GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

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

Right Front/Passenger Frontal Deployment Loop Circuit

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

Left Front/Driver Frontal Deployment Loop 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 Faults Present

DTC B0057, B0058, or B0059

Right Front Pretensioner Deployment Loop Circuit

DTC B0064, B0065, or B0066

Left Front Pretensioner Deployment Loop Circuit

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

Left Front/Driver Side Impact Sensor (SIS) Circuit

DTC B0103, B0104, or B0105

Electronic Front End Sensor 2 Circuit

DTC B0248, B0268, or B0418

HVAC Actuator Stuck

DTC B0249, B0269, or B0419

HVAC Actuator Circuit Range/Performance

DTC B0283

Electric Rear Defrost Circuit

DTC B0424, B3748, or B3749

HVAC Actuator Feedback Circuit Range/Performance

DTC B0931

Compass Sensor Circuit

DTC B1000

ECU Malfunction

DTC B1001

Option Configuration Error

DTC B1004

Loss of Keep Alive Memory

DTC B1007

EEPROM Write Error

DTC B1009

EEPROM Checksum Error

DTC B1013

Calibration Read Only Memory (ROM) Checksum Error

DTC B1025, B1035, B1045, or B1055

Audio Output Circuit

DTC B1259

Antenna Circuit

DTC B1327

Device Power Circuit Low

DTC B1370

Device Ignition 1 Circuit

DTC B1380

Device Ignition 3 Circuit

DTC B1385

Device Ignition CRANK Circuit

DTC B1390

Device Voltage Reference Input Circuit

DTC B1420

Device Voltage

DTC B1428

Ignition 1 Relay Circuit

DTC B1475

Retained Accessory Power Circuit

DTC B1780

Theft Lock Enabled

DTC B1920 or B2165

Seat Heater Timer Circuit

DTC B1925 or B2170

Seat Heater Sensor Circuit

DTC B2455

Cellular Phone Microphone Circuit

DTC B2470

Cellular Phone Antenna Circuit

DTC B2476

Cellular Phone Select Service Switch

DTC B2482

Cellular Phone Select Service Switch Range/Performance

DTC B2483 or B2484

Global Positioning System (GPS) Sensor Circuit

DTC B2508 or B2509

Seat Heater Relay Circuit

DTC B2525

Front Foglamps Circuit

DTC B2545

Backup Lamps Circuit

DTC B2580

Headlamp High Beam Control Circuit

DTC B2610

Passenger Compartment Dimming Circuit

DTC B2645

Ambient Light Sensor Circuit High

DTC B2705

Gearshift Unlock Circuit

DTC B2750

Horn Relay Coil Circuit

DTC B2960

Invalid Coded Key Is Present

DTC B3031

Key Decoder Device in Assembly Learn Mode

DTC B3055

Key Not Present

DTC B3101

Keyless Entry Data Link Circuit Range/Performance

DTC B3102

Keyless Entry Data Link Circuit Low

DTC B3103

Keyless Entry Data Link Circuit High

DTC B3106

Keyless Entry Data Link Parity Error

DTC B3445

Stoplamp Circuit

DTC B3619

Head Up Display (HUD) Change Page Switch Circuit

DTC B3620

Head Up Display (HUD) Information Up Switch Circuit

DTC B3621

Head Up Display (HUD) Information Down Switch Circuit

DTC B3634

Head Up Display (HUD) Dimming (Up or generic) Switch Circuit

DTC B3838

Parklamp Signal Circuit

DTC B3873

Front Washer Relay Circuit

DTC B3874

Wiper Low Speed Relay Circuit

DTC B3875

Wiper High Speed Relay Circuit

DTC B3922

Front Wiper Function Select Circuit

DTC B3948

Left Front Turn Signal Circuit

DTC B3949

Right Front Turn Signal Circuit

DTC B3950

Left Rear Turn Signal Circuit

DTC B3951

Right Rear Turn Signal Circuit

DTC C0035-C0051

Wheel Speed Sensor Circuit

