GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC B0540

Speedometer Circuit

DTC B0560

Tachometer Circuit Range/Performance

DTC B1000

ECU Malfunction

DTC B1372

Device Ignition 1 Circuit Low

DTC B1440

Power Mode Master Input Circuits Mismatch

DTC B2745

Traction Control Switch Circuit

DTC C0035-C0052

Wheel Speed Sensor Circuit

DTC C0110

Pump Motor Circuit

DTC C0163 or C0164

Stop Lamp Switch Circuit

DTC C0220-C0229

EBCM Internal Solenoid Circuit

DTC C0267

Low Brake Fluid Indicated

DTC C0272

Base Brake Pump Motor Circuit

DTC C0285

Brake Fluid Flow Switch Circuit Low

DTC C0286

ABS Indicator Lamp Circuit Shorted to B+

DTC C0550

ECU Malfunction

DTC C0899

Device Voltage Low

DTC C0900

Device Voltage High

DTC P0087

Fuel Rail Pressure (FRP) Too Low

DTC P0088

Fuel Rail Pressure (FRP) Too High

DTC P0091

Fuel Pressure Regulator Solenoid 1 Control Circuit Low Voltage

DTC P0092

Fuel Pressure Regulator Solenoid 1 Control Circuit High Voltage

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 P0182

Fuel Temperature Sensor Circuit Low Voltage

DTC P0183

Fuel Temperature Sensor Circuit High Voltage

DTC P0190

Fuel Rail Pressure (FRP) Sensor Circuit

DTC P0192

Fuel Rail Pressure (FRP) Sensor Circuit Low Voltage

DTC P0193

Fuel Rail Pressure (FRP) Sensor Circuit High Voltage

DTC P0201-P0206

Injector Control Circuit

DTC P0219

Engine Overspeed

DTC P0234

Engine Overboost

DTC P0237

Turbocharger Boost Sensor Circuit Low Voltage

DTC P0238

Turbocharger Boost Sensor Circuit High Voltage

DTC P0263, P0266, P0269, P0272, P0275, or P0278

Cylinder Balance System

DTC P0299

Turbocharger Engine Underboost

DTC P0335

Crankshaft Position (CKP) Sensor Circuit

DTC P0382

Glow Relay Control Circuit

DTC P0385

Crankshaft Position (CKP) Sensor B Circuit

DTC P0461

Fuel Level Sensor Performance

DTC P0462

Fuel Level Sensor Circuit Low Voltage

DTC P0463

Fuel Level Sensor Circuit High Voltage

DTC P0512

Start Switch Circuit

DTC P0522

Engine Oil Pressure (EOP) Sensor Circuit Low Voltage

DTC P0523

Engine Oil Pressure (EOP) Sensor Circuit High Voltage

DTC P0562

System Voltage Low

DTC P0563

System Voltage High

DTC P0567

Cruise Control Resume Switch Circuit

DTC P0568

Cruise Control Set Switch Circuit

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

ECU Malfunction

DTC P0608

Vehicle Speed Output Circuit

DTC P0621

Generator L-Terminal Circuit

DTC P0622

Generator F-Terminal Circuit

DTC P0641

5 Volt Reference 1 Circuit

DTC P0651

5 Volt Reference 2 Circuit

DTC P0654

Engine Speed Output Circuit

DTC P1087

Fuel Rail Pressure (FRP) Trim Too Low

DTC P1088

Fuel Rail Pressure (FRP) Trim Too High

DTC P1125

Accelerator Pedal Position (APP) System

DTC P1261

Injector Positive Voltage Control Circuit

DTC P1263

Injector Positive Voltage Control Circuit Group 1 Low Voltage

DTC P1264

Injector Positive Voltage Control Circuit Group 1 High Voltage

DTC P1265

Injector Positive Voltage Control Circuit Group 2 Low Voltage

DTC P1266

Injector Positive Voltage Control Circuit Group 2 High Voltage

DTC P1270

Accelerator Pedal Position (APP) Sensor Analog to Digital Performance

DTC P1271

Accelerator Pedal Position (APP) Sensor 1-2 Correlation

DTC P1272

Accelerator Pedal Position (APP) Sensor 2-3 Correlation

DTC P1273

Accelerator Pedal Position (APP) Sensor 1-3 Correlation

DTC P1277

Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

DTC P1278

Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

DTC P1282

Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage

DTC P1283

Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage

DTC P1287

Accelerator Pedal Position (APP) Sensor 3 Circuit Low Voltage

DTC P1288

Accelerator Pedal Position (APP) Sensor 3 Circuit High Voltage

DTC P1291

Fuel Pressure Regulator Solenoid 2 Control Circuit Low Voltage

DTC P1292

Fuel Pressure Regulator Solenoid 2 Control Circuit High Voltage

DTC P1298

Fuel Pressure Regulator Solenoid Positive Voltage Control Circuit

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 P1643

Wait to Start Lamp Control Circuit

DTC P1646

5 Volt Reference 3 Circuit

DTC P2003

Mass Air Flow (MAF) Sensor Circuit High Voltage

DTC P2004

Mass Air Flow (MAF) Sensor Circuit Low Voltage

DTC P2005

Power Take Off (PTO) Accelerator Sensor Signal Voltage High

DTC P2007

Variable Nossle Turbocharger (VNT) Control Solenoid Valve Circuit High

DTC P2008

Intake Manifold Runner Control (IMRC) Solenoid Control Circuit

DTC P2011

Fuel Injector Supply Voltage 1 Circuit Open

DTC P2012

Fuel Injector Supply Voltage 2 Circuit Open

DTC P2564

Turbocharger Boost Control Position Sensor Circuit Low Voltage

DTC P2565

Turbocharger Boost Control Position Sensor Circuit High Voltage

DTC P2900

Variable Nozzle Turbocharger (VNT) Control Solenoid Valve Circuit

DTC P2901

Exhaust Gas Recirculation (EGR) Motor Position Circuit

DTC P2902

Exhaust Gas Recirculation (EGR) Open Position Performance

DTC P2903

Exhaust Gas Recirculation (EGR) Flow Insufficient

DTC P2920

Engine Controls Ignition Relay Feedback Circuit

DTC P2921

Fuel Rail Pressure (FRP) Too High

DTC P2922

Fuel Rail Pressure (FRP) Too High

DTC P2923

Fuel Rail Pressure Low During Power Enrichment

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 U2104

Controller Area Network (CAN) Bus Reset Counter Overrun

DTC U2106

Lost Communications With Transmission Control System

DTC U2108

Lost Communications With ABS/TCS Control System