GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC B0012

Right Front/Passenger Frontal Deployment Loop (Stage 2) Resistance Low

DTC B0013

Right Front/Passenger Frontal Deployment Loop (Stage 2) Open

DTC B0014

Right Front/Passenger Frontal Deployment Loop (Stage 2) Voltage Out of Range

DTC B0016

RF/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Resistance Low

DTC B0017

RF/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Open

DTC B0018

RF/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Short to Ground/Voltage Out of Range

DTC B0022

LF/Driver Frontal Deployment Loop (Single Stage or Stage 1) Resistance Low

DTC B0024

LF/Driver Frontal Deployment Loop (Single Stage or Stage 1) Short to Ground/Voltage Out of Range

DTC B0026

LF/Driver Frontal Deployment Loop (Single Stage or Stage 1) Open

DTC B0028

RF/Passenger Side Deployment Loop Resistance Low

DTC B0029

RF/Passenger Side Deployment Loop Open

DTC B0030

RF/Passenger Side Deployment Loop Short to Ground/Voltage Out of Range

DTC B0040

LF/Driver Side Deployment Loop Resistance Low

DTC B0041

LF/Driver Side Deployment Loop Open

DTC B0042

Left Front/Driver Frontal Deployment Loop (Stage 2) Resistance Low

DTC B0043

Left Front/Driver Frontal Deployment Loop (Stage 2) Voltage Out of Range

DTC B0044

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

DTC B0045

LF Side Deploy Loop Short to Ground/Voltage Out of Range

DTC B0051

Deployment Commanded

DTC B0053

Deployment Commanded with Loop Malfunctions Present

DTC B0077

LF/Driver SIS Malfunction

DTC B0078

RF/Passenger SIS Malfunction

DTC B0079

Incorrect LF/Driver SIS Installed

DTC B0080

Discard LF/Driver SIS

DTC B0081

Incorrect RF/Passenger SIS Installed

DTC B0082

Discard RF/Passenger SIS

DTC B0100

Electronic Front End Sensor 1 Performance

DTC B0101

Discard Electronic Front End Sensor 1

DTC B0102

Incorrect Electronic Front End Sensor 1 Installed

DTC B0126

Right Panel Discharge Sensor Fault

DTC B0131

Right Heater Discharge Sensor Fault

DTC B0159

Outside Air Temperature Sensor Circuit Range/Performance

DTC B0164

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

DTC B0174

Output Air Temperature Sensor #1 (Upper; Single or LH) Circuit Range/Performance

DTC B0179

Output Air Temperature Sensor #2 (Lower; Single or LH) Circuit Range/Performance

DTC B0184 or B0189

Solar Load Sensor Circuit Range/Performance

DTC B0233

Air Mix Door Circuit Range

DTC B0234

Air Mix Door #1 Range Error

DTC B0237

Air Mix Door #1 Inoperative

DTC B0238

Mode Door Circuit Range

DTC B0249

Heater/Defrost/AC Door Range Error

DTC B0252

Heater/Defrost/AC Door Inoperative Error

DTC B0268

Air Inlet Door Circuit Range

DTC B0269

Air Inlet Door Range Error

DTC B0272

Air Inlet Door Inoperative

DTC B0279

Air Mix Door #2 Range Error

DTC B0282

Air Mix Door #2 Inoperative

DTC B1000

ECU Malfunction

DTC B1001

Option Configuration Error

DTC B1004

Keep Alive Memory (KAM)

