GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC B0001

Option Configuration Error

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 Malfunctions Present

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

Left Front/Driver Side Impact Sensor (SIS) Circuit

DTC B0100, B0101, or B0102

Electronic Front End Sensor 1 Performance

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 Circuit Range/Performance

DTC B0174

Output Air Temperature Sensor #1 Circuit Range/Performance

DTC B0179

Output Air Temperature Sensor #2 Circuit Range/Performance

DTC B0184 or B0189

Solar Load Sensor Circuit

DTC B0234

Air Mix Door #1 Range Error

DTC B0237

Air Mix Door #1 Inoperative

DTC B0249

Heater/Defrost/AC Door Range Error

DTC B0252

Heater/Defrost/AC Door Inoperative Error

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 B0490

Passenger Temperature Control Cooler/Warmer Switch Circuit Range

DTC B1000

ECU Malfunction

DTC B1001

Option Configuration Error

DTC B1004

Keep Alive Memory (KAM) Reset

DTC B1007

EPROM Read Write Error

DTC B1009

EEPROM Checksum Mismatch

DTC B1010

Ambient Temp Sensor Open or Shorted

DTC B1271

Theft Locked

DTC B1327

Device Power 1 Circuit Low

DTC B1390

Device Voltage Reference Input CKT Malf

DTC B1420

DTC B1422

Device Power Moding Error

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 B2455

Cellular Phone Microphone Circuit

DTC B2462

GPS Signal Error

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) Antenna Circuit

DTC B2556

Interior Lamp Rheostat Circuit Range

DTC B2641

Delayed Exterior Lighting Ctrl CKT Range

DTC B2646

Ambient Light Sensor Circuit Range

DTC B2734

EEPROM Checksum Mismatch

DTC B2757, B2762, B2767, or B2772

Memory Switch Circuit

DTC B2805

Steering Whl Controls HVAC Sw CKT Malf

DTC B2810

Steering Whl Ctrl Entertainment CKT Malf

DTC B2823 or B3574

Driver Information Center (DIC) Trip Switch Circuit

DTC B2838, B3564, B3569, or B3752

Driver Information Center (DIC) Switch Circuit

DTC B2947

Security System Sensor Power CKT Low

DTC B2948

Security System Sensor Power CKT High

DTC B2955

Security System Sensor Data CKT Malf

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 C1211

Valve Supply Voltage Interruption

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

LR Wheel Speed Sensor Signal Intermittent

DTC C1237

LR Wheel Speed Sensor Signal Missing

DTC C1238

Brake Thermal Model Exceeded

DTC C1241

RF Inlet Valve Circuit Malfunction

DTC C1242 or C1243

Pump Motor Circuit

DTC C1245

LF Inlet Valve Circuit Malfunction

DTC C1248

LF Isolation Valve Circuit Malfunction

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

Requested Torque Signal Circuit Malfunction

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 P0030

HO2S Heater Control Circuit Sensor 1

DTC P0036

HO2S Heater Control Circuit Sensor 2

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

TP Sensor Circuit Insufficient Activity

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 P0130 or P0150

HO2S Circuit

DTC P0131

HO2S Circuit Low Voltage Bank 1 Sensor 1

DTC P0131 or P0151

HO2S Circuit Low Voltage

DTC P0132

HO2S Circuit High Voltage Bank 1 Sensor 1

DTC P0132 or P0152

HO2S Circuit High Voltage

DTC P0133

HO2S Slow Response Bank 1 Sensor 1

DTC P0134

HO2S Circuit Insufficient Activity Bank 1 Sensor 1

DTC P0134 or P0154

HO2S Circuit Insufficient Activity

DTC P0135

HO2S Heater Performance Bank 1 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 P0153

HO2S Slow Response Bank 2 Sensor 1

DTC P0155

HO2S Heater Performance Bank 2 Sensor 1

DTC P0171

Fuel Trim System Lean Bank 1

DTC P0171 or P0174

Fuel Trim System Lean

DTC P0172

Fuel Trim System Rich Bank 1

DTC P0172 or P0175

Fuel Trim System Rich

DTC P0201-P0206

Injector Control Circuit

DTC P0201-P0208

Injector Control Circuit

DTC P0218

Transmission Fluid Overtemperature

DTC P0230

Fuel Pump Relay Control Circuit

DTC P0300

Engine Misfire Detected

DTC P0325

Knock Sensor Module Performance

DTC P0326

Knock Sensor CKT Excessive Spark Retard

DTC P0327

Knock Sensor Circuit Low Voltage

DTC P0335

Crankshaft Position (CKP) Sensor Circuit

DTC P0336

Crankshaft Position (CKP) Sensor Performance

DTC P0340

IC Module Cam Reference CKT No Frequency

DTC P0341

Camshaft Position (CMP) Sensor Performance

DTC P0351-P0358

Ignition Coil Control Circuit

DTC P0385

Crankshaft Position (CKP) Sensor B Circuit

DTC P0386

Crankshaft Position (CKP) Sensor B 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 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 P0461

