GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC 023

DTC 024

DTC 063

DTC 064

DTC 065

DTC B0012, B0013, B0014, B0016, B0017, or B0018

Right Front/Passenger Frontal Deployment Loop (Stage 1) Circuit

DTC B0022, B0024, B0026, B0042, B0043, or B0044

Left Front/Driver Frontal Deployment Loop (Stage 1) Circuit

DTC B0028, B0029, or B0030

Right Front/Driver Side Deployment Loop Circuit

DTC B0040, B0041, or B0045

Left Front/Driver Side Deployment Loop Circuit

DTC B0051

Deployment Commanded

DTC B0053

Deployment Commanded with Loop Malfunctions Present

DTC B0077, B0078, B0079, B0080, B0081, or B0082

Left Front/Driver Frontal Deployment Loop (Stage 2) Open

DTC B0083 or B0084

Inflatable Restraint Seat Position Switch Circuit

DTC B0092

Suppression Sensor 1 Circuit Malfunction

DTC B0098

Automatic Occupant Sensing Controller ECU Malfunction

DTC B0100, B0101, B0102, B0103, B0104, or B0105

Electronic Frontal Sensor Circuit

DTC B0159

Outside Air Temperature Sensor Circuit Range/Performance

DTC B0164

Passenger Compartment Temperature Sensor #1 (Single Sensor or LH) Circuit Range/Performance

DTC B0169

Auxiliary Inside Air Temperature Sensor Circuit

DTC B0174, B0179, B0510, or B0515

Discharge Air Temperature Sensor Circuit

DTC B0183 or B0188

Sunload Sensor Circuit

DTC B0229, B0414, B0424, or B3770

HVAC Door Actuator Range/Performance

DTC B0263, B0268, B0408, or B0418

HVAC Door Actuator Circuit

DTC B0263, B0408, or B0418

HVAC Door Actuator Circuit

DTC B0283

Electric Rear Defrost Circuit

DTC B0414, B0424, or B3770

HVAC Door Actuator Range/Performance

DTC B0429 or B3531

Auxiliary HVAC Door Actuator Circuit

DTC B0434 or B3764

Auxiliary HVAC Door Actuator Range/Performance

DTC B0540

Speedometer Circuit

DTC B0560

Tachometer Circuit Range/Performance

DTC B0951

Headlamps On Indicator Circuit

DTC B1000

ECU Malfunction

DTC B1001

Option Configuration Error

DTC B1004

Keep Alive Memory (KAM) Reset

DTC B1007

EEPROM Write Error

DTC B1009

EEPROM Checksum Mismatch

DTC B1023

Integral Switch Performance

DTC B1025, B1035, B1045, or B1055

Audio [+] Output Circuit

DTC B1235

Amplifier On Signal Circuit

DTC B1259

Antenna Ground Circuit

DTC B1372

Device Ignition 1 (ON and START) Circuit Low

DTC B1375

Device Ignition 3 (ON) Circuit

DTC B1440

Power Mode Master Input Circuits Mismatch

DTC B1480

Battery Rundown Protection Circuit Malf

DTC B1544, B1600, or B1605

Mirror Motors Common Circuit

DTC B1580, B1590, B1610, or B1620

Mirror Position Sensor Circuit

DTC B1640 or B1645

Mirror Heater Circuit

DTC B1722

Mirror Power Fold Control Circuit

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, B1820, B1830, B1835, B1840, B1845, B1940, or B1945