DTC B1007

EEPROM Write Error

DTC B1009

EEPROM Checksum Error

DTC B1010

Calibration ROM Checksum Error

DTC B1327

Device Power Circuit Low

DTC B1390

Device Voltage Reference Input CKT Malf

DTC B1422

Device Power Moding Malfunction

DTC B1513

Charging System Volts Low

DTC B1514

Charging System Volts High

DTC B1562, B1567, B1572, or B1577

Mirror Switch Circuit

DTC B1582, B1583, B1592, B1593, B1612, B1613, B1622, or B1623

Mirror Position Sensor Circuit

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

Power Seat Switch Circuit

DTC B1780

Theft Lock Enabled

DTC B1825, B1850, B1860, B2355, B2365, or B2375

Power Seat Position Sensor Circuit

DTC B1826, B1851, B1861, B2356, B2366, or B2376

Power Seat Sensor Circuit Range Performance

DTC B2462

GPS Signal Error

DTC B2476

Cellular Phone Select Service Switch Malfunction

DTC B2556

Interior Lamp Rheostat Circuit Range

DTC B2627

Pass Compartment Dimming #2 Circuit Low

DTC B2628

Pass Compartment Dimming #2 Circuit High

DTC B2641

Delayed Exterior Lighting Ctrl CKT Range

DTC B2642

Delayed Exterior Lighting Ctrl CKT Low

DTC B2643

Delayed Exterior Lighting Ctrl CKT High

DTC B2646

Ambient Light Sensor Circuit Range

DTC B2647

Ambient Light Sensor Circuit Low

DTC B2648

Ambient Light Sensor Circuit High

DTC B2657

Ignition Halo Lamp Output Circuit Malf

DTC B2734

Coded Key Controller Memory Failure

DTC B2757, B2762, B2767, or B2772

Memory Switch Circuit

DTC B2810

Steering Whl Ctrl Entertainment CKT Malf

DTC B2818

Low Tire Pressure System Reset Circuit Low

DTC B2823, B2838, B2843, B3564, or B3569

Driver Information Center (DIC) Switch Circuit

DTC B2947

Antenna Power Short to Ground

DTC B2948

Antenna Power Short to Battery

DTC B2955

Key Code Input Short to Battery or Open

DTC B2960

Invalid Coded Key Present

DTC B3031

Key Decoder Device in Assem Learn Mode

DTC B3055

Key Not Present

DTC B3109

Keyless Entry Transmitter Low Battery

DTC B3142, B3147, B3152, or B3157

Door Lock Switch Circuit

DTC B3172, B3177, B3182, B3187, B3192, B3197, B3282, B3287, or B3292

Window Switch Circuit

DTC B3377, B3382, B3387, B3392, B3397, B3452, B3457, B3462, B3467, B3472, B3477, B3482, B3517, or B3522

Master Window Switch Circuit

DTC B3527

Window Lockout Switch Circuit Low

DTC B3793

Seat Motor(s) Overcurrent

DTC C0625

Level Control Suspension Sensor Malfunction

DTC C0628

Level Control Position Sensor Circuit High

DTC C0660

Level Control Exhaust Valve Circuit Malfunction

DTC C0663

Level Control Exhaust Valve Circuit High

DTC C0697

Level Control Accy Inflator Switch Malfunction

DTC C1211

ABS Indicator Lamp Circuit Malfunction

DTC C1214

System Relay Contact or Coil Circuit Open

DTC C1217

Pump Motor Shorted to Ground

DTC C1218

Pump Motor Circuit Shorted to Voltage or Motor Ground Open

DTC C1221-C1235

Wheel Speed Sensor Circuit

DTC C1236

Low System Supply Voltage

DTC C1237

High System Supply Voltage

DTC C1238

Brake Thermal Model Exceeded

DTC C1241

Variable Effort Steering Circuit Malfunction

DTC C1242 or C1243

Pump Motor Circuit

DTC C1245

Low Tire Pressure Detected

DTC C1248

EBCM Turned the Red Brake Warning Indicator On

DTC C1254

Abnormal Shutdown Detected

DTC C1255 or C1256

ECU Malfunction

DTC C1261-C1274

EBCM Internal Solenoid Circuit

DTC C1276, P1644, or P1689

Delivered Torque Circuit

DTC C1277 or P1571

Powertrain Indicated Traction Control Malfunction

DTC C1278

TCS Temporarily Inhibited By PCM

DTC C1281, C1283, or C1286

VSES Sensors Uncorrected

DTC C1282

Yaw Rate Sensor Bias Circuit Malfunction

DTC C1284 or C1285

Lateral Accelerometer Circuit

DTC C1287 or C1288

Steering Position Sensor Circuit

DTC C1291 or C1293

Brake Switch Circuit

DTC C1294

Brake Lamp Switch Circuit Always Active

DTC C1295

Brake Lamp Switch Circuit Open

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 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 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 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 P0230

Fuel Pump Relay Control Circuit

DTC P0243

Supercharger Boost Solenoid Control Circuit

DTC P0300

Engine Misfire Detected

DTC P0325

Knock Sensor (KS) Circuit

DTC P0327 or P0332

Knock Sensor Circuit

DTC P0336

Crankshaft Position (CKP) Sensor Circuit

DTC P0341

Camshaft Position (CMP) Sensor Performance

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 P0410

Secondary Air Injection (AIR) System

DTC P0412

Secondary Air Injection (AIR) Solenoid Control Circuit

DTC P0418

Secondary Air Injection (AIR) Pump Relay Control Circuit

DTC P0420

Catalyst System Low Efficiency

DTC P0440

Evaporative Emission (EVAP) System

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 P0462

Fuel Level Sensor Circuit Low Voltage

DTC P0463

Fuel Level Sensor Circuit High Voltage

DTC P0480

Cooling Fan Relay 1 Control Circuit

DTC P0481

Cooling Fan Relay 2 Control 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 P0522

Engine Oil Pressure (EOP) Sensor Circuit Low Voltage

DTC P0523

Engine Oil Pressure (EOP) Sensor Circuit High Voltage

DTC P0530

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

DTC P0560

System Voltage

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

ECU Malfunction

DTC P0620

Generator Performance

DTC P0650

Malfunction Indicator Lamp (MIL) Control Circuit

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 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 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 Valve Performance - No Third or Fourth Gear

DTC P0758

2-3 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 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 Sensor 1

DTC P1134

HO2S Transition Time Ratio Sensor 1

DTC P1336

Crankshaft Position (CKP) System Variation Not Learned

DTC P1351

Ignition Coil Control 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 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 P1441

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P1536

Engine Coolant Overtemperature - Air Conditioning (A/C) Disabled

DTC P1540

Air Conditioning (A/C) Refrigerant Overpressure - Air Conditioning (A/C) Disabled

DTC P1546

Air Conditioning (A/C) Clutch Relay Control Circuit

DTC P1554

Cruise Control Feedback Circuit

DTC P1575

Extended Travel Brake Switch Circuit

DTC P1585

Cruise Control Inhibit Output 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 P1635

5 Volt Reference 1 Circuit

DTC P1639

5 Volt Reference 2 Circuit

DTC P1640

Control Module Output A Circuit

DTC P1650

Control Module Output B Circuit

DTC P1660

Control Module Output C Circuit

DTC P1670

Control Module Output D Circuit

DTC P1810

TFP Valve Position Switch Circuit

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 Circuit A Low

DTC P1822

Internal Mode Switch Circuit B High

DTC P1823

Internal Mode Switch Circuit P Low

DTC P1825

Internal Mode Switch - Invalid Range

DTC P1826

Internal Mode Switch Circuit C High

DTC P1860

TCC PWM Solenoid Circuit Electrical

DTC P1887

TCC Release Switch Circuit

DTC U1000 and U1255

Class 2 Communication Malfunction

DTC U1001-U1254

Loss of XXX Communications

DTC U1161-U1163 or U1170

Lost Communications With XXX Door Module

DTC U1300

Class 2 Data Link Low

DTC U1301

Class 2 Data Link High

DTC U1305

Class 2 Data Link Low or High

DTC U1450

Lost Communications With Compass

DTC U1500

Inter-Device Dedicated Bus Malfunction