0042, B0043, or B0044 in SIR
B0042	Left Front/Driver Frontal Deployment Loop Stage 2 Resistance Low	SDM	DTC B0022, B0024, B0026, B0042, B0043, or B0044 in SIR
B0043	Left Front/Driver Frontal Deployment Loop Stage 2 Voltage Out of Range	SDM	DTC B0022, B0024, B0026, B0042, B0043, or B0044 in SIR
B0044	Left Front/Driver Frontal Deployment Loop Stage 2 Open	SDM	DTC B0022, B0024, B0026, B0042, B0043, or B0044 in SIR
B0051	Deployment Commanded	SDM	DTC B0051 in SIR
B0053	Deployment Commanded With Loop DTCs Present	SDM	DTC B0053 in SIR
B0057	Right Front/Passenger Pretensioner Deployment Loop Resistance Low	SDM	DTC B0057, B0058, or B0059 in SIR
B0058	Right Front/Passenger Pretensioner Deployment Loop Open	SDM	DTC B0057, B0058, or B0059 in SIR
B0059	Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range	SDM	DTC B0057, B0058, or B0059 in SIR
B0061	Left Front/Driver Roof Rail Deployment Loop Resistance Low	SDM	DTC B0061, B0062, or B0068 in SIR
B0062	Left Front/Driver Roof Rail Deployment Loop Resistance Low	SDM	DTC B0061, B0062, or B0068 in SIR
B0064	Left Front/Driver Pretensioner Deployment Loop Resistance Low	SDM	DTC B0064, B0065, or B0066 in SIR
B0065	Left Front/Driver Pretensioner Deployment Loop Open	SDM	DTC B0064, B0065, or B0066 in SIR
B0066	Left Front/Driver Pretensioner Deployment Loop Voltage Out of Range	SDM	DTC B0064, B0065, or B0066 in SIR
B0068	Left Front/Driver Pretensioner Deployment Loop Voltage Out of Range	SDM	DTC B0061, B0062, or B0068 in SIR
B0069	Right Front/Passenger Roof Rail Deployment Loop Resistance Low	SDM	DTC B0069, B0070, or B0071 in SIR
B0070	Right Front/Passenger Roof Rail Deployment Loop Open	SDM	DTC B0069, B0070, or B0071 in SIR
B0071	Right Front/Passenger Roof Rail Deployment Loop Voltage Out of Range	SDM	DTC B0069, B0070, or B0071 in SIR
B0077	Left Front/Driver Side Impact Sensor (SIS) Performance	SDM	DTC B0077, B0078, B0079, B0080, B0081, or B0082 in SIR
B0078	Right Front/Passenger Side Impact Sensor (SIS) Performance	SDM	DTC B0077, B0078, B0079, B0080, B0081, or B0082 in SIR
B0079	Incorrect Left Front/Driver Side Impact Sensor (SIS) Installed	SDM	DTC B0077, B0078, B0079, B0080, B0081, or B0082 in SIR
B0080	Discard Left Front/Driver Side Impact Sensor (SIS)	SDM	DTC B0077, B0078, B0079, B0080, B0081, or B0082 in SIR
B0081	Incorrect Right Front/Passenger Side Impact Sensor (SIS) Installed	SDM	DTC B0077, B0078, B0079, B0080, B0081, or B0082 in SIR
B0082	Discard Right Front/Passenger Side Impact Sensor (SIS)	SDM	DTC B0077, B0078, B0079, B0080, B0081, or B0082 in SIR
B0083	Right Front/Passenger Seat Position Sensor Circuit	SDM	DTC B0083 or B0084 in SIR
B0084	Left Front/Driver Seat Position Sensor Circuit	SDM	DTC B0083 or B0084 in SIR
B0092	Passenger Presence System Performance	SDM	DTC B0092 in SIR
B0098	Passenger Presence System Configuration Error	SDM	DTC B0098 in SIR
B0100	Electronic Front End Sensor 1 Performance	SDM	DTC B0100, B0101, B0102, B0103, B0104, or B0105 in SIR
B0101	Discard Electronic Front End Sensor 1	SDM	DTC B0100, B0101, B0102, B0103, B0104, or B0105 in SIR
B0102	Incorrect Electronic Front End Sensor 1 Installed	SDM	DTC B0100, B0101, B0102, B0103, B0104, or B0105 in SIR
B0103	Electronic Front End Sensor 2 Performance	SDM	DTC B0100, B0101, B0102, B0103, B0104, or B0105 in SIR
B0104	Discard Electronic Front End Sensor 2	SDM	DTC B0100, B0101, B0102, B0103, B0104, or B0105 in SIR
B0105	Incorrect Electronic Front End Sensor 2 Installed	SDM	DTC B0100, B0101, B0102, B0103, B0104, or B0105 in SIR
B0145	Air Flow Position Command 3 Circuit	Auxiliary HVAC Control Module	DTC B0145, B0428, or B3531 in HVAC Systems - Automatic or DTC B0145, B0428, or B3531 in HVAC Systems - Manual
B0159	Outside Air Temperature Sensor Circuit Range/Performance	HVAC Control Module	DTC B0159 or B0164 in HVAC Systems - Automatic
B0164	Passenger Compartment Temp Sensor Circuit Range/Performance	HVAC Control Module	DTC B0159 or B0164 in HVAC Systems - Automatic
B0174	Output Air Temperature Sensor 1 Circuit Range/Performance	HVAC Control Module	DTC B0174, B0179, B0510, or B0515 in HVAC Systems - Automatic
B0179	Output Air Temperature Sensor 2 Circuit Range/Performance	HVAC Control Module	DTC B0174, B0179, B0510, or B0515 in HVAC Systems - Automatic
B0183	Solar Load Sensor Circuit	BCM	DTC B0183 or B0188 in HVAC Systems - Automatic
B0188	Solar Load Sensor 2 Circuit	BCM	DTC B0183 or B0188 in HVAC Systems - Automatic
B0229	Recirculate Position Feedback Circuit Range/Performance	HVAC Control Module	DTC B0229, B0414, B0424, B3761, or B3770 in HVAC Systems - Automatic
B0248	Air Flow Control 3 Circuit	HVAC Control Module	DTC B0248, B0263, B0268, B0408, or B0418 in HVAC Systems - Automatic or DTC B0248, B0263, B0408, or B0418 in HVAC Systems - Manual
B0263	Air Flow Control 6 Circuit	HVAC Control Module	DTC B0248, B0263, B0268, B0408, or B0418 in HVAC Systems - Automatic or DTC B0248, B0263, B0408, or B0418 in HVAC Systems - Manual
B0268	Air Flow Control 7 Circuit	HVAC Control Module	DTC B0248, B0263, B0268, B0408, or B0418 in HVAC Systems - Automatic
B0283	Electric Rear Defrost Circuit	EGM, LGM	DTC B0283 in Stationary Windows
B0408	Temperature Control 1 Circuit	HVAC Control Module	DTC B0248, B0263, B0268, B0408, or B0418 in HVAC Systems - Automatic or DTC B0248, B0263, B0408, or B0418 in HVAC Systems - Manual
B0414	Temperature Control 1 Feedback Circuit Range/Performance	HVAC Control Module	DTC B0229, B0414, B0424, B3761, or B3770 in HVAC Systems - Automatic or DTC B0414, B0424, B3761, or B3770 in HVAC Systems - Manual
B0418	Temperature Control 2 Circuit	HVAC Control Module	DTC B0248, B0263, B0268, B0408, or B0418 in HVAC Systems - Automatic or DTC B0248, B0263, B0408, or B0418 in HVAC Systems - Manual
B0424	Temperature Control 2 Feedback Circuit Range/Performance	HVAC Control Module	DTC B0229, B0414, B0424, B3761, or B3770 in HVAC Systems - Automatic or DTC B0414, B0424, B3761, or B3770 in HVAC Systems - Manual
B0428	Temperature Control 3 Circuit	Auxiliary HVAC Control Module	DTC B0145, B0428, or B3531 in HVAC Systems - Automatic or DTC B0145, B0428, or B3531 in HVAC Systems - Manual
B0510	Output Air Temperature Sensor 3 Circuit Range/Performance	HVAC Control Module	DTC B0174, B0179, B0510, or B0515 in HVAC Systems - Automatic
B0515	Output Air Temperature Sensor 4 Circuit Range/Performance	HVAC Control Module	DTC B0174, B0179, B0510, or B0515 in HVAC Systems - Automatic
B0540	Speedometer Circuit	IPC	DTC B0540 in Instrument Panel, Gages, and Console
B0560	Tachometer Circuit	IPC	DTC B0560 in Instrument Panel, Gages, and Console
B0770	All Wheel Drive (AWD) Indicator Circuit Malfunction	ATC	DTC B0770 in Transfer Case - NVG 226-NP8
B0775	Four Wheel Drive High Range (4HI) Indicator Circuit Malfunction	ATC	DTC B0775 in Transfer Case - NVG 226-NP8