DTC C0060-C0095

EBCM Internal Solenoid Circuit

DTC C0110

Pump Motor Malfunction

DTC C0121

Valve Relay Circuit Malfunction

DTC C0131

Antilock Brake System (ABS) Pressure Circuit

DTC C0132

Antilock Brake System (ABS) Pressure Circuit Range/Performance

DTC C0141-C0156

EBCM Internal Solenoid Circuit

DTC C0161

ABS/TCS Brake Switch Circuit Malfunction

DTC C0186

Lateral Accelerometer Circuit

DTC C0187

Lateral Accelerometer Circuit Range/Performance

DTC C0196

Yaw Rate Circuit

DTC C0197

Yaw Rate Circuit Range/Performance

DTC C0236

Traction Control System (TCS) Engine RPM Signal Circuit

DTC C0240

PCM Traction Control Not Allowed

DTC C0241 or P1571

PCM Indicated Requested Torque Malfunction

DTC C0244 or P1689

PWM Delivered Torque Malfunction

DTC C0245

Wheel Speed Sensor Frequency Error

DTC C0252

Vehicle Stability Enhancement System (VSES) Sensors Uncorrelated

DTC C0253

Centering Error

DTC C0277

Brake Pedal Position Sensor Circuit

DTC C0278

Brake Pedal Position Sensor Not Calibrated

DTC C0283

Brake Pedal Position Sensor Circuit Low

DTC C0450

Steering Assist Control Actuator Circuit

DTC C0550

ECU Malfunction

DTC C0710

Steering Position Signal

DTC C0870

Device Voltage Reference Output Circuit

DTC C0875

Device Voltage Reference Input 2 Circuit

DTC C0896

Device Voltage Range Performance

DTC P0030

HO2S Heater Control Circuit Sensor 1

DTC P0036

HO2S Heater Control Circuit Sensor 2

DTC P0068

Throttle Body Airflow Performance

DTC P0069

Manifold Absolute Pressure Barometric Pressure Correlation

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 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 Circuit

DTC P0125

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

DTC P0128

Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature

DTC P0130

HO2S Circuit Closed Loop (CL) Performance Sensor 1

DTC P0131

HO2S Circuit Low Voltage Sensor 1

DTC P0132

HO2S Circuit High Voltage Sensor 1

DTC P0133

HO2S Slow Response Sensor 1

DTC P0134

HO2S Circuit Insufficient Activity Sensor 1

DTC P0135

HO2S Heater Performance Sensor 1

DTC P0136

HO2S Circuit Sensor 2

DTC P0137

HO2S Circuit Low Voltage Sensor 2

DTC P0138

HO2S Circuit High Voltage Sensor 2

DTC P0140

HO2S Circuit Insufficient Activity Sensor 2

DTC P0141

HO2S Heater Performance Sensor 2

DTC P0171

Fuel Trim System Lean

DTC P0172

Fuel Trim System Rich

DTC P0201-P0206

Injector Control Circuit

DTC P0218

Transmission Fluid Overtemperature

DTC P0220

Throttle Position (TP) Sensor 2 Circuit

DTC P0230

Fuel Pump Relay Control Circuit

DTC P0243

Turbocharger Wastegate Solenoid Control Circuit

DTC P0300

Engine Misfire Detected

DTC P0315

Crankshaft Position (CKP) System Variation Not Learned

DTC P0325

Knock Sensor (KS) Module Performance

DTC P0327 or P0332

Knock Sensor (KS) Circuit Low Voltage

DTC P0336

Crankshaft Position (CKP) Sensor Circuit

DTC P0341

Camshaft Position (CMP) Sensor Circuit

DTC P0401

Exhaust Gas Recirculation (EGR) Flow Insufficient

DTC P0403

Exhaust Gas Recirculation (EGR) Solenoid Control Circuit

DTC P0404

Exhaust Gas Recirculation (EGR) Open Position Performance

DTC P0405

Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage

DTC P0420

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 (FTP) Sensor Circuit Low Voltage

