GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC B0012

RF/Passenger Frontal Deployment Loop (Stage 2) Resistance Low

DTC B0013

RF/Passenger Frontal Deployment Loop (Stage 2) Open

DTC B0014

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

DTC B0016

Passenger Frontal Deployment Loop (Stage 1) Resistance Low

DTC B0017

Passenger Frontal Deployment Loop (Stage 1) Open

DTC B0018

Passenger Frontal Deployment Loop (Stage 1) Voltage Out of Range

DTC B0022

Driver Frontal Deployment Loop (Stage 1) Resistance Low

DTC B0024

Driver Frontal Deployment Loop (Stage 1) Voltage Out of Range

DTC B0026

Driver Frontal Deployment Loop (Stage 1) Open

DTC B0028

Right Curtain Deployment Loop Resistance Low

DTC B0029

Right Curtain Deployment Loop Open

DTC B0030

Right Curtain Deployment Loop Out of Range

DTC B0040

Left Curtain Deployment Loop Resistance Low

DTC B0041

Left Curtain Deployment Loop Open

DTC B0042

LF/Driver Frontal Deployment Loop (Stage 2) Resistance Low

DTC B0043

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

DTC B0044

LF/Driver Frontal Deployment Loop (Stage 2) Open

DTC B0045

Left Curtain Deployment Loop Out of Range

DTC B0051

Deployment Commanded

DTC B0053

Deployment Commanded With Loop Malfunction Present

DTC B0055

Passenger Pretensioner Suppressed

DTC B0057

Passenger Pretensioner Deployment Loop Resistance Low

DTC B0058

Passenger Pretensioner Deployment Loop Resistance Open

DTC B0059

Passenger Pretensioner Deployment Loop Voltage Out of Range

DTC B0064

Driver Pretensioner Deployment Loop Resistance Low

DTC B0065

Driver Pretensioner Deployment Loop Open

DTC B0066

Driver Pretensioner Deployment Loop Voltage Out of Range

DTC B0077

Left SIS Malfunction

DTC B0078

Right SIS Malfunction

DTC B0079

Incorrect Left SIS Installed

DTC B0080

Discard Left SIS

DTC B0081

Incorrect Right SIS Installed

DTC B0082

Discard Right SIS

DTC B0083

RF/Passenger Seat Position Sensor Circuit

DTC B0084

LF/Driver Seat Position Sensor Circuit

DTC B0100

Electronic Front End Sensor 1 Malfunction

DTC B0101

Discard Electronic Front End Sensor 1

DTC B0102

Incorrect Electronic Front End Sensor 1 Installed

DTC B0285

Electric Rear Defrost Circuit Low

DTC B0287

Electric Rear Defrost Circuit Open

DTC B1000

ECU Malfunction

DTC B1000

Electronic Control Unit (ECU) Performance

DTC B1001

Option Configuration Error

DTC B1001

Option Configuration Error

DTC B1001

Option Configuration Error

DTC B1015

VIN Information Error

DTC B1327

Device Power 1 Circuit Low

DTC B1328

Device Power 1 Circuit High

DTC B1373

Device Ignition 1 Circuit High

DTC B1374

Device Ignition 1 Circuit Open

DTC B1383

Device Ignition ACCESSORY Circuit High

DTC B1384

Device Ignition ACCESSORY Circuit Open

DTC B1441

Device Ignition OFF, RUN, and CRANK Circuit Low

DTC B1443

Device Ignition OFF, RUN, and CRANK Circuit High

DTC B1482

Battery Rundown Protection Circuit Low

DTC B2532

Front Foglamps Control Circuit Low

DTC B2534

Front Foglamps Control Circuit Open

DTC B2558

Passenger Compartment Lamp Control Circuit High

DTC B2613

Passenger Compartment Dimming 1 Circuit High

DTC B2627

Display Dimming Pulse Width Modulation (PWM) Output Circuit Low

DTC B2647

Ambient Light Sensor Circuit Low

DTC B2648

Ambient Light Sensor Circuit High

DTC B2707

Gearshift Unlock Circuit Low

DTC B2709

Gearshift Unlock Circuit Open

DTC B2957

Security System Sensor Data Circuit Low

DTC B2958

Security System Sensor Data Circuit High

DTC B2960

Security System Sensor Data Incorrect But Valid

DTC B3031

Security System Controller in Learn Mode

DTC B3033

Security System Indicates Tamper

DTC B3109

Keyless Entry Transmitter Low Battery

DTC B3127

LF Door Only Unlock Circuit Low

DTC B3132

All Door Unlock Circuit Low

DTC B3137

All Door Lock Circuit Low

DTC B3267

Trunk Release Output Circuit Low

DTC B3268

Trunk Release Output Circuit High

DTC B3715

Front Wiper Relay Drive Circuit

DTC B3717