Seat Switch Circuit

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

Seat Motor(s) Overcurrent

DTC B1825

Seat Recline Position Sensor Circuit

DTC B1850, B1860, B1960, B2355, B2365, or B2375

Seat Position Sensor Circuit

DTC B2425 or B2430

Seat Heater Circuit

DTC B2435 or B2440

Seat Back Heater Sensor Circuit

DTC B2455

Cellular Phone Microphone Circuit

DTC B2470

Cellular Phone Antenna Circuit

DTC B2476

Cellular Phone Select Service Switch Malfunction

DTC B2482

Cellular Phone Select Service Switch Range/Performance

DTC B2483 or B2484

Global Positioning System (GPS) Sensor Circuit

DTC B2527

Front Fog Lamp Circuit Low

DTC B2530

Front Foglamps Control Circuit

DTC B2540

Rear Foglamps Control Circuit

DTC B2550

Backup Lamps Control Circuit

DTC B2575

Headlamp Control Circuit

DTC B2580

Headlamp High Beam Control Circuit

DTC B2585

Parklamp Control Circuit Malfunction

DTC B2600

Daytime Running Lamp Control Circuit

DTC B2610

Passenger Compartment 1 Dimming Circuit

DTC B2615

Passenger Compartment Dimming 2 Circuit

DTC B2620

Display Dimming Pulse Width Modulation (PWM) Input Circuit

DTC B2625

Display Dimming Pulse Width Modulation (PWM) Output Circuit

DTC B2645

Ambient Light Sensor Circuit

DTC B2722

Trans Preference Switch Circuit Low

DTC B2734

EEPROM Checksum Mismatch

DTC B2752

Horn Relay Coil Circuit Low

DTC B2815

Steering Wheel Controls Illegal Resistance Value

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 B2961

Key In Ignition Circuit Malfunction

DTC B3031

Security System Controller in Learn Mode

DTC B3033

Security System Indicates Tamper

DTC B3055

No Transponder Modulation or No Transponder

DTC B3060

Unprogrammed Transponder Identification Code Received

DTC B3579 or B3584

Auxiliary Air Temperature Sensor Circuit Range/Performance

DTC B3593

Steering System Mode Switch Circuit

DTC B3604 or B3605

Adjustable Foot Pedal Switch Circuit

DTC B3606

Adjustable Foot Pedal Position Sensor Circuit

DTC B3801

Passenger Compartment Lamp Request Circuit

DTC B3802

Parklamps Request Circuit

DTC B3808

Rear Door Lock Relay Circuit

DTC B3809

Rear Door Unlock Relay Circuit

DTC B3819

Left Rear Window Up Control Circuit

DTC B3820

Left Rear Window Down Control Circuit

DTC B3821

Left Rear Window Relay Power Circuit

DTC B3822

Right Rear Window Up Control Circuit

DTC B3823

Right Rear Window Down Control Circuit

DTC B3824

Right Rear Window Relay Power Circuit

DTC B3935

Transponder Authentication Error

DTC B3941

Front Seat Heaters Circu

DTC B3962

Seat Motor(s) Overcurrent

DTC C0000

Vehicle Speed Information Circuit Malfunction

DTC C0035 or C0040

Front Wheel Speed Sensor Circuit

DTC C0045 or C0050

Rear Wheel Speed Sensor Circuit

DTC C0110

Pump Motor Circuit

DTC C0131

Antilock Brake System (ABS)/Traction Control System (TCS) Pressure Circuit

DTC C0161

Antilock Brake System (ABS)/Traction Control System (TCS) Brake Switch

DTC C0186

Lateral Accelerometer Circuit Malfunction

DTC C0196

Yaw Rate Circuit Malfunction

DTC C0201

Antilock Brake System (ABS) Enable Relay Contact Circuit

DTC C0220

Left Front Antilock Brake System (ABS) Channel in Release Too Long

DTC C0221-C0227 W/O JL4

Wheel Speed Sensor Circuit

DTC C0221-C0227 W JL4

Right Front Antilock Brake System (ABS) Channel in Release Too Long

DTC C0228

Left Rear Antilock Brake System (ABS) Channel in Release Too Long

DTC C0229 W/O JL4

Simultaneous Drop Out of Front Wheel Speed Signals

DTC C0229 W JL4

Right Rear Antilock Brake System (ABS) Channel in Release Too Long

DTC C0235-C0237 or P0609

Rear Wheel Speed Sensor Circuit

DTC C0238

Wheel Speed Mismatch

DTC C0240

Powertrain Control Module (PCM) Traction Control Not Allowed

DTC C0241-C0243

EBCM Malfunction

DTC C0244 W/O JL4

EBCM Malfunction

DTC C0244 W JL4

Pulse Width Modulated (PWM) Delivered Torque

DTC C0245 W/O JL4

EBCM Malfunction

DTC C0245 W JL4

Wheel Speed Sensor Frequency Error

DTC C0246-C0254

EBCM Malfunction

