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 (Stage 1) Circuit

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

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

DTC B0051

Deployment Commanded

DTC B0053

Deployment Commanded with Loop Malfunctions Present

DTC B0057, B0058, or B0059

Right Front/Passenger Pretensioner Deployment Loop Circuit

DTC B0064, B0065, or B0066

Left Front/Driver Pretensioner Deployment Loop Circuit

DTC B0083 or B0084

Inflatable Restraint Seat Position Switch Circuit

DTC B0090

Active Switch Voltage Out of Range

DTC B0091

Active Switch Wrong State

DTC B0100, B0101, or B0102

Electronic Front End Sensor 1 Circuit

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 B1017

Driver Door Unlock Relay Control Circuit

DTC B1025, B1035, B1045, or B1055

Audio [+] Output Circuit

DTC B1372

Device Ignition 1 (ON and START) Circuit Low

DTC B1420

Device Voltage

DTC B1440

Power Mode Master Input Circuits Mismatch

DTC B1477 or B1478

Retained Accessory Power Circuit

DTC B1480

Battery Rundown Protection Circuit Malf

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 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 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 B3109

Keyless Entry Transmitter Low Battery

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 C0035 or C0040

Front Wheel Speed Sensor Circuit

DTC C0055 or P0609

Rear Wheel Speed Sensor Circuit

DTC C0110

Pump Motor Circuit

DTC C0161

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

DTC C0201

Antilock Brake System (ABS) Enable Relay Contact Circuit

DTC C0220 - C0229

Antilock Brake System (ABS) Channel in Release Too Long

DTC C0245

Wheel Speed Sensor Frequency Error

DTC C0550

ECU Malfunction

DTC P0016

Crankshaft Position (CKP)-Camshaft Position (CMP) 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 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 P0121

Accelerator Pedal Position (APP) Sensor 1 Circuit Performance

DTC P0122

Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

DTC P0123

Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

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, 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 P0171 or P0174

Fuel Trim System Lean

DTC P0172 or P0175

Fuel Trim System Rich

DTC P0200

Injector Control Circuit

DTC P0218

Transmission Fluid Overtemperature

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

Knock Sensor (KS) Circuit

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

Ignition Coil 1 Control Circuit

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 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 P0562

System Voltage Low

DTC P0563

System Voltage High

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

ECU Malfunction

DTC P0608

Vehicle Speed Output Circuit

DTC P0641

5 Volt Reference 1 Circuit

DTC P0650

Malfunction Indicator Lamp (MIL) Control Circuit

DTC P0651

5 Volt Reference 2 Circuit

DTC P0706

Transmission Range (TR) 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 P1121

Throttle Position (TP) Sensor Circuit Intermittent High Voltage

DTC P1122

Throttle Position (TP) Sensor Circuit Intermittent Low Voltage

DTC P1133 or P1153

HO2S Insufficient Switching

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 P1431

Fuel Level Sensor 2 Performance

DTC P1432

Fuel Level Sensor 2 Circuit Low Voltage

DTC P1433

Fuel Level Sensor 2 Circuit High Voltage

DTC P1626

Theft Deterrent Fuel Enable Signal Lost

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 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 U1500

Inter-device Dedicated Bus 1