B0780	Four Wheel Drive Low Range (4LO) Indicator Circuit Malfunction	ATC	DTC B0780 in Transfer Case - NVG 226-NP8
B0785	Two Wheel Drive High Range (2HI) Indicator Circuit Malfunction	ATC	DTC B0785 in Transfer Case - NVG 226-NP8
B0790	Transfer Case Neutral Indicator Circuit Malfunction	ATC	DTC B0790 in Transfer Case - NVG 226-NP8
B0951	Headlamps On Indicator Circuit	BCM	DTC B0951 in Lighting Systems
B1000	Electronic Control Unit (ECU) Performance	Audio Amplifier, BCM, DDM, DSM, DVD Player, EGM, FPDM, HVAC Control Module, HVAC Control Module - Auxiliary, LGM, IPC, PRM, Radio, SDM, VCIM, VTD	DTC B1000 in Computer/Integrating Systems
B1001	Option Configuration Error	SDM	DTC B1001 in SIR
B1004	Keep Alive Memory (KAM) Reset	OnStar® VCIM	DTC B1004 in Computer/Integrating Systems
B1007	EEPROM Write Error	OnStar® VCIM, VTD	DTC B1007 in Computer/Integrating Systems
B1009	EEPROM Checksum Mismatch	OnStar® VCIM, VTD	DTC B1009 in Computer/Integrating Systems
B1017	Output Driver Module Performance	DDM, PDM	DTC B1017 or B3970 in Doors
B1017	Output Driver Module Performance	LGM	DTC B1017 or B3970 in Wipers/Washer Systems
B1023	Integral Switch Performance	DDM, PDM	DTC B1023 in Doors
B1025	Audio ([+] or generic) Output 1 (left front or generic) Circuit	Radio	DTC B1025, B1035, B1045, or B1055 in Entertainment
B1035	Audio ([+] or generic) Output 2 (right front) Circuit	Radio	DTC B1025, B1035, B1045, or B1055 in Entertainment
B1045	Audio ([+] or generic) Output 3 (left rear) Circuit	Radio	DTC B1025, B1035, B1045, or B1055 in Entertainment
B1055	Audio ([+] or generic) Output 4 (right rear) Circuit	Radio	DTC B1025, B1035, B1045, or B1055 in Entertainment
B1259	Antenna Ground Circuit	DRR	DTC B1259 in Entertainment
B1271	Theft Locked	Navigation Radio	DTC B1271 in Entertainment
B1325	Device Power 1 Circuit	Power Roof Module	DTC B1325 and B1335 in Roof
B1335	Device Power 3 Circuit	Power Roof Module	DTC B1325 and B1335 in Roof
B1372	Device Ignition 1 (ON and START) Circuit Low	IPC	DTC B1372 in Instrument Panel, Gages, and Console
B1375	Device Ignition 3 Circuit	HVAC Control Module	DTC B1375 in HVAC Systems - Automatic or DTC B1375 in HVAC Systems - Manual
B1397	Device Voltage Reference Output Circuit Low	BCM	DTC B1397 in Computer/Integrating Systems
B1440	Power Mode Master Input Circuits Mismatch	BCM	DTC B1440 in Computer/Integrating Systems
B1477	Retained Accessory Power Circuit Low	BCM	DTC B1477 in Computer/Integrating Systems
B1480	Battery Rundown Protection Circuit	BCM	DTC B1480 in Lighting Systems
B1530	Discard Passenger Presence System 1	SDM	DTC B1530 in SIR
B1550	Mirror Left Front or Right Front Select Switch Circuit	DDM, PDM	DTC B1550 in Doors
B1720	Mirror Up and Down Control Switch Circuit	DDM, PDM	DTC B1720 in Doors
B1721	Mirror Left and Right Control Switch Circuit	DDM, PDM	DTC B1721 in Doors
B1723	Mirror Motor Control Circuit 1 Performance	DDM, PDM	DTC B1723 in Doors
B1724	Mirror Motor Control Circuit 2 Performance	DDM, PDM	DTC B1724 in Doors
B1735	Driver Seat Front Up Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1740	Driver Seat Front Down Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1745	Driver Seat Rear Up Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1750	Driver Seat Rear Down Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1755	Driver Seat Assembly Forward Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1760	Driver Seat Assembly Rearward Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1815	Driver Seat Recline Forward Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1820	Driver Seat Recline Rearward Switch Circuit	DSM	DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 in Seats
B1825	Driver Seat Recline Position Sensor Circuit	DSM	DTC B1825, B1850, B1860, B2355, B2365, or B2375 in Seats
B1830	Driver Seat Lumbar Forward Switch Circuit	DSM	DTC B1830, B1835, B1840 or B1845 in Seats
B1835	Driver Seat Lumbar Rearward Switch Circuit	DSM	DTC B1830, B1835, B1840 or B1845 in Seats
B1840	Driver Seat Lumbar Up Switch Circuit	DSM	DTC B1830, B1835, B1840 or B1845 in Seats
B1845	Driver Seat Lumbar Down Switch Circuit	DSM	DTC B1830, B1835, B1840 or B1845 in Seats
B1850	Driver Seat Lumbar Horizontal Position Sensor Circuit	DSM	DTC B1825, B1850, B1860, B2355, B2365, or B2375 in Seats
B1860	Driver Seat Lumbar Vertical Position Sensor Circuit	DSM	DTC B1825, B1850, B1860, B2355, B2365, or B2375 in Seats
B2355	Driver Seat Front Vertical Position Sensor Circuit	DSM	DTC B1825, B1850, B1860, B2355, B2365, or B2375 in Seats
B2365	Driver Seat Rear Vertical Position Sensor Circuit	DSM	DTC B1825, B1850, B1860, B2355, B2365, or B2375 in Seats
B2375	Driver Seat Assembly Horizontal Position Sensor Circuit	DSM	DTC B1825, B1850, B1860, B2355, B2365, or B2375 in Seats
B2425	Driver Seat Heater Circuit	DSM	DTC B2425 or B2430 in Seats
B2430	Passenger Seat Heater Circuit	DSM	DTC B2425 or B2430 in Seats
B2435	Driver Seat Back Heater Sensor Circuit	DSM	DTC B2435 or B2440 in Seats
B2440	Passenger Seat Back Heater Sensor Circuit	DSM	DTC B2435 or B2440 in Seats
B2455	Cellular Phone Microphone Circuit	OnStar® VCIM	DTC B2455 in Cellular Communication
B2462	Global Positioning System (GPS) Signal Error	Navigation Radio	DTC B2462 in Navigation Systems
B2470	Cellular Phone Antenna Circuit	OnStar® VCIM	DTC B2470 in Cellular Communication
B2476	Cellular Phone Select Service Switch Malfunction	OnStar® VCIM	DTC B2476 in Cellular Communication
B2482	Cellular Phone Select Switch Range/Performance	OnStar® VCIM	DTC B2482 in Cellular Communication
B2483	Global Positioning System (GPS) Sensor Circuit Low	OnStar® VCIM	DTC B2483 or B2484 in Cellular Communication
B2484	Global Positioning System (GPS) Sensor Circuit Open	OnStar® VCIM	DTC B2483 or B2484 in Cellular Communication
B2527	Front Foglamps Circuit Low	BCM	DTC B2527 in Lighting Systems
B2530	Front Foglamps Control Circuit	BCM	DTC B2530 in Lighting Systems
B2540	Rear Foglamps Control Circuit	BCM	DTC B2540 in Lighting Systems
B2550	Backup Lamps Control Circuit	BCM	DTC B2550 in Lighting Systems
B2575	Headlamp Control Circuit	BCM	DTC B2575 in Lighting Systems
B2580	Headlamp High Beam Control Circuit	BCM	DTC B2580 in Lighting Systems
B2585	Park Lamp Control Circuit	BCM	DTC B2585 in Lighting Systems
B2610	Passenger Compartment Dimming 1 Circuit	BCM	DTC B2610 in Lighting Systems
B2615	Passenger Compartment Dimming 2 Circuit	BCM	DTC B2615 in Lighting Systems
B2620	Display Dimming Pulse Width Modulation (PWM) Input Circuit	BCM	DTC B2620 in Lighting Systems
B2625	Display Dimming Pulse Width Modulation (PWM) Output Circuit	BCM	DTC B2625 in Lighting Systems
B2645	Ambient Light Sensor Circuit	BCM	DTC B2645 in Lighting Systems
B2697	Headlamp Washer Request Circuit	BCM	DTC B2697 in Wipers/Washer Systems
B2725	Active Transfer Case (ATC) Mode Switch Circuit Malfunction	ATC	DTC B2725 in Transfer Case - NVG 226-NP8
B2734	Check Sum Error	VTD	DTC B2734 in Theft Deterrent - Immobilizer - Some Export Vehicles
B2815	Steering Wheel Controls Illegal Resistance Value	BCM	DTC B2815 in Entertainment or DTC B2815 in HVAC Systems - Automatic
B2945	Security System Sensor Power Circuit	BCM	DTC B2945 in Theft Deterrent
B2955	Security System Sensor Data Circuit	BCM	DTC B2955 in Theft Deterrent
B2960	Security System Sensor Data Incorrect but Valid	BCM	DTC B2960 in Theft Deterrent
B2961	Key In Ignition Circuit	IPC	DTC B2961 in Instrument Panel, Gages, and Console
B3031	Security System Controller In Learn Mode	VTD	DTC B3031 in Theft Deterrent - Immobilizer - Some Export Vehicles
B3033	Security System Indicates Tamper	BCM	DTC B3033 in Theft Deterrent
B3055	No Transponder Modulation or No Transponder	VTD	DTC B3055 in Theft Deterrent - Immobilizer - Some Export Vehicles
B3060	Unprogrammed Transponder Identification Code Received	VTD	DTC B3060 in Theft Deterrent - Immobilizer - Some Export Vehicles
B3531	Air Flow Control 10 Circuit	Auxiliary HVAC Control Module	DTC B0145, B0428, or B3531 in HVAC Systems - Automatic or DTC B0145, B0428, or B3531 in HVAC Systems - Manual
B3606	Adjustable Foot Pedal Position Sensor Circuit	Driver Seat Module	DTC B3606 in Adjustable Pedals
B3607	Adjustable Foot Pedal Motor Circuit	Driver Seat Module	DTC B3606 in Adjustable Pedals
B3611	Moveable Roof Open Switch Circuit	Power Roof Module	DTC B3611, B3612, B3613, B3614, B3615 and B3616 in Roof
B3612	Moveable Roof Close Switch Circuit	Power Roof Module	DTC B3611, B3612, B3613, B3614, B3615 and B3616 in Roof
B3613	Cargo Area Window Release Switch Circuit	Power Roof Module	DTC B3611, B3612, B3613, B3614, B3615 and B3616 in Roof
B3614	Endgate Window Up Switch Circuit	Power Roof Module	DTC B3611, B3612, B3613, B3614, B3615 and B3616 in Roof
B3615	Endgate Window Down Switch Circuit	Power Roof Module	DTC B3611, B3612, B3613, B3614, B3615 and B3616 in Roof
B3616	Endgate Window Express Up or Down Circuit	Power Roof Module	DTC B3611, B3612, B3613, B3614, B3615 and B3616 in Roof
B3761	Air Flow Control 3 Feedback Circuit	HVAC Control Module	DTC B0229, B0414, B0424, B3761, or B3770 in HVAC Systems - Automatic or DTC B0414, B0424, B3761, or B3770 in HVAC Systems - Manual
B3770	Air Flow Control 6 Feedback Circuit	HVAC Control Module	DTC B0229, B0414, B0424, B3761, or B3770 in HVAC Systems - Automatic or DTC B0414, B0424, B3761, or B3770 in HVAC Systems - Manual
B3801	Passenger Compartment Lamp Request Circuit	BCM	DTC B3801 in Lighting Systems
B3802	Parklamp Request Circuit	BCM	DTC B3802 in Lighting Systems
B3808	Rear Door Lock Relay Circuit	BCM	DTC B3808 in Doors
B3809	Rear Door Unlock Relay Circuit	BCM	DTC B3809 in Doors
B3810	Headlamp Washer Relay Circuit	BCM	DTC B3810 or B3811 in Wipers/Washer Systems
B3811	Rear Washer Relay Circuit	BCM	DTC B3810 or B3811 in Wipers/Washer Systems
B3819	Left Rear Window Up Control Circuit	BCM	DTC B3819 in Doors
B3820	Left Rear Window Down Control Circuit	BCM	DTC B3820 in Doors
B3821	Left Rear Window Relay Power Circuit	BCM	DTC B3821 in Doors
B3822	Right Rear Window Up Control Circuit	BCM	DTC B3822 in Doors
B3823	Right Rear Window Down Control Circuit	BCM	DTC B3823 in Doors
B3824	Right Rear Window Relay Power Circuit	BCM	DTC B3824 in Doors
B3855	Rollover Sensor Performance	SDM	DTC B3855, B3856, or B3857 in SIR
B3856	Discard Rollover Sensor	SDM	DTC B3855, B3856, or B3857 in SIR
B3857	Incorrect Rollover Sensor Installed	SDM	DTC B3855, B3856, or B3857 in SIR
B3935	Transponder Authentication Error	VTD	DTC B3935 in Theft Deterrent - Immobilizer - Some Export Vehicles
B3970	Rear Wiper Motor Circuit	LGM	DTC B1017 or B3970 in Wipers/Washer Systems
B3972	Moveable Roof Position Sensor	Power Roof Module	DTC B3972 in Roof
B3973	Moveable Roof Motor Circuits	Power Roof Module	DTC B3973 in Roof
C0035	Left Front Wheel Speed Sensor Circuit	EBCM	DTC C0035 or C0040 in Antilock Brake System
C0040	Right Front Wheel Speed Sensor Circuit	EBCM	DTC C0035 or C0040 in Antilock Brake System
C0055	Rear Wheel Speed Sensor Circuit	EBCM	DTC C0055 or P0609 in Antilock Brake System
C0110	Pump Motor Circuit	EBCM	DTC C0110 in Antilock Brake System
C0161	Antilock Brake System (ABS) / Traction Control System (TCS) Brake Switch	EBCM	DTC C0161 in Antilock Brake System
C0201	Antilock Brake System (ABS) Enable Relay Contact Circuit	EBCM	DTC C0201 in Antilock Brake System
C0221	Right Front Wheel Speed Sensor Circuit Open	EBCM	DTC C0221-C0227 or C021 in Antilock Brake System
C0222	Right Front Wheel Speed Signal Missing	EBCM	DTC C0221-C0227 or C021 in Antilock Brake System
C0223	Right Front Wheel Speed Signal Erratic	EBCM	DTC C0221-C0227 or C021 in Antilock Brake System
C0225	Left Front Wheel Speed Sensor Circuit Open	EBCM	DTC C0221-C0227 or C021 in Antilock Brake System
C0226	Left Front Wheel Speed Signal Missing	EBCM	DTC C0221-C0227 or C021 in Antilock Brake System
C0227	Left Front Wheel Speed Signal Erratic	EBCM	DTC C0221-C0227 or C021 in Antilock Brake System
C0229	Drop Out of Both Front Speed Sensors	EBCM	DTC C0229 or C029 in Antilock Brake System
C0238	Wheel Speed Mismatch	EBCM	DTC C0238 or C038 in Antilock Brake System
C0241	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0242	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0243	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0244	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0245	EBCM Control Valve Circuit (w/ NW7) or Wheel Speed Sensor Frequency Error (w/o NW7)	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0246	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0247	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0248	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0251	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0252	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0253	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0254	EBCM Control Valve Circuit	EBCM	DTC C0241-C0254 or C041-C054 in Antilock Brake System
C0265	EBCM Motor Relay Circuit	EBCM	DTC C0265 or C0266 and C065 or C066 in Antilock Brake System
C0266	EBCM Motor Relay Circuit	EBCM	DTC C0265 or C0266 and C065 or C066 in Antilock Brake System
C0267	Pump Motor Circuit Open	EBCM	DTC C0267 or C0268 and C067 or C068 in Antilock Brake System
C0268	Pump Motor Circuit Shorted	EBCM	DTC C0267 or C0268 and C067 or C068 in Antilock Brake System
C0269	Excessive Dump Time	EBCM	DTC C0269 or C0274 and C069 or C074 in Antilock Brake System
C0271	EBCM Malfunction	EBCM	DTC C0271-C0273, C0284 in Antilock Brake System
C0272	EBCM Malfunction	EBCM	DTC C0271-C0273, C0284 in Antilock Brake System
C0273	EBCM Malfunction	EBCM	DTC C0271-C0273, C0284 in Antilock Brake System
C0274	Excessive Isolation Time	EBCM	DTC C0269 or C0274 and C069 or C074 in Antilock Brake System
C0279	Powertrain Configuration Not Valid	EBCM	DTC C0279 in Antilock Brake System
C0281	Stop Lamp Switch Circuit	EBCM	DTC C0281 or C081 in Antilock Brake System
C0283	Mode Switch Circuit Malfunction	EBCM	DTC C0283 in Antilock Brake System
C0284	EBCM Malfunction	EBCM	DTC C0271-C0273, C0284 in Antilock Brake System
C0287	Delivered Torque Signal Malfunction	EBCM	DTC C0287, P1644, or P1689 in Antilock Brake System
C0290	Class 2 Data Link Malfunction	EBCM	DTC C0290 or C0292 in Antilock Brake System
C0292	Lost Communications with Engine Control System	EBCM	DTC C0290 or C0292 in Antilock Brake System
C0297	Powertrain Configuration Data Not Received	EBCM	DTC C0297 in Antilock Brake System
C0298	Powertrain Control Malfunction	EBCM	DTC C0298 or P0856 in Antilock Brake System
C0300	Rear Propshaft Speed Sensor Malfunction	ATC	DTC C0300 in Transfer Case - NVG 126-NP4 or DTC C0300 in Transfer Case - NVG 226-NP8
C0305	Front Propshaft Speed Sensor Malfunction	ATC	DTC C0305 in Transfer Case - NVG 126-NP4 or DTC C0305 in Transfer Case - NVG 226-NP8
C0306	Motor A or B Circuit Malfunction	ATC	DTC C0306 in Transfer Case - NVG 126-NP4 or DTC C0306 in Transfer Case - NVG 226-NP8
C0321	Transfer Case Lock Circuit Malfunction	ATC	DTC C0321 in Transfer Case - NVG 226-NP8
C0327	Encoder Circuit Malfunction	ATC	DTC C0327 in Transfer Case - NVG 126-NP4 or DTC C0327 in Transfer Case - NVG 226-NP8
C0359	Four Wheel Drive Low Range (4WD low) Discrete Output Circuit Malfunction	ATC	DTC C0359 in Transfer Case - NVG 226-NP8
C0374	General System Malfunction	ATC	DTC C0374 in Transfer Case - NVG 126-NP4 or DTC C0374 in Transfer Case - NVG 226-NP8
C0379	Front Axle System Malfunction	ATC	DTC C0379 in Transfer Case - NVG 226-NP8
C0550	Electronic Control Unit (ECU) Performance	EBCM	DTC C0550 in Antilock Brake System
C0550	ECU Malfunction	ATC	DTC C0550 in Transfer Case - NVG 126-NP4 or DTC C0550 in Transfer Case - NVG 226-NP8
P0013	Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit	PCM	DTC P0013 in Engine Controls - 4.2L
P0014	Exhaust Camshaft Position (CMP) System Performance	PCM	DTC P0014 in Engine Controls - 4.2L
P0016	Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation	ECM	DTC P0016 in Engine Controls - 5.3L
P0017	Crankshaft Position (CKP) Exhaust-Camshaft Position (CMP) Correlation	PCM	DTC P0017 in Engine Controls - 4.2L
P0030	HO2S Heater Control Circuit Bank 1 Sensor 1	ECM	DTC P0030, P0036, P0050, or P0056 in Engine Controls - 5.3L
P0036	HO2S Heater Control Circuit Bank 1 Sensor 2	ECM	DTC P0030, P0036, P0050, or P0056 in Engine Controls - 5.3L
P0050	HO2S Heater Control Circuit Bank 2 Sensor 1	ECM	DTC P0030, P0036, P0050, or P0056 in Engine Controls - 5.3L
P0053	HO2S Heater Resistance Sensor 1	PCM	DTC P0053 or P0054 in Engine Controls - 4.2L
P0054	HO2S Heater Resistance Sensor 2	PCM	DTC P0053 or P0054 in Engine Controls - 4.2L
P0056	HO2S Heater Control Circuit Bank 2 Sensor 2	ECM	DTC P0030, P0036, P0050, or P0056 in Engine Controls - 5.3L
P0068	Throttle Body Airflow Performance	ECM, PCM	DTC P0068 in Engine Controls - 4.2L or DTC P0068 in Engine Controls - 5.3L
P0101	Mass Air Flow (MAF) Sensor Performance	ECM	DTC P0101 in Engine Controls - 5.3L
P0102	Mass Air Flow (MAF) Sensor Circuit Low Frequency	ECM	DTC P0102 in Engine Controls - 5.3L
P0103	Mass Air Flow (MAF) Sensor Circuit High Frequency	ECM	DTC P0103 in Engine Controls - 5.3L
P0106	Manifold Absolute Pressure (MAP) Sensor Performance	ECM, PCM	DTC P0106 in Engine Controls - 4.2L or DTC P0106 in Engine Controls - 5.3L
P0107	Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage	ECM, PCM	DTC P0107 in Engine Controls - 4.2L or DTC P0107 in Engine Controls - 5.3L
P0108	Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage	ECM, PCM	DTC P0108 in Engine Controls - 4.2L or DTC P0108 in Engine Controls - 5.3L
P0112	Intake Air Temperature (IAT) Sensor Circuit Low Voltage	ECM, PCM	DTC P0112 in Engine Controls - 4.2L or DTC P0112 in Engine Controls - 5.3L
P0113	Intake Air Temperature (IAT) Sensor Circuit High Voltage	ECM, PCM	DTC P0113 in Engine Controls - 4.2L or DTC P0113 in Engine Controls - 5.3L
P0116	Engine Coolant Temperature (ECT) Sensor Performance	ECM	DTC P0116 in Engine Controls - 5.3L
P0117	Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage	ECM, PCM	DTC P0117 in Engine Controls - 4.2L or DTC P0117 in Engine Controls - 5.3L
P0118	Engine Coolant Temperature (ECT) Sensor Circuit High Voltage	ECM, PCM	DTC P0118 in Engine Controls - 4.2L or DTC P0118 in Engine Controls - 5.3L
P0120	Throttle Position (TP) Sensor 1 Circuit	ECM, PCM	DTC P0120 in Engine Controls - 4.2L or DTC P0120 in Engine Controls - 5.3L
P0121	Throttle Position (TP) Sensor 1 Performance	ECM	DTC P0121 in Engine Controls - 5.3L
P0122	Throttle Position (TP) Sensor 1 Circuit Low Voltage	ECM, PCM	DTC P0122 in Engine Controls - 4.2L or DTC P0122 in Engine Controls - 5.3L
P0123	Throttle Position (TP) Sensor 1 Circuit High Voltage	ECM, PCM	DTC P0123 in Engine Controls - 4.2L or DTC P0123 in Engine Controls - 5.3L
P0125	Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control	PCM	DTC P0125 in Engine Controls - 4.2L
P0128	Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature	ECM, PCM	DTC P0128 in Engine Controls - 4.2L or DTC P0128 in Engine Controls - 5.3L
P0130	HO2S Circuit Sensor 1	PCM	DTC P0130 in Engine Controls - 4.2L
P0131	HO2S Circuit Low Voltage Sensor 1	PCM	DTC P0131 in Engine Controls - 4.2L
P0131	HO2S Circuit Low Voltage Bank 1 Sensor 1	ECM	DTC P0131 or P0151 in Engine Controls - 5.3L
P0132	HO2S Circuit High Voltage Sensor 1	PCM	DTC P0132 in Engine Controls - 4.2L
P0132	HO2S Circuit High Voltage Bank 1 Sensor 1	ECM	DTC P0132 or P0152 in Engine Controls - 5.3L
P0133	HO2S Slow Response Sensor 1	PCM	DTC P0133 in Engine Controls - 4.2L
P0133	HO2S Slow Response Bank 1 Sensor 1	ECM	DTC P0133 or P0153 in Engine Controls - 5.3L
P0134	HO2S Circuit Insufficient Activity Sensor 1	PCM	DTC P0134 in Engine Controls - 4.2L
P0134	HO2S Circuit Insufficient Activity Bank 1 Sensor 1	ECM	DTC P0134 or P0154 in Engine Controls - 5.3L
P0135	HO2S Heater Performance Bank 1 Sensor 1	PCM	DTC P0135 or P0141 in Engine Controls - 4.2L
P0135	HO2S Heater Performance Sensor 1	ECM	DTC P0135, P0141, P0155, or P0161 in Engine Controls - 5.3L
P0136	HO2S Circuit Bank 1 Sensor 2	ECM	DTC P0136 or P0156 in Engine Controls - 5.3L
P0137	HO2S Circuit Low Voltage Sensor 2	PCM	DTC P0137 in Engine Controls - 4.2L
P0137	HO2S Circuit Low Voltage Bank 1 Sensor 2	ECM	DTC P0137 or P0157 in Engine Controls - 5.3L
P0138	HO2S Circuit High Voltage Sensor 2	PCM	DTC P0138 in Engine Controls - 4.2L
P0138	HO2S Circuit High Voltage Bank 1 Sensor 2	ECM	DTC P0138 or P0158 in Engine Controls - 5.3L
P0140	HO2S Circuit Insufficient Activity Sensor 2	PCM	DTC P0140 in Engine Controls - 4.2L
P0140	HO2S Circuit Insufficient Activity Bank 1 Sensor 2	ECM	DTC P0140 or P0160 in Engine Controls - 5.3L
P0141	HO2S Heater Performance Sensor 2	PCM	DTC P0135 or P0141 in Engine Controls - 4.2L
P0141	HO2S Heater Performance Bank 1 Sensor 2	ECM	DTC P0135, P0141, P0155, or P0161 in Engine Controls - 5.3L
P0151	HO2S Circuit Low Voltage Bank 2 Sensor 1	ECM	DTC P0131 or P0151 in Engine Controls - 5.3L
P0152	HO2S Circuit High Voltage Bank 2 Sensor 1	ECM	DTC P0132 or P0152 in Engine Controls - 5.3L
P0153	HO2S Slow Response Bank 2 Sensor 1	ECM	DTC P0133 or P0153 in Engine Controls - 5.3L
P0154	HO2S Circuit Insufficient Activity Bank 2 Sensor 1	ECM	DTC P0134 or P0154 in Engine Controls - 5.3L
P0155	HO2S Heater Performance Bank 2 Sensor 1	ECM	DTC P0135, P0141, P0155, or P0161 in Engine Controls - 5.3L
P0156	HO2S Circuit Bank 2 Sensor 2	ECM	DTC P0136 or P0156 in Engine Controls - 5.3L
P0157	HO2S Circuit Low Voltage Bank 2 Sensor 2	ECM	DTC P0137 or P0157 in Engine Controls - 5.3L
P0158	HO2S Circuit High Voltage Bank 2 Sensor 2	ECM	DTC P0138 or P0158 in Engine Controls - 5.3L
P0160	HO2S Circuit Insufficient Activity Bank 2 Sensor 2	ECM	DTC P0140 or P0160 in Engine Controls - 5.3L
P0161	HO2S Heater Performance Bank 2 Sensor 2	ECM	DTC P0135, P0141, P0155, or P0161 in Engine Controls - 5.3L
P0171	Fuel Trim System Lean	PCM	DTC P0171 in Engine Controls - 4.2L
P0171	Fuel Trim System Lean Bank 1	ECM	DTC P0171 or P0174 in Engine Controls - 5.3L
P0172	Fuel Trim System Rich	PCM	DTC P0172 in Engine Controls - 4.2L
P0172	Fuel Trim System Rich Bank 1	ECM	DTC P0172 or P0175 in Engine Controls - 5.3L
P0174	Fuel Trim System Lean Bank 2	ECM	DTC P0171 or P0174 in Engine Controls - 5.3L
P0175	Fuel Trim System Rich Bank 2	ECM	DTC P0172 or P0175 in Engine Controls - 5.3L
P0201	Injector 1 Control Circuit	ECM, PCM	DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 4.2L or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0202	Injector 2 Control Circuit	ECM, PCM	DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 4.2L or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0203	Injector 3 Control Circuit	ECM, PCM	DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 4.2L or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0204	Injector 4 Control Circuit	ECM, PCM	DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 4.2L or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0205	Injector 5 Control Circuit	ECM, PCM	DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 4.2L or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0206	Injector 6 Control Circuit	ECM, PCM	DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 4.2L or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0207	Injector 7 Control Circuit	ECM	DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0208	Injector 8 Control Circuit	ECM	DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 5.3L
P0218	Transmission Fluid Overtemperature	PCM, TCM	DTC P0218 in Automatic Transmission - 4L60-E/4L65-E
P0220	Throttle Position (TP) Sensor 2 Circuit	ECM, PCM	DTC P0220 in Engine Controls - 4.2L or DTC P0220 in Engine Controls - 5.3L
P0222	Throttle Position (TP) Sensor 2 Circuit Low Voltage	ECM, PCM	DTC P0222 in Engine Controls - 4.2L or DTC P0222 in Engine Controls - 5.3L
P0223	Throttle Position (TP) Sensor 2 Circuit High Voltage	ECM, PCM	DTC P0223 in Engine Controls - 4.2L or DTC P0223 in Engine Controls - 5.3L
P0230	Fuel Pump Relay Control Circuit	ECM	DTC P0230 in Engine Controls - 5.3L
P0300	Engine Misfire Detected	ECM, PCM	DTC P0300 in Engine Controls - 4.2L or DTC P0300 in Engine Controls - 5.3L
P0301	Cylinder 1 Misfire Detected	PCM	DTC P0301-P0306 in Engine Controls - 4.2L
P0302	Cylinder 2 Misfire Detected	PCM	DTC P0301-P0306 in Engine Controls - 4.2L
P0303	Cylinder 3 Misfire Detected	PCM	DTC P0301-P0306 in Engine Controls - 4.2L
P0304	Cylinder 4 Misfire Detected	PCM	DTC P0301-P0306 in Engine Controls - 4.2L
P0305	Cylinder 5 Misfire Detected	PCM	DTC P0301-P0306 in Engine Controls - 4.2L
P0306	Cylinder 6 Misfire Detected	PCM	DTC P0301-P0306 in Engine Controls - 4.2L
P0315	Crankshaft Position (CKP) System Variation Not Learned	ECM, PCM	DTC P0315 in Engine Controls - 4.2L or DTC P0315 in Engine Controls - 5.3L
P0325	Knock Sensor (KS) Circuit	ECM	DTC P0325 in Engine Controls - 5.3L
P0326	Knock Sensor (KS) Performance	ECM, PCM	DTC P0326 in Engine Controls - 4.2L or DTC P0326 in Engine Controls - 5.3L
P0327	Knock Sensor (KS) 1 Circuit Low Frequency	ECM, PCM	DTC P0327 or P0332 in Engine Controls - 4.2L or DTC P0327 or P0332 in Engine Controls - 5.3L
P0332	Knock Sensor (KS) 2 Circuit Low Frequency	ECM, PCM	DTC P0327 or P0332 in Engine Controls - 4.2L or DTC P0327 or P0332 in Engine Controls - 5.3L
P0335	Crankshaft Position (CKP) Sensor Circuit	ECM, PCM	DTC P0335 in Engine Controls - 4.2L or DTC P0335 in Engine Controls - 5.3L
P0336	Crankshaft Position (CKP) Sensor Performance	PCM	DTC P0336 in Engine Controls - 4.2L
P0336	Crankshaft Position (CKP) Sensor Circuit	ECM	DTC P0336 in Engine Controls - 5.3L
P0340	Camshaft Position (CMP) Sensor Circuit	ECM, PCM	DTC P0340 in Engine Controls - 4.2L or DTC P0340 in Engine Controls - 5.3L
P0341	Camshaft Position (CMP) Sensor Performance	ECM, PCM	DTC P0341 in Engine Controls - 4.2L or DTC P0341 in Engine Controls - 5.3L
P0351	Ignition Coil 1 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0352	Ignition Coil 2 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0353	Ignition Coil 3 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0354	Ignition Coil 4 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0355	Ignition Coil 5 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0356	Ignition Coil 6 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0357	Ignition Coil 7 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0358	Ignition Coil 8 Control Circuit	ECM	DTC P0351-P0358 in Engine Controls - 5.3L
P0410	Secondary Air Injection (AIR) System	PCM	DTC P0410 in Engine Controls - 4.2L
P0420	Catalyst System Low Efficiency	PCM	DTC P0420 in Engine Controls - 4.2L
P0420	Catalyst System Low Efficiency Bank 1	ECM	DTC P0420 or P0430 in Engine Controls - 5.3L
P0430	Catalyst System Low Efficiency Bank 2	ECM	DTC P0420 or P0430 in Engine Controls - 5.3L
P0442	Evaporative Emission (EVAP) System Small Leak Detected	ECM, PCM	DTC P0442 in Engine Controls - 4.2L or DTC P0442 in Engine Controls - 5.3L
P0443	Evaporative Emission (EVAP) Purge Solenoid Control Circuit	ECM	DTC P0443 in Engine Controls - 5.3L
P0446	Evaporative Emission (EVAP) Vent System Performance	ECM, PCM	DTC P0446 in Engine Controls - 4.2L or DTC P0446 in Engine Controls - 5.3L
P0449	Evaporative Emission (EVAP) Vent Solenoid Control Circuit	ECM	DTC P0449 in Engine Controls - 5.3L
P0451	Fuel Tank Pressure (FTP) Sensor Performance	ECM	DTC P0451 in Engine Controls - 5.3L
P0452	Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage	ECM, PCM	DTC P0452 in Engine Controls - 4.2L or DTC P0452 in Engine Controls - 5.3L
P0453	Fuel Tank Pressure (FTP) Sensor Circuit High Voltage	ECM, PCM	DTC P0453 in Engine Controls - 4.2L or DTC P0453 in Engine Controls - 5.3L
P0454	Fuel Tank Pressure (FTP) Sensor Circuit Intermittent	ECM	DTC P0454 in Engine Controls - 5.3L
P0455	Evaporative Emission (EVAP) System Large Leak Detected	ECM, PCM	DTC P0455 in Engine Controls - 4.2L or DTC P0455 in Engine Controls - 5.3L
P0461	Fuel Level Sensor Performance	ECM, PCM	DTC P0461 in Instrument Panel, Gages, and Console
P0462	Fuel Level Sensor Circuit Low Voltage	ECM, PCM	DTC P0462 in Instrument Panel, Gages, and Console
P0463	Fuel Level Sensor Circuit High Voltage	ECM, PCM	DTC P0463 in Instrument Panel, Gages, and Console
P0464	Fuel Level Sensor Circuit Intermittent	ECM, PCM	DTC P0464 in Instrument Panel, Gages, and Console
P0480	Cooling Fan Relay 1 Control Circuit	ECM, PCM	DTC P0480 in Engine Cooling
P0483	Cooling Fan System Performance	ECM, PCM	DTC P0483 or P0493 in Engine Cooling
P0493	Cooling Fan Overspeed	ECM, PCM	DTC P0483 or P0493 in Engine Cooling
P0495	Cooling Fan Speed High	ECM, PCM	DTC P0495 in Engine Cooling
P0496	Evaporative Emission (EVAP) System Flow During Non-Purge	ECM, PCM	DTC P0496 in Engine Controls - 4.2L or DTC P0496 in Engine Controls - 5.3L
P0502	Vehicle Speed Sensor (VSS) Circuit Low Voltage	PCM	DTC P0502 in Automatic Transmission - 4L60-E/4L65-E
P0503	Vehicle Speed Sensor (VSS) Circuit Intermittent	PCM	DTC P0503 in Automatic Transmission - 4L60-E/4L65-E
P0506	Idle Speed Low	ECM, PCM	DTC P0506 in Engine Controls - 4.2L or DTC P0506 in Engine Controls - 5.3L
P0507	Idle Speed High	ECM, PCM	DTC P0507 in Engine Controls - 4.2L or DTC P0507 in Engine Controls - 5.3L
P0522	Engine Oil Pressure (EOP) Sensor Circuit Low Voltage	ECM, PCM	DTC P0522 in Instrument Panel, Gages, and Console
P0523	Engine Oil Pressure (EOP) Sensor Circuit High Voltage	ECM, PCM	DTC P0523 in Instrument Panel, Gages, and Console
P0526	Cooling Fan Speed Sensor Circuit	ECM, PCM	DTC P0526 in Engine Cooling
P0530	Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit	ECM, PCM	DTC P0530 in HVAC Systems - Automatic or DTC P0530 in HVAC Systems - Manual
P0556	Brake Booster Pressure Sensor Performance	ECM	DTC P0556 in Engine Controls - 5.3L
P0557	Brake Booster Pressure Sensor Circuit Low Voltage	ECM	DTC P0557 in Engine Controls - 5.3L
P0558	Brake Booster Pressure Sensor Circuit High Voltage	ECM	DTC P0558 in Engine Controls - 5.3L
P0562	System Voltage Low	ECM, PCM, TCM	DTC P0562 in Automatic Transmission - 4L60-E/4L65-E or DTC P0562 in Engine Electrical
P0563	System Voltage High	ECM, PCM, TCM	DTC P0563 in Automatic Transmission - 4L60-E/4L65-E or DTC P0563 in Engine Electrical
P0567	Cruise Control Resume Switch Circuit	PCM	DTC P0567 in Cruise Control
P0568	Cruise Control Set Switch Circuit	PCM	DTC P0568 in Cruise Control
P0601	Transmission Control Module (TCM) Read Only Memory (ROM)	TCM	DTC P0601, P0602, P0603, P0604, or P1621 in Automatic Transmission - 4L60-E/4L65-E
P0601	Control Module Read Only Memory (ROM)	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P0602	Transmission Control Module (TCM) Not Programmed	TCM	DTC P0601, P0602, P0603, P0604, or P1621 in Automatic Transmission - 4L60-E/4L65-E
P0602	Control Module Not Programmed	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P0603	Transmission Control Module (TCM) Long Term Memory Reset	TCM	DTC P0601, P0602, P0603, P0604, or P1621 in Automatic Transmission - 4L60-E/4L65-E
P0603	Control Module Long Term Memory Reset	ECM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P0604	Transmission Control Module (TCM) Random Access Memory (RAM)	TCM	DTC P0601, P0602, P0603, P0604, or P1621 in Automatic Transmission - 4L60-E/4L65-E
P0604	Control Module Random Access Memory (RAM)	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P0606	Control Module Internal Performance	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P0607	Control Module Performance	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P0608	Vehicle Speed Output Circuit	PCM, TCM	DTC P0608 in Instrument Panel, Gages, and Console
P0609	Vehicle Speed Output Circuit 2	PCM, TCM	DTC C0055 or P0609 in Antilock Brake System
P060D	Control Module Accelerator Pedal Position (APP) System Performance	ECM, PCM	DTC P060D in Engine Controls - 4.2L or DTC P060D in Engine Controls - 5.3L
P060E	Control Module Throttle Position (TP) System Performance	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P0621	Generator L-Terminal Circuit	ECM, PCM	DTC P0621 in Engine Electrical
P0622	Generator F-Terminal Circuit	ECM, PCM	DTC P0622 in Engine Electrical
P0641	5 Volt Reference 1 Circuit	ECM, PCM	DTC P0641 in Engine Controls - 4.2L or DTC P0641 in Engine Controls - 5.3L
P0650	Malfunction Indicator Lamp (MIL) Control Circuit	ECM	DTC P0650 in Engine Controls - 5.3L
P0651	5 Volt Reference 2 Circuit	ECM, PCM	DTC P0651 in Engine Controls - 4.2L or DTC P0651 in Engine Controls - 5.3L
P0654	Engine Speed Output Circuit	ECM, PCM	DTC P0654 in Instrument Panel, Gages, and Console
P0685	Engine Controls Ignition Relay Control Circuit	ECM	DTC P0685 in Engine Controls - 5.3L
P0689	Engine Controls Ignition Relay Feedback Circuit Low Voltage	ECM	DTC P0689 in Engine Controls - 5.3L
P0690	Engine Controls Ignition Relay Feedback Circuit High Voltage	ECM	DTC P0690 in Engine Controls - 5.3L
P0700	Transmission Control Module (TCM) Requested MIL Illumination	ECM	DTC P0700 in Engine Controls - 5.3L
P0705	Transmission Range (TR) Switch Circuit	PCM	DTC P0705 in Automatic Transmission - 4L60-E/4L65-E
P0711	Transmission Fluid Temperature (TFT) Sensor Performance	PCM, TCM	DTC P0711 in Automatic Transmission - 4L60-E/4L65-E
P0712	Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage	PCM, TCM	DTC P0712 in Automatic Transmission - 4L60-E/4L65-E
P0713	Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage	PCM, TCM	DTC P0713 in Automatic Transmission - 4L60-E/4L65-E
P0719	Brake Switch Circuit Low Voltage	PCM, TCM	DTC P0719 in Automatic Transmission - 4L60-E/4L65-E
P0722	Output Speed Sensor Circuit Low Voltage	TCM	DTC P0722 in Automatic Transmission - 4L60-E/4L65-E
P0723	Output Speed Sensor Circuit Intermittent	TCM	DTC P0723 in Automatic Transmission - 4L60-E/4L65-E
P0724	Brake Switch Circuit High Voltage	PCM, TCM	DTC P0724 in Automatic Transmission - 4L60-E/4L65-E
P0740	Torque Converter Clutch (TCC) Enable Solenoid Control Circuit	PCM	DTC P0740 in Automatic Transmission - 4L60-E/4L65-E
P0741	Torque Converter Clutch (TCC) System - Stuck Off	PCM, TCM	DTC P0741 in Automatic Transmission - 4L60-E/4L65-E
P0742	Torque Converter Clutch (TCC) System - Stuck On	PCM, TCM	DTC P0742 in Automatic Transmission - 4L60-E/4L65-E
P0748	Pressure Control (PC) Solenoid Control Circuit	PCM	DTC P0748 in Automatic Transmission - 4L60-E/4L65-E
P0751	1-2 Shift Solenoid (SS) Valve Performance - No First or Fourth Gear	PCM, TCM	DTC P0751 in Automatic Transmission - 4L60-E/4L65-E
P0752	1-2 Shift Solenoid (SS) Valve Performance - No Second or Third Gear	PCM, TCM	DTC P0752 in Automatic Transmission - 4L60-E/4L65-E
P0753	1-2 Shift Solenoid (SS) Control Circuit	PCM	DTC P0753 in Automatic Transmission - 4L60-E/4L65-E
P0756	2-3 Shift Solenoid (SS) Valve Performance - No First or Second Gear	PCM, TCM	DTC P0756 in Automatic Transmission - 4L60-E/4L65-E
P0757	2-3 Shift Solenoid (SS) Valve Performance - No Third or Fourth Gear	PCM, TCM	DTC P0757 in Automatic Transmission - 4L60-E/4L65-E
P0758	2-3 Shift Solenoid (SS) Control Circuit	PCM	DTC P0758 in Automatic Transmission - 4L60-E/4L65-E
P0785	3-2 Shift Solenoid (SS) Control Circuit	PCM	DTC P0785 in Automatic Transmission - 4L60-E/4L65-E
P0787	3-2 Shift Solenoid (SS) Control Circuit Low Voltage	TCM	DTC P0787 in Automatic Transmission - 4L60-E/4L65-E
P0788	3-2 Shift Solenoid (SS) Control Circuit High Voltage	TCM	DTC P0788 in Automatic Transmission - 4L60-E/4L65-E
P0856	Traction Control Torque Request Circuit	EBCM	DTC C0298 or P0856 in Antilock Brake System
P0894	Transmission Component Slipping	PCM, TCM	DTC P0894 in Automatic Transmission - 4L60-E/4L65-E
P0961	Line Pressure Control (PC) Solenoid System Performance	TCM	DTC P0961 in Automatic Transmission - 4L60-E/4L65-E
P0973	1-2 Shift Solenoid (SS) Control Circuit Low Voltage	TCM	DTC P0973 in Automatic Transmission - 4L60-E/4L65-E
P0974	1-2 Shift Solenoid (SS) Control Circuit High Voltage	TCM	DTC P0974 in Automatic Transmission - 4L60-E/4L65-E
P0976	2-3 Shift Solenoid (SS) Control Circuit Low Voltage	TCM	DTC P0976 in Automatic Transmission - 4L60-E/4L65-E
P0977	2-3 Shift Solenoid (SS) Control Circuit High Voltage	TCM	DTC P0977 in Automatic Transmission - 4L60-E/4L65-E
P1101	Intake Air Flow System Performance	ECM	DTC P1101 in Engine Controls - 5.3L
P1133	HO2S Insufficient Switching Sensor 1	PCM	DTC P1133 in Engine Controls - 4.2L
P1133	HO2S Insufficient Switching Bank 1 Sensor 1	ECM	DTC P1133 or P1153 in Engine Controls - 5.3L
P1134	HO2S Transition Time Ratio Bank 1 Sensor 1	ECM	DTC P1134 or P1154 in Engine Controls - 5.3L
P1137	HO2S Circuit Low Voltage During Power Enrichment Sensor 2	PCM	DTC P1137 in Engine Controls - 4.2L
P1138	HO2S Circuit High Voltage During Decel Fuel Cut-Off (DFCO) Sensor 2	PCM	DTC P1138 in Engine Controls - 4.2L
P1153	HO2S Insufficient Switching Bank 2 Sensor 1	ECM	DTC P1133 or P1153 in Engine Controls - 5.3L
P1154	HO2S Transition Time Ratio Bank 2 Sensor 1	ECM	DTC P1134 or P1154 in Engine Controls - 5.3L
P1171	Fuel System Lean During Acceleration	ECM	DTC P1171 in Engine Controls - 4.2L
P1258	Engine Coolant Overtemperature - Protection Mode Active	ECM, PCM	DTC P1258 in Engine Cooling
P1380	Misfire Detected - Rough Road Data Not Available	ECM, PCM	DTC P1380 in Engine Controls - 4.2L or DTC P1380 in Engine Controls - 5.3L
P1381	Misfire Detected - No Communication With Brake Control Module	ECM, PCM	DTC P1381 in Engine Controls - 4.2L or DTC P1381 in Engine Controls - 5.3L
P1481	Cooling Fan Speed Sensor Circuit	ECM, PCM	DTC P1481 in Engine Cooling
P1482	Cooling Fan Speed Output Circuit	ECM, PCM	DTC P1482 in Engine Cooling
P1484	Cooling Fan System Performance	ECM, PCM	DTC P1484 in Engine Cooling
P1516	Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance	ECM, PCM	DTC P1516 in Engine Controls - 4.2L or DTC P1516 in Engine Controls - 5.3L
P1574	Stoplamp Switch Circuit	PCM	DTC P1574 in Cruise Control
P1621	Transmission Control Module (TCM) Long Term Memory Performance	TCM	DTC P0601, P0602, P0603, P0604, or P1621 in Automatic Transmission - 4L60-E/4L65-E
P1621	Control Module Long Term Memory Performance	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P1626	Theft Deterrent Fuel Enable Signal Lost	BCM	DTC P1626 in Theft Deterrent
P1630	Theft Deterrent Learn Mode Active	ECM, PCM	DTC P1630 in Theft Deterrent or DTC P1630 in Theft Deterrent - Immobilizer - Some Export Vehicles
P1631	Theft Deterrent Fuel Enable Signal Not Correct	ECM, PCM	DTC P1631 in Theft Deterrent
P1631	Theft Deterrent Fuel Enable Signal Not Correct	ECM, PCM	DTC P1631 in Theft Deterrent - Immobilizer - Some Export Vehicles
P1632	Theft Deterrent Fuel Disable Signal Received	ECM, PCM	DTC P1632 in Theft Deterrent
P1633	Ignition 0 Switch Circuit	ECM, PCM	DTC P1633 in Engine Electrical
P1634	Ignition 1 Switch Circuit	ECM, PCM	DTC P1634 in Engine Electrical
P1637	Generator L-Terminal Circuit	ECM, PCM	DTC P1637 in Engine Electrical
P1681	Control Module Throttle Position (TP) System Performance	PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L
P1682	Ignition 1 Switch Circuit 2	ECM, PCM	DTC P1682 in Engine Controls - 4.2L or DTC P1682 in Engine Controls - 5.3L
P1689	Traction Control Delivered Torque Output Circuit	PCM, TCM	DTC C0287, P1644, or P1689 in Antilock Brake System
P1810	Transmission Fluid Pressure (TFP) Position Switch Circuit	PCM, TCM	DTC P1810 in Automatic Transmission - 4L60-E/4L65-E
P1815	Transmission Fluid Pressure (TFP) Valve Position Switch - Start in Wrong Range	TCM	DTC P1815 in Automatic Transmission - 4L60-E/4L65-E
P1816	Transmission Fluid Pressure (TFP) Valve Position Switch Indicates Park/Neutral (P/N) with Drive Ratio	TCM	DTC P1816 in Automatic Transmission - 4L60-E/4L65-E
P2101	Control Module Throttle Actuator Position Performance	ECM, PCM	DTC P2101 in Engine Controls - 4.2L or DTC P2101 in Engine Controls - 5.3L
P2119	Throttle Closed Position Performance	ECM, PCM	DTC P2119 in Engine Controls - 4.2L or DTC P2119 in Engine Controls - 5.3L
P2120	Accelerator Pedal Position (APP) Sensor 1 Circuit	ECM, PCM	DTC P2120 in Engine Controls - 4.2L or DTC P2120 in Engine Controls - 5.3L
P2122	Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage	ECM, PCM	DTC P2122 in Engine Controls - 4.2L or DTC P2122 in Engine Controls - 5.3L
P2123	Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage	ECM, PCM	DTC P2123 in Engine Controls - 4.2L or DTC P2123 in Engine Controls - 5.3L
P2125	Accelerator Pedal Position (APP) Sensor 2 Circuit	ECM, PCM	DTC P2125 in Engine Controls - 4.2L or DTC P2125 in Engine Controls - 5.3L