DTC C0253

Centering Fault

DTC C0265 or C0266

EBCM Relay Circuit

DTC C0267 or C0268

Pump Motor Circuit Open/Shorted

DTC C0269 or C0274

Excessive Dump/Isolation Time

DTC C0271-C0273, C0284

EBCM Malfunction

DTC C0279 W/O JL4

Powertrain Configuration Not Valid

DTC C0279 W JL4

Pre-charge Pump Circuit Performance

DTC C0281

Brake Switch Circuit

DTC C0283 W/O JL4

Traction Switch Circuit

DTC C0283 W JL4

VSES Switch Circuit

DTC C0287, P1644, or P1689

Delivered Torque Circuit

DTC C0290 or C0292 W/O JL4

Lost Communications With PCM

DTC C0290 or C0292 W JL4

VSES Combination Sensor Circuits

DTC C0291

Lost Communications With BCM

DTC C0297

Powertrain Configuration Data Not Received

DTC C0298 or P1571

Powertrain Indicated Traction Control Malfunction

DTC C0455

Front Steering Position Sensor Circuit

DTC C0472 or C0473

Steering Handwheel Speed Sensor Signal Circuit

DTC C0522

Rear Steering Position Sensor Circuit

DTC C0527

Rear Steering Motor Position Sensor Circuit

DTC C0532

Rear Steering Position and Motor Position Sensors Uncorrelated

DTC C0533

Rear Steering Motor Relay Circuit

DTC C0538

Rear Steering Motor Circuit

DTC C0543

Rear Steering Motor Position Error

DTC C0550

ECU Malfunction

DTC C0551

Option Configuration Error

DTC C0558

Calibration Data Not Programmed

DTC C0575, C0580, C0585, or C0590

Suspension Damper Solenoid Circuit

DTC C0615, C0620, C0625 or C0630

Suspension Position Sensor Circuit

DTC C0655

Level Control Compressor Circuit Malfunction

DTC C0660

Level Control Exhaust Valve Circuit Malfunction

DTC C0690

Damper Control Relay Circuit Malfunction

DTC C0711

Level Control Air Pressure Sensor Circuit Malfunction

DTC C0870

Device Voltage Reference Output # 1 Circuit Malfunction

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 P0116

Engine Coolant Temperature (ECT) Sensor Performance

DTC P0117

Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

DTC P0118

Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

DTC P0120

Throttle Position (TP) Sensor 1 Circuit

DTC P0125

Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control

DTC P0128

Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature

DTC P0131 or P0151

HO2S Circuit Low Voltage

DTC P0132 or P0152

HO2S Circuit High Voltage

DTC P0133 or P0153

HO2S Slow Response

DTC P0134 or P0154

HO2S Circuit Insufficient Activity

DTC P0135 or P0155

HO2S Heater Performance

DTC P0135, P0141, P0155, or P0161

HO2S Heater Performance

DTC P0137 or P0157

HO2S Circuit Low Voltage

DTC P0138 or P0158

HO2S Circuit High Voltage

DTC P0140 or P0160

HO2S Circuit Insufficient Activity

DTC P0141 or P0161

HO2S Heater Performance

DTC P0171 or P0174

Fuel Trim System Lean

DTC P0172 or P0175

Fuel Trim System Rich

DTC P0178

Fuel Composition Sensor Circuit Low Frequency

DTC P0179

Fuel Composition Sensor Circuit High Frequency

DTC P0200

Injector Control Circuit

DTC P0218

Transmission Fluid Overtemperature

DTC P0220

Throttle Position (TP) Sensor 2 Circuit

DTC P0230

Fuel Pump Relay Control Circuit

DTC P0300

Engine Misfire Detected

DTC P0315

Crankshaft Position (CKP) System Variation Not Learned

DTC P0325

Knock Sensor Module Performance

DTC P0327 or P0332

Knock Sensor Circuit

DTC P0335

Crankshaft Position (CKP) Sensor Circuit

DTC P0336

Crankshaft Position (CKP) Sensor Performance

DTC P0341

Camshaft Position (CMP) Sensor Performance

DTC P0342

Camshaft Position (CMP) Sensor Circuit Low Voltage

DTC P0343

Camshaft Position (CMP) Sensor Circuit High Voltage

DTC P0351-P0358

Ignition Coil Control Circuit

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 P0420 or P0430

Catalyst System Low Efficiency

DTC P0442

Evaporative Emission (EVAP) System Small Leak Detected

DTC P0443

Evaporative Emission (EVAP) Purge Solenoid Control Circuit

DTC P0446

Evaporative Emission (EVAP) Vent System Performance

DTC P0449

Evaporative Emission (EVAP) Vent Solenoid Control Circuit

DTC P0452

