GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC B0005

In Park Switch Circuit Malfunction

DTC B0016, B0017, or B0018

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

DTC B0022, B0024, or B0026

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

DTC B0035

ADS Closed/Shorted to Ground

DTC B0036

ADS Open/Missing/Shorted to Battery

DTC B0051

Deployment Commanded

DTC B0053

Deployment Commanded with Loop Malfunctions Present

DTC B1000

ECU Malfunction

DTC B1001

Option Configuration Error

DTC B1007

EPROM Read Write Error

DTC B1009

EEPROM Checksum Mismatch

DTC B1025, B1035, B1045, or B1055

Audio Output Circuit

DTC B1328

Device Power Circuit High

DTC B1372

Device Ignition 1 (ON/START) Circuit Low

DTC B1382

Device Ignition ACC Circuit Low

DTC B1780

Theft Lock Enabled

DTC B2532

Front Fog Lamp Relay Out Short to Ground/Open

DTC B2533

Front Fog Lamp Relay Output Short to Bat

DTC B2558

Interior Lamp Control Output Short to Battery

DTC B2600

DRL Error

DTC B2601

DRL Stuck

DTC B2602

DRL Relay Output Short to Ground/Open

DTC B2603

DRL Relay Output Short to Battery

DTC B2624

Display Dimming PWM Input Circuit Open

DTC B2625

Display Dimming PWM Output Circuit Malfunction

DTC B2662

Park Lamp Switch Circuit Malfunction

DTC B2707

Gearshift Unlock Circuit Low

DTC B2708

Gearshift Unlock Circuit High

DTC B2752

Horn Relay Coil Circuit Low

DTC B2753

Horn Relay Coil Circuit High

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 B2965

Key In Ignition Fault

DTC B3031

Security System Controller in Learn Mode

DTC B3033

Security System Indicates Tamper

DTC B3127

Driver Door Unlock Output Short to GND

DTC B3132 or B3133

All Door Unlock Circuit

DTC B3137 or B3138

All Door Lock Circuit

DTC B3267

Decklid Relay Output Short to Ground/Open

DTC B3268

Decklid Relay Output Short to Battery

DTC C0267

Low Brake Fluid

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 C1242 or C1243

Pump Motor Circuit

DTC C1254

Abnormal Shutdown Detected

DTC C1255 or C1256

ECU Malfunction

DTC C1261-C1268

ECU Malfunction

DTC C1275

PCM Requested ETS to Be Disabled

DTC C1278

ETS Temporarily Inhibited By PCM

DTC C1295

Brake Lamp Switch Circuit Open

DTC P0105

Manifold Absolute Pressure (MAP) Sensor Performance/Range

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 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

O2S Circuit Closed Loop (CL) Performance Sensor 1

DTC P0131

O2S Circuit Low Voltage Sensor 1

DTC P0132

O2S Circuit High Voltage Sensor 1

DTC P0133

O2S Slow Response Sensor 1

DTC P0134

O2S 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-P0204

Injector Control Circuit

DTC P0218

Transmission Fluid Overtemperature

DTC P0300

Engine Misfire Detected

DTC P0301-P0304

Engine Misfire Detected

DTC P0325

Knock Sensor (KS) Circuit

DTC P0326

Knock Sensor (KS) Performance

DTC P0327

Knock Sensor (KS) Circuit

DTC P0336

Crankshaft Position (CKP) Sensor Performance

DTC P0340

CMP Sensor Circuit Low Input

DTC P0341

Camshaft Position (CMP) Sensor Performance

DTC P0420

Catalyst System Low Efficiency

DTC P0440

Evaporative Emission (EVAP) System

DTC P0442

Evaporative Emission (EVAP) System Small Leak Detected

DTC P0446

Evaporative Emission (EVAP) Vent System Performance

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 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 P0530

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

DTC P0562

System Voltage Low

DTC P0563

System Voltage High

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

ECU Malfunction

DTC P0621

Generator L-Terminal Circuit

DTC P0622

Generator F-Terminal Circuit

DTC P0705

Transmission Range Switch 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 (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 P1133

O2S Insufficient Switching Sensor 1

DTC P1137

HO2S Circuit Low Voltage During Power Enrichment Sensor 2

DTC P1138

HO2S Circuit High Voltage During Decel Fuel Cutoff Sensor 2

DTC P1171

Fuel System Lean During Acceleration

DTC P1336

Crankshaft Position (CKP) System Variation Not Learned

DTC P1441

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P1554

Cruise Control Feedback Circuit

DTC P1585

Cruise Control Inhibit Output Circuit

DTC P1626

Theft Deterrent Fuel Enable Signal Not Received

DTC P1630

Theft Deterrent Learn Mode Active

DTC P1631

Theft Deterrent Fuel Enable Signal Not Correct

DTC P1632

Theft Deterrent Fuel Disable Signal Received

DTC P1810

TFP Valve Position Switch Circuit

DTC P1811

Maximum Adapt and Long Shift

DTC P1860

TCC PWM Solenoid Circuit Electrical

DTC P1887

TCC Release Switch Circuit

DTC U1000 and U1255

Class 2 Communication Malfunction

DTC U1001-U1254

Lost Communications With XXX

DTC U1300, U1301, or U1305

Class 2 Data Link Shorted