DTC P0453

Fuel Tank Pressure (FTP) Sensor Circuit High Voltage

DTC P0455

Evaporative Emission (EVAP) System Large Leak Detected

DTC P0462

Fuel Level Sensor Circuit Low Voltage

DTC P0463

Fuel Level Sensor Circuit High Voltage

DTC P0480 or P0481

Cooling Fan Relay Control Circuit

DTC P0496

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P0502

Vehicle Speed Sensor (VSS) Circuit Low Voltage

DTC P0503

Vehicle Speed Sensor (VSS) Circuit Intermittent

DTC P0506

Idle Speed Low

DTC P0507

Idle Speed High

DTC P0520

Engine Oil Pressure (EOP) Sensor Circuit

DTC P0530

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

DTC P0560

System Voltage

DTC P0564

Cruise Control Multi-Function Switch Circuit

DTC P0572

Cruise Control Brake Switch Circuit Low Voltage

DTC P0573

Cruise Control Brake Switch Circuit High Voltage

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

ECU Malfunction

DTC P0608

Vehicle Speed Output Circuit

DTC P0620

Generator Performance

DTC P0641

5 Volt Reference Circuit

DTC P0645

Air Conditioning (A/C) Clutch Relay Control Circuit

DTC P0650

Malfunction Indicator Lamp [MIL] Control Circuit

DTC P0651

5 Volt Reference 2 Circuit

DTC P0685

Engine Controls Ignition Relay Control Circuit

DTC P0703

Brake Switch Circuit

DTC P0711

Transmission Fluid Temperature (TFT) Sensor Performance

DTC P0712

Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage

DTC P0713

Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

DTC P0716

Input Speed Sensor Performance

DTC P0717

Input Speed Sensor Circuit Low Voltage

DTC P0730

Incorrect Gear Ratio

DTC P0741

Torque Converter Clutch (TCC) System - Stuck Off

DTC P0742

Torque Converter Clutch (TCC) System - Stuck On

DTC P0748

Pressure Control (PC) Solenoid Control Circuit

DTC P0751

1-2 Shift Solenoid Valve Performance - No First or Fourth Gear

DTC P0752

1-2 Shift Solenoid Valve Performance - No Second or Third Gear

DTC P0753

1-2 Shift Solenoid Control Circuit

DTC P0756

2-3 Shift Solenoid Valve Performance - No First or Second Gear

DTC P0757

2-3 Shift Solenoid Valve Performance - No Third or Fourth Gear

DTC P0758

2-3 Shift Solenoid Control Circuit

DTC P0815

Upshift Switch Circuit

DTC P0816

Downshift Switch Circuit

DTC P0826

Up and Down Shift Switch Circuit

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

HO2S Insufficient Switching Sensor 1

DTC P1134

HO2S Transition Time Ratio Sensor 1

DTC P1258

Engine Coolant Overtemperature - Protection Mode Active

DTC P1351

Ignition Control (IC) Circuit High Voltage

DTC P1352

Ignition Bypass Circuit High Voltage

DTC P1361

Ignition Control (IC) Circuit Low Voltage

DTC P1362

Ignition Bypass Circuit Low Voltage

DTC P1374

Crankshaft Position (CKP) High to Low Resolution Frequency Correlation

DTC P1404

Exhaust Gas Recirculation (EGR) Closed Position Performance

DTC P1516

Throttle Actuator Control (TAC) Module Throttle Actuator Position 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 Fuel Enable Signal Not Correct

DTC P1640

Control Module Output A Circuit

DTC P1650

Control Module Output B Circuit

DTC P1660

Control Module Output C Circuit

DTC P1750

1-2 Shift Valve Performance

DTC P1811

Maximum Adapt and Long Shift

DTC P1814

Torque Converter Overstressed

DTC P1819

Internal Mode Switch-No Start/Wrong Range

DTC P1820

Internal Mode Switch A Circuit Low Voltage

DTC P1822

Internal Mode Switch B Circuit High Voltage

DTC P1823

Internal Mode Switch P Circuit Low Voltage

DTC P1825

Internal Mode Switch-Invalid Range

DTC P1826

Internal Mode Switch C Circuit High Voltage

DTC P1860

Torque Converter Clutch (TCC) PWM Solenoid Control Circuit

DTC P1887

Torque Converter Clutch (TCC) Release Switch Circuit

DTC P2101

Control Module Throttle Actuator Position Performance

DTC P2107

Throttle Actuator Control (TAC) Module Internal Circuit

DTC P2108

Throttle Actuator Control (TAC) Module Performance

DTC P2119

Throttle Closed Position Performance

DTC P2120

Accelerator Pedal Position (APP) Sensor 1 Circuit

DTC P2125

Accelerator Pedal Position (APP) Sensor 2 Circuit

DTC P2135

Throttle Position (TP) Sensor 1-2 Correlation

DTC P2138

Accelerator Pedal Position (APP) Sensor 1-2 Correlation

DTC P2227

Barometric Pressure (BARO) Sensor Performance

DTC P2228

Barometric Pressure (BARO) Sensor Circuit Low Voltage

DTC P2229

Barometric Pressure (BARO) Sensor Circuit High Voltage

DTC P2535

Ignition 1 Switch Circuit High Voltage

DTC U1000 and U1255

Class 2 Communication Malfunction

DTC U1001-U1254

Lost Communication with XXX

DTC U1300, U1301, or U1305

Class 2 Data Link Shorted

DTC U1450

Lost Communications With Compass

DTC U1500

Inter-Device Dedicated Bus Malfunction

DTC U1650

Chassis System Dedicated Bus Controller

DTC U1651

Chassis System Dedicated Bus Sensor