Fuel Tank Pressure Sensor Circuit Low Voltage

DTC P0453

Fuel Tank Pressure Sensor Circuit High Voltage

DTC P0455

Evaporative Emission (EVAP) System Large Leak Detected

DTC P0461

Fuel Level Sensor Performance

DTC P0462

Fuel Level Sensor Circuit Low Voltage

DTC P0463

Fuel Level Sensor Circuit High Voltage

DTC P0496

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P0502

Vehicle Speed Sensor (VSS) Circuit Low Input

DTC P0503

Vehicle Speed Sensor (VSS) Circuit Intermittent

DTC P0506

Idle Speed Low

DTC P0506 or P0507

Incorrect Idle Speed

DTC P0507

Idle Speed High

DTC P0522

Engine Oil Pressure (EOP) Switch Circuit Low Voltage

DTC P0523

Engine Oil Pressure (EOP) Sensor Circuit High Voltage

DTC P0530

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

DTC P0562

System Voltage Low

DTC P0563

System Voltage High

DTC P0567

Cruise Control Resume Switch Circuit

DTC P0568

Cruise Control Set Switch Circuit

DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

ECU Malfunction

DTC P0608

Vehicle Speed Output Circuit

DTC P0615

Starter Relay Control Circuit

DTC P0641

5 Volt Reference 1 Circuit

DTC P0650

Malfunction Indicator Lamp (MIL) Control Circuit

DTC P0651

5 Volt Reference 2 Circuit

DTC P0654

Engine Speed Output Circuit

DTC P0706

Trans Range Switch Performance

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 P0716

Input Speed Sensor Circuit Intermittent

DTC P0717

Input Speed Sensor Circuit Low Input

DTC P0719

Brake Switch Circuit Low Input

DTC P0724

Brake Switch Circuit High Input

DTC P0730

Incorrect Gear Ratio

DTC P0740

TCC Enable Solenoid Circuit Electrical

DTC P0741

TCC System Stuck Off

DTC P0742

TCC System Stuck On

DTC P0748

Pressure Control Solenoid Circuit Electrical

DTC P0751

1-2 Shift Solenoid Valve Performance

DTC P0752

1-2 Shift Solenoid (SS) Valve Performance - No Second Or Third Gear

DTC P0753

1-2 Shift Solenoid Circuit Electrical

DTC P0756

2-3 Shift Solenoid Valve Performance

DTC P0757

2-3 Shift Solenoid (SS) Valve Performance - No Third Or Fourth Gear

DTC P0758

2-3 Shift Solenoid Circuit Electrical

DTC P0785

3-2 Shift Solenoid Circuit Electrical

DTC P0894

Transmission Component Slipping

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 P1125

Accelerator Pedal Position (APP) System

DTC P1133 or P1153

HO2S Insufficient Switching

DTC P1172

Sec Fuel Pump Insufficient/No Fuel Flow

DTC P1258

Engine Coolant Overtemperature - Protection Mode Active

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 P1514

Throttle Body Performance

DTC P1515

Control Module Throttle Actuator Position Performance

DTC P1516

Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

DTC P1517

Throttle Actuator Control (TAC) Module Performance

DTC P1518

Throttle Actuator Control (TAC) Module Serial Data Circuit

DTC P1574

Stoplamp Switch Circuit

DTC P1626

Theft Deterrent Fuel Enable Signal Lost

DTC P1630

Theft Deterrent Learn Mode Active

DTC P1631

Theft Deterrent Start Enable Signal Not Correct

DTC P1637

Generator L-Terminal Circuit

DTC P1638

Generator F-Terminal Circuit

DTC P1810

TFP Valve Position Switch Circuit

DTC P1860

TCC PWM Solenoid Circuit Electrical

DTC P1875

4WD Low Switch Circuit Electrical

DTC P2066

Fuel Level Sensor 2 Performance

DTC P2067

Fuel Level Sensor 2 Circuit Low Voltage

DTC P2068

Fuel Level Sensor 2 Circuit High Voltage

DTC P2108

Throttle Actuator Control (TAC) Module Performance

DTC P2120

Accelerator Pedal Position (APP) Sensor 1 Circuit

DTC P2121

Accelerator Pedal Position (APP) Sensor 1 Performance

DTC P2125

Accelerator Pedal Position (APP) Sensor 2 Circuit

DTC P2135

Throttle Position (TP) Sensor 1-2 Correlation

DTC U1000 and U1255

Class 2 Communication Malfunction

DTC U1001-U1254

Loss of XXX Communications

DTC U1241

Lost Communications With Scan Tool

DTC U1300, U1301, or U1305

Class 2 Data Link Shorted

DTC U1305

Class 2 Data Link Low or High

DTC U1500

Communication (Front to Rear) State of Health