Fuel Level Sensor Performance

DTC P0462

Fuel Level Sensor Circuit Low Voltage

DTC P0463

Fuel Level Sensor Circuit High Voltage

DTC P0480

Cooling Fan Relay 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 P0532

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Low Voltage

DTC P0533

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit High Voltage

DTC P0560

System Voltage

DTC P0562

System Voltage Low

DTC P0563

System Voltage High

DTC P0574

Vehicle Speed Too High - Cruise Control Disabled

DTC P0601

Control Module Read Only Memory (ROM)

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

ECU Malfunction

DTC P0602

Control Module Not Programmed

DTC P0615

Starter Relay Control Circuit

DTC P0620

Generator Performance

DTC P0621

Generator L-Terminal Circuit

DTC P0622

Generator F-Terminal Circuit

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 P0731

Incorrect 1st Gear Ratio

DTC P0732

Incorrect 2nd Gear Ratio

DTC P0733

Incorrect 3rd Gear Ratio

DTC P0734

Incorrect 4th 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 (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 P1031

HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1

DTC P1032

HO2S Heater Warm Up Control Circuit Banks 1 and 2 Sensor 1

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 P1133 or P1153

HO2S Insufficient Switching

DTC P1134

HO2S Transition Time Ratio Bank 1 Sensor 1

DTC P1134 or P1154

HO2S Transition Time Ratio

DTC P1258

Engine Coolant Overtemperature - Protection Mode Active

DTC P1336

Crankshaft Position (CKP) System Variation Not Learned

DTC P1351-P1366

Ignition Control (IC) Circuit High Voltage

DTC P1359

Ignition Coil Group 1 Control Circuit

DTC P1360

Ignition Coil Group 2 Control Circuit

DTC P1372

Crankshaft Position (CKP) Sensor A - B 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 P1415 or P1416

Secondary Air Injection (AIR) System

DTC P1441

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P1531

Air Conditioning (A/C) Evaporator Temperature Sensor Circuit

DTC P1536

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

DTC P1540

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

DTC P1545

Air Conditioning (A/C) Clutch Relay Control Circuit

DTC P1546

Air Conditioning (A/C) Clutch Relay Control Circuit Open

DTC P1554

Cruise Control Feedback Circuit

DTC P1560

Transaxle Not in Drive - Cruise Control Disabled

DTC P1564

Vehicle Acceleration Too High - Cruise Control Disabled

DTC P1566

Engine RPM Too High - Cruise Control Disabled

DTC P1567

Active Banking Control Active - Cruise Control Disabled

DTC P1570

Traction Control Active - Cruise Control Disabled

DTC P1574

Stoplamp Switch Circuit

DTC P1575

Extended Travel Brake Switch Circuit

DTC P1585

Cruise Control Inhibit Output Circuit

DTC P1617

Engine Oil Level Switch Circuit

DTC P1624

Customer Snapshot Requested - Data Available

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 P1633

Ignition 0 Switch Circuit

DTC P1634

Ignition 1 Switch Circuit

DTC P1635

5 Volt Reference 1 Circuit

DTC P1639

6 Volt Reference 2 Circuit

DTC P1640

Driver-1-Input High Voltage

DTC P1650

Control Module Output B Circuit

DTC P1660

Cooling Fan Control Circuits

DTC P1670

Control Module Output D Circuit

DTC P1683

Control Module Ignition Off Timer Performance

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 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 P1842

1-2 Shift Solenoid (SS) Control Circuit Low Voltage

DTC P1843

1-2 Shift Solenoid (SS) Control Circuit High Voltage

DTC P1845

Torque Limit Management

DTC P1847

2-3 Shift Solenoid (SS) Control Circuit High Voltage

DTC P1860

TCC PWM Solenoid Circuit Electrical

DTC P1868

Transmission Fluid Life

DTC P1887

Torque Converter Clutch (TCC) Release Switch Circuit

DTC U1000 and U1255

Class 2 Communication Malfunction

DTC U1001-U1254

Lost Communications With XXX

DTC U1161-U1163 or U1170

Lost Communications With XXX Door Module

DTC U1300, U1301, or U1305

Class 2 Data Link Shorted