Front Wiper Relay Drive Circuit Low

DTC B3719

Front Wiper Relay Drive Circuit Open

DTC B3948

Left Front Turn Signal Circuit

DTC B3949

Right Front Turn Signal Circuit

DTC B3950

Left Rear Turn Signal Circuit

DTC B3951

Right Rear Turn Signal Circuit

DTC C0000

Vehicle Speed Information Circuit Malfunction

DTC C0035

Left Front Wheel Speed Sensor Circuit Malfunction

DTC C0036

Left Front Wheel Speed Circuit Range Performance

DTC C0040

Right Front Wheel Speed Sensor Circuit Malfunction

DTC C0041

Right Front Wheel Speed Circuit Range Performance

DTC C0045

Left Rear Wheel Speed Sensor Circuit Malfunction

DTC C0046

Left Rear Wheel Speed Circuit Range Performance

DTC C0050

Right Rear Wheel Speed Sensor Circuit Malfunction

DTC C0051

Right Rear Wheel Speed Circuit Range Performance

DTC C0060

Left Front ABS Solenoid 1 Circuit Malfunction

DTC C0065

Left Front ABS Solenoid 2 Circuit

DTC C0070

Right Front ABS Solenoid 1 Circuit Malfunction

DTC C0075

Right Front ABS Solenoid 2 Circuit

DTC C0080

Left Rear ABS Solenoid 1 Circuit Malfunction

DTC C0085

Left Rear ABS Solenoid 2 Circuit

DTC C0090

Right Rear ABS Solenoid 1 Circuit Malfunction

DTC C0095

Right Rear ABS Solenoid 2 Circuit

DTC C0110

Pump Motor Circuit Malfunction

DTC C0121

Valve Relay Circuit Malfunction

DTC C0129

Low Brake Fluid Circuit High

DTC C0161

ABS/TCS Brake Switch Circuit Malfunction

DTC C0245

Wheel Speed Sensor Frequency Error

DTC C0267

Low Brake Fluid Indicated

DTC C0475

Electric Steering Motor Circuit

DTC C0476

Electric Steering Motor Circuit Performance

DTC C0545

Steering Wheel Torque Input Sensor

DTC C0550

ECU Malfunction

DTC C0847

Device Ignition 1 Circuit Low

DTC C0848

Device Ignition 1 Circuit High

DTC C0896

Device Voltage Range/Performance

DTC C0899

Device 1 Voltage Low

DTC C0900

Device 1 Voltage High

DTC P0031

HO2S Heater Control Circuit Low Voltage Sensor 1

DTC P0032

HO2S Heater Control Circuit High Voltage Sensor 1

DTC P0037

HO2S Heater Control Circuit Low Voltage Sensor 2

DTC P0038

HO2S Heater Control Circuit High Voltage Sensor 2

DTC P0106

Manifold Absolute Pressure (MAP) Sensor Circuit

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

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 P0200

Injector Control Circuit

DTC P0201

Injector 1 Control Circuit

DTC P0202

Injector 2 Control Circuit

DTC P0203

Injector 3 Control Circuit

DTC P0204

Injector 4 Control Circuit

DTC P0217

Engine Coolant Overtemperature

DTC P0218

Trans. OvertemP0

DTC P0218

Transmission Fluid Overtemperature

DTC P0261

Injector 1 Control Circuit Low Voltage

DTC P0262

Injector 1 Control Circuit High Voltage

DTC P0264

Injector 2 Control Circuit Low Voltage

DTC P0265

Injector 2 Control Circuit High Voltage

DTC P0267

Injector 3 Control Circuit Low Voltage

DTC P0268

Injector 3 Control Circuit High Voltage

DTC P0270

Injector 4 Control Circuit Low Voltage

DTC P0271

Injector 4 Control Circuit High Voltage

DTC P0300

Engine Misfire Detected

DTC P0301

Cylinder 1 Misfire Detected

DTC P0302

Cylinder 2 Misfire Detected

DTC P0303

Cylinder 3 Misfire Detected

DTC P0304

Cylinder 4 Misfire Detected

DTC P0315

Crankshaft Position System Variation Not Learned (CASE)

DTC P0324

Knock Sensor (KS) Module Performance

DTC P0326

Knock Sensor (KS) Performance

DTC P0327

Knock Sensor (KS) Circuit

DTC P0336

Crankshaft Position (CKP) Sensor Performance

DTC P0340

Camshaft Position (CMP) Sensor Circuit

DTC P0341

Camshaft Position (CMP) Sensor Performance

DTC P0351

Ignition Coil 1 and 4 Control Circuit

DTC P0352

Ignition Coil 2 and 3 Control Circuit

DTC P0401

EGR Flow Insufficient

DTC P0404

EGR System Performance

DTC P0405

EGR Sensor Circuit Low Voltage

DTC P0420

Catalyst System Low Efficiency

DTC P0440

EVAP System

DTC P0442

Evaporative Emission (EVAP) System Small Leak Detected

DTC P0443

EVAP Purge Solenoid Control Circuit

DTC P0444

Evaporative Emission (EVAP) Purge Solenