For 1990-2009 cars only
Diagnostic Trouble Codes
Diagnostic Procedures
Diagnostic Trouble Codes
- DTC 12 Diagnostic System Check
- DTC 21/31 Courtesy Lamps Feed Shorted to Ground
- DTC 22/32 Courtesy Lamps Return Shorted to Battery
- DTC 23/33 RAP Feed Shorted to Ground or Battery
- DTC 24/34 Seatbelt Indicator Shorted to Ground or Battery
- DTC 25/35 Security Indicator Status
- DTC 41 Last Message Received Valid
- DTC 42 Last Message Received Invalid
- DTC 43 Last Message Received with Sumcheck Error
- DTC 44 Last Message Received with Encryption Error
- DTC 45 Receiver Processing in 20 Second Lockout
- DTC 55 Begin Configuration Display
- DTC B0688 Security System Indicator Circuit High
- DTC B0768 Service Indicator Circuit High
- DTC B1000 ECU Malfunction
- DTC B1004 Keep Alive Memory (KAM) Reset
- DTC B1009 EEPROM Checksum Error
- DTC B1015 Passenger Deploy. Loop Resistance High
- DTC B1016 Passenger Deployment Loop Resistance Low
- DTC B1017 Passenger Deployment Loop Open
- DTC B1018 Passenger Deployment Loop Short to GND
- DTC B1019 Passenger Deploy. Loop Short to Voltage
- DTC B1021 Driver Deployment Loop Resistance High
- DTC B1022 Driver Deployment Loop Resistance Low
- DTC B1024 Driver Deployment Loop Short to Ground
- DTC B1025 Driver Deployment Loop Short to Voltage
- DTC B1026 Driver Deployment Loop Open
- DTC B1035 Discr. Sensor Closed or Short to GND
- DTC B1036 Discr. Sensor Open or Short to Voltage
- DTC B1051 Frontal Air Bag and Preten Deployment
- DTC B1053 Deployment Commanded w/Loop Malfunction
- DTC B1054 Infl Rst IP Module Switch CKT Failure
- DTC B1061 Lamp Circuit Failure
- DTC B1071 Internal SDM Failure
- DTC B2462 GPS Signal Error
- DTC B2476 Cellular Phone Select Service Switch Malfunction
- DTC B2725 ATC Mode Switch Circuit Malfunction
- DTC B2947 Security System Sensor Power CKT Low
- DTC B2948 Security System Sensor Power CKT High
- DTC B2957 Security System Sensor Data Circuit Low
- DTC B2958 Security System Sensor Data Circuit High
- DTC B2960 Sec Sys Sensor Data Incorrect but Valid
- DTC B3031 Security System Controller in Learn Mode
- DTC B3033 Security System Indicates Tamper
- DTC C0000 Vehicle Speed Information Circuit Malfunction
- DTC C0221 or C021 RF Wheel Speed Sensor Circuit Open
- DTC C0222 or C022 RF Wheel Speed Signal Missing
- DTC C0223 or C023 RF Wheel Speed Signal Erratic
- DTC C0225 or C025 LF Wheel Speed Sensor Circuit Open
- DTC C0226 or C026 LF Wheel Speed Signal Missing
- DTC C0227 or C027 LF Wheel Speed Signal Erratic
- DTC C0229 or C029 Drop Out of Front Wheel Speed Signals
- DTC C0235 or C035 Rear Wheel Speed Signal Circuit Open
- DTC C0236 or C036 Rear Wheel Speed Signal Circuit Missing
- DTC C0237 or C037 Rear Wheel Speed Signal Erratic
- DTC C0238 or C038 Wheel Speed Mismatch
- DTC C0241-C0254 or C041-C054 EBCM Control Valve Circuit
- DTC C0265 or C0266 and C065 C066 EBCM Relay Circuit
- DTC C0267 or C0268 and C067 or C068 Pump Motor Circuit Open/Shorted
- DTC C0269 or C0274 and C069 or C074 Excessive Dump/Isolation Time
- DTC C0271-C0273 or C071 or C073 EBCM Malfunction
- DTC C0281 or C081 Brake Switch Circuit
- DTC C0286 or C086 ABS Indicator Lamp Circuit Shorted to B+
- DTC C0288 or C088 Brake Warning Lamp Circuit Shorted to B+
- DTC C0300 Rear Speed Sensor Malfunction
- DTC C0305 Front Speed Sensor Malfunction
- DTC C0308 Motor A/B Circuit Low
- DTC C0309 Motor A/B Circuit High
- DTC C0310 Motor A/B Circuit Open
- DTC C0315 Motor Ground Circuit Open
- DTC C0323 T-Case Lock Circuit Low
- DTC C0324 T-Case Lock Circuit High
- DTC C0327 Encoder Circuit Malfunction
- DTC C0357 Park Switch Circuit High
- DTC C0362 4LO Discrete Output Circuit High
- DTC C0367 Front Axle Control Circuit High
- DTC C0374 General System Malfunction
- DTC C0376 Front/Rear Shaft Speed Mismatch
- DTC C0387 Unable to Perform Shift
- DTC C0472 Steering Handwheel Speed Sensor Signal V Low
- DTC C0473 Steering Handwheel Speed Sensor Signal V High
- DTC C0495 EVO Tracking Error
- DTC C0498 Steering Assist Control Actuator Feed Circuit Low
- DTC C0499 Steering Assist Control Solenoid Feed Circuit High
- DTC C0503 Steering Assist Control Solenoid Return Circuit Low
- DTC C0504 Steering Assist Control Solenoid Return Circuit High
- DTC C0550 ECU Malfunction
- DTC C0559 EEPROM Checksum Error
- DTC C0559 EEPROM Checksum Error
- DTC C0611 VIN Information Error
- DTC P0101 Mass Air Flow (MAF) Sensor Performance
- DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
- DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
- DTC P0106 Manifold Absolute Pressure (MAP) System Performance
- DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
- DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
- DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
- DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
- DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
- DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
- DTC P0121 Throttle Position (TP) Sensor Performance
- DTC P0122 Throttle Position (TP) Sensor Circuit Low Voltage
- DTC P0123 Throttle Position (TP)Sensor Circuit High Voltage
- DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control
- DTC P0131 HO2S Circuit Low Voltage Bank 1 Sensor 1
- DTC P0132 HO2S Circuit High Voltage Bank 1 Sensor 1
- DTC P0133 HO2S Slow Response Bank 1 Sensor 1
- DTC P0134 HO2S Circuit Insufficient Activity Bank 1 Sensor 1
- DTC P0135 HO2S Heater Performance Bank 1 Sensor 1
- DTC P0137 HO2S Circuit Low Voltage Bank 1 Sensor 2
- DTC P0138 HO2S Circuit High Voltage Bank 1 Sensor 2
- DTC P0140 HO2S Circuit Insufficient Activity Bank 1 Sensor 2
- DTC P0141 HO2S Heater Performance Bank 1 Sensor 2
- DTC P0151 HO2S Circuit Low Voltage Bank 2 Sensor 1
- DTC P0152 HO2S Circuit High Voltage Bank 2 Sensor 1
- DTC P0153 HO2S Slow Response Bank 2 Sensor 1
- DTC P0154 HO2S Circuit Insufficient Activity Bank 2 Sensor 1
- DTC P0155 HO2S Heater Performance Bank 2 Sensor 1
- DTC P0157 HO2S Circuit Low Voltage Bank 2 Sensor 2
- DTC P0158 HO2S Circuit High Voltage Bank 2 Sensor 2
- DTC P0160 HO2S Circuit Insufficient Activity Bank 2 Sensor 2
- DTC P0161 HO2S Heater Performance Bank 2 Sensor 2
- DTC P0171 Fuel Trim System Lean Bank 1
- DTC P0172 Fuel Trim System Rich Bank 1
- DTC P0174 Fuel Trim System Lean Bank 2
- DTC P0175 Fuel Trim System Rich Bank 2
- DTC P0218 Transmission Fluid Overtemperature
- DTC P0300 Engine Misfire Detected
- DTC P0325 Knock Sensor Module Performance
- DTC P0327 Knock Sensor (KS) Circuit
- DTC P0336 Crankshaft Position (CKP) Sensor Performance
- DTC P0337 Crankshaft Position (CKP) Sensor Circuit Low Duty Cycle
- DTC P0338 Crankshaft Position (CKP) Sensor Circuit High Duty Cycle
- DTC P0339 Crankshaft Position (CKP) Sensor Circuit Intermittent
- DTC P0340 Camshaft Position (CMP) Sensor Circuit
- DTC P0341 Camshaft Position (CMP) Sensor Performance
- DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient
- DTC P0404 Exhaust Gas Recirculation (EGR) Open Position Performance
- DTC P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage
- DTC P0410 Secondary Air Injection (AIR) System
- DTC P0420 Catalyst System Low Efficiency Bank 1
- DTC P0430 Catalyst System Low Efficiency Bank 2
- DTC P0440 Evaporative Emission (EVAP) System
- DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected
- DTC P0446 Evaporative Emission (EVAP) Vent System Performance
- DTC P0452 Fuel Tank Pressure Sensor Circuit Low Voltage
- DTC P0453 Fuel Tank Pressure Sensor Circuit High Voltage
- DTC P0461 Fuel Level Sensor Performance
- DTC P0462 Fuel Level Sensor Circuit Low Voltage
- DTC P0463 Fuel Level Sensor Circuit High Voltage
- DTC P0500 Vehicle Speed Sensor (VSS) Circuit
- DTC P0502 Vehicle Speed Sensor (VSS) Circuit Low Input
- DTC P0503 Vehicle Speed Sensor (VSS) Circuit Intermittent
- DTC P0506 Idle Speed Low
- DTC P0507 Idle Speed High
- DTC P0601
- DTC P0602 Control Module Not Programmed
- DTC P0603 Control Module Long Term Memory Reset
- DTC P0604 Control Module Random Access Memory (RAM)
- DTC P0605 Control Module Programming Read Only Memory (ROM)
- DTC P0711 TFT Sensor Circuit Range/Performance
- DTC P0712 Transmission Fluid Temperature (TFT) Sensor Circuit Low Input
- DTC P0713 Transmission Fluid Temperature (TFT) Sensor Circuit High Input
- DTC P0719 Brake Switch Circuit Low Input
- DTC P0724 Brake Switch Circuit High Input
- DTC P0740 TCC Enable Solenoid Circuit Electrical
- DTC P0742 TCC System Stuck On
- DTC P0748 Pressure Control Solenoid Circuit Electrical
- DTC P0751 1-2 Shift Solenoid Valve Performance
- DTC P0753 1-2 Shift Solenoid Circuit Electrical
- DTC P0756 2-3 Shift Solenoid Valve Performance
- DTC P0758 2-3 Shift Solenoid Circuit Electrical
- DTC P0785 3-2 Shift Solenoid Circuit Electrical
- DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
- DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
- DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
- DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
- DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage
- DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage
- DTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage
- DTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage
- DTC P1133 HO2S Insufficient Switching Bank 1 Sensor 1
- DTC P1134 HO2S Transition Time Ratio Bank 1 Sensor 1
- DTC P1153 HO2S Insufficient Switching Bank 2 Sensor 1
- DTC P1154 HO2S Transition Time Ratio Bank 2 Sensor 1
- DTC P1336 Crankshaft Position (CKP) System Variation Not Learned
- DTC P1345 Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation
- DTC P1351 Ignition Coil Control Circuit High Voltage
- DTC P1361 Ignition Coil Control Circuit Low Voltage
- DTC P1380 Misfire Detected - Rough Road Data Not Available
- DTC P1381 Misfire Detected - No Communication with Brake Control Module
- DTC P1404 Exhaust Gas Recirculation (EGR) Closed Position Performance
- DTC P1415 Secondary Air Injection (AIR) System Bank 1
- DTC P1416 Secondary Air Injection (AIR) System Bank 2
- DTC P1441 Evaporative Emission (EVAP) System Flow During Non-Purge
- DTC P1508 Idle Speed Low - Idle Air Control (IAC) System Not Responding
- DTC P1509 Idle Speed High - Idle Air Control (IAC) System Not Responding
- DTC P1621 Control Module Long Term Memory Performance
- DTC P1626 Theft Deterrent Fuel Enable Signal Not Received
- DTC P1631 Theft Deterrent Start Enable Signal Not Correct
- DTC P1810 TFP Valve Position Switch Circuit
- DTC P1860 TCC PWM Solenoid Circuit Electrical
- DTC P1870 Transmission Component Slipping
- DTC P1875 4WD Low Switch Circuit Electrical
- DTC U1016 Loss of Class 2 Communication with VCM
- DTC U1016 Loss of Communications with PCM
- DTC U1026 Loss of ATC Class 2 Communication
- DTC U1041 Loss of EBCM Communication
- DTC U1192 Loss of VTD Class 2 Serial Data Com
- DTC U1255 Serial Data Line Malfunction
- DTC U1300 Class 2 Data Link Low
- DTC U1301 Class 2 Data Link High
- DTC U1500 Inter-Device Dedicated Bus Malfunction
