GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC B1016

Passenger Deployment Loop Resistance Low

DTC B1017

Passenger Deployment Loop Open

DTC B1018

Passenger Deployment Loop Voltage Out of Range

DTC B1022

Driver Deployment Loop Resistance Low

DTC B1024

Driver Deployment Loop Voltage Out of Range

DTC B1026

Driver Deployment Loop Open

DTC B1051

Deployment Commanded

DTC B1053

Deployment Commanded w/Loop Malfunction

DTC B1061

Lamp Circuit Failure

DTC B1071

Internal SDM Failure

DTC C1212

Class 2 Data Link Low

DTC C1213

Class 2 Data Link High

DTC C1214

System Relay Contact or Coil Circuit Open

DTC C1215

Idle Up Circuit Malfunction

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 C1257

Accelerometer Circuit Malfunction

DTC C1258

4WD Switch Circuit Open

DTC C1261-C1268

EBCM Internal Solenoid Circuit

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 P0111

Intake Air Temperature (IAT) Sensor Performance

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

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 P0131

HO2S Circuit Low Voltage Sensor 1

DTC P0131 or P0151

HO2S Circuit Low Voltage

DTC P0132

HO2S Circuit High Voltage Sensor 1

DTC P0132 or P0152

HO2S Circuit High Voltage

DTC P0133

HO2S Slow Response Sensor 1

DTC P0133 or P0153

HO2S Slow Response

DTC P0134

HO2S Circuit Insufficient Activity Sensor 1

DTC P0134 or P0154

HO2S Circuit Insufficient Activity

DTC P0135

HO2S Heater Performance Sensor 1

DTC P0135 or P0155

HO2S Heater Performance

DTC P0136

HO2S Circuit Sensor 2

DTC P0136 or P0156

HO2S Circuit

DTC P0141

HO2S Heater Performance Sensor 2

DTC P0161

HO2S Heater Performance Bank 2 Sensor 2

DTC P0171

Fuel Trim System Lean

DTC P0172

Fuel Trim System Rich

DTC P0174

Fuel Trim System Lean Bank 2

DTC P0175

Fuel Trim System Rich Bank 2

DTC P0300

Engine Misfire Detected

DTC P0301-P0304

Engine Misfire Detected

DTC P0301-P0306

Engine Misfire Detected

DTC P0327

Knock Sensor (KS) Circuit

DTC P0328

Knock Sensor (KS) Circuit High Frequency

DTC P0335

Crankshaft Position (CKP) Sensor Circuit

DTC P0340

Camshaft Position (CMP) Sensor Circuit

DTC P0400

EGR Flow Malfunction

DTC P0403

Exhaust Gas Recirculation (EGR) Solenoid Control Circuit

DTC P0420

Catalyst System Low Efficiency

DTC P0420 or P0430

Catalyst System Low Efficiency

DTC P0440

Evaporative Emission (EVAP) System

DTC P0443

EVAP System Incorrect Purge Flow

DTC P0450

Fuel Tank Pressure Sensor Circuit

DTC P0451

Fuel Tank Pressure Sensor Performance

DTC P0455

Evaporative Emission (EVAP) System Leak Detected

DTC P0461

Fuel Level Sensor Performance

DTC P0463

Fuel Level Sensor Circuit High Voltage

DTC P0500

Vehicle Speed Sensor (VSS) Circuit

DTC P0505

Idle Control System

DTC P0601

Control Module Read Only Memory (ROM)

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

ECU Malfunction

DTC P0705

Trans Range Switch Circuit

DTC P0720

Output Speed Sensor Circuit

DTC P0741

TCC Solenoid Performance

DTC P0743

TCC Enable Solenoid Circuit Electrical

DTC P0751

Shift Solenoid #1 Performance

DTC P0753

Shift Solenoid #1 Electrical

DTC P0756

Shift Solenoid #2 Performance

DTC P0758

Shift Solenoid #2 Electrical

DTC P1408

Manifold Absolute Pressure (MAP) Sensor Circuit

DTC P1410

Fuel Tank Pressure Control Solenoid Control Circuit

DTC P1450

Barometric Pressure (BARO) Sensor Circuit

DTC P1451

Barometric Pressure (BARO) Sensor Performance

DTC P1500

Start Switch Circuit

DTC P1510

Control Module Long Term Memory Reset

DTC P1875

4 Wheel Drive Switch Circuit

DTC U1300

Class 2 Data Link Low

DTC U1301

Class 2 Data Link High