P2127	Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage	ECM, PCM	DTC P2127 in Engine Controls - 4.2L or DTC P2127 in Engine Controls - 5.3L
P2128	Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage	ECM, PCM	DTC P2128 in Engine Controls - 4.2L or DTC P2128 in Engine Controls - 5.3L
P2135	Throttle Position (TP) Sensor 1-2 Correlation	ECM, PCM	DTC P2135 in Engine Controls - 4.2L or DTC P2135 in Engine Controls - 5.3L
P2138	Accelerator Pedal Position (APP) Sensor 1-2 Correlation	ECM, PCM	DTC P2138 in Engine Controls - 4.2L or DTC P2138 in Engine Controls - 5.3L
P2176	Minimum Throttle Position Not Learned	ECM, PCM	DTC P2176 in Engine Controls - 4.2L or DTC P2176 in Engine Controls - 5.3L
P2610	Control Module Ignition Off Timer Performance	ECM, PCM	DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 4.2L or DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610 in Engine Controls - 5.3L
P2761	Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit	PCM, TCM	DTC P2761 in Automatic Transmission - 4L60-E/4L65-E
P2763	Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit High Voltage	TCM	DTC P2763 in Automatic Transmission - 4L60-E/4L65-E
P2764	Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit Low Voltage	TCM	DTC P2764 in Automatic Transmission - 4L60-E/4L65-E
P2769	Torque Converter Clutch (TCC) Enable Solenoid Control Circuit Low Voltage	TCM	DTC P2769 in Automatic Transmission - 4L60-E/4L65-E
P2770	Torque Converter Clutch (TCC) Enable Solenoid Control Circuit High Voltage	TCM	DTC P2770 in Automatic Transmission - 4L60-E/4L65-E
P2A01	HO2S Performance Sensor 2	PCM	DTC P2A01 in Engine Controls - 4.2L
P3401	Cylinder 1 Deactivation Solenoid Control Circuit	ECM	DTC P3401 in Engine Controls - 5.3L
P3425	Cylinder 4 Deactivation Solenoid Control Circuit	ECM	DTC P3425 in Engine Controls - 5.3L
P3441	Cylinder 6 Deactivation Solenoid Control Circuit	ECM	DTC P3441 in Engine Controls - 5.3L
U0001	High Speed CAN Communication Bus	ECM	DTC U0001
U0073	Control Module Communication Bus A Off	ECM, TCM	DTC U0073
U0100	Lost Communication with Engine Control Module (ECM)	TCM	DTC U0100-U0299
P3449	Cylinder 7 Deactivation Solenoid Control Circuit	ECM	DTC P3449 in Engine Controls - 5.3L
U0001	High Speed CAN Communication Bus	ECM	DTC U0001 in Computer/Integrating Systems
U0073	Control Module Communication Bus A Off	ECM, TCM	DTC U0073 in Computer/Integrating Systems
U0100	Lost Communication with Engine Control Module (ECM)	TCM	DTC U0100-U0299 in Computer/Integrating Systems
U0101	Lost Communication with Transmission Control Module (TCM)	ECM	DTC U0100-U0299 in Computer/Integrating Systems
U1000	Class 2 Data Link Malfunction	BCM, DDM, DRR, DSM, DVD Player, EBCM, EGM, PDM, HVAC Control Module, HVAC Control Module - Auxiliary, IPC, LGM, PCM, PRM, Radio, SDM, TCSCM, VCIM, VTD	DTC U1000 in Computer/Integrating Systems
U1016	Lost Communications With Powertrain/Engine Control Module (PCM/ECM)	BCM, DDM, DSM, DVD Player, EGM, PDM, HVAC Control Module, HVAC Control Module - Auxiliary, IPC, PRM, Radio, SDM, TCSCM, VTD	DTC U1001-U1254 in Computer/Integrating Systems
U1026	Lost Communications With Transfer Case Shift Control Module (TCSCM)	IPC, PCM	DTC U1001-U1254 in Computer/Integrating Systems
U1041	Lost Communications With Electronic Brake Control Module (EBCM)	IPC, PCM, SDM, TCSCM	DTC U1001-U1254 in Computer/Integrating Systems
U1064	Lost Communications With Body Control Module (BCM)	DSM, DVD Player, EGM, HVAC Control Module, HVAC Control Module - Auxiliary, IPC, PRM, Radio, PCM, SDM, TCSCM, VCIM, VTD	DTC U1001-U1254 in Computer/Integrating Systems
U1088	Lost Communications With Inflatable Restraint Sensing and Diagnostic Module (SDM)	IPC, Radio, VCIM	DTC U1001-U1254 in Computer/Integrating Systems
U1096	Lost Communications With Instrument Panel Cluster (IPC)	BCM, EGM, PRM, SDM	DTC U1001-U1254 in Computer/Integrating Systems
U1128	Lost Communications With Radio	HVAC Control Module - Auxiliary	DTC U1001-U1254 in Computer/Integrating Systems
U1133	Lost Communications With DVD Player	Radio	DTC U1001-U1254 in Computer/Integrating Systems
U1137	Lost Communications With Digital Radio Receiver (DRR)	Radio	DTC U1001-U1254 in Computer/Integrating Systems
U1151	Lost Communications With Communication Interface Module (OnStar®)	Radio	DTC U1001-U1254 in Computer/Integrating Systems
U1152	Lost Communications With HVAC Control Module	DDM, EGM, PDM, LGM, HVAC Control Module - Auxiliary, PCM	DTC U1001-U1254 in Computer/Integrating Systems
U1160	Lost Communications With Driver Door Module (DDM)	BCM, DSM, PDM, IPC	DTC U1001-U1254 in Computer/Integrating Systems
U1161	Lost Communications With Passenger Door Module (PDM)	BCM, DDM, IPC	DTC U1001-U1254 in Computer/Integrating Systems
U1162	Lost Communications With Lift Gate Module (LGM)/ End Gate Module (EGM)	BCM, IPC, PRM	DTC U1001-U1254 in Computer/Integrating Systems
U1166	Lost Communications With Driver Seat Module (DSM)	DDM, FPDM	DTC U1001-U1254 in Computer/Integrating Systems
U1167	Lost Communications With Rear Auxiliary HVAC Control Module	HVAC Control Module, Radio	DTC U1001-U1254 in Computer/Integrating Systems
U1173	Lost Communications With Power Roof Module (PRM)	EGM	DTC U1001-U1254 in Computer/Integrating Systems
U1192	Lost Communications With Vehicle Theft Deterrent (VTD)	BCM, PCM	DTC U1001-U1254 in Computer/Integrating Systems
U1241	Lost Communication With Scan Tool	SDM	DTC U1241 in SIR
U1300	Class 2 Data Link Low	DVD Player, HVAC Control Module, IPC, PCM, Radio, SDM, VCIM	DTC U1300, U1301, or U1305 in Computer/Integrating Systems
U1301	Class 2 Data Link High	DVD Player, HVAC Control Module, IPC, PCM, Radio, SDM, VCIM	DTC U1300, U1301, or U1305 in Computer/Integrating Systems
U1305	Class 2 Data Link Low or High	BCM, DSM, HVAC Control Module - Auxiliary, PRM	DTC U1300, U1301, or U1305 in Computer/Integrating Systems
U1500	Inter-Device Dedicated Bus Malfunction	OnStar® VCIM	DTC U1500 in Cellular Communication
U2100	High Speed CAN Communication Bus	TCM	DTC U2100 in Computer/Integrating Systems
U2105	Lost Communication With Engine Control Module (ECM)	TCM	DTC U2105-U2199 in Computer/Integrating Systems
001	System Disabled Information Stored	Air Suspension Compressor Assembly	DTC 001 in Air Suspension
002	Left Rear Position Sensor Circuit	Air Suspension Compressor Assembly	DTC 002 in Air Suspension
003	Right Rear Position Sensor Circuit	Air Suspension Compressor Assembly	DTC 003 in Air Suspension
023	Seat Belt Tension Sensor Circuit Out of Range	PPS	DTC 023 in SIR
024	PPS Ignition 1 Voltage Performance	PPS	DTC 024 in SIR
063	PPS Out of Calibration	PPS	DTC 063 in SIR
064	PPS Communication/ID Performance	PPS	DTC 064 in SIR
065	PPS Sensor Circuit Out of Range	PPS	DTC 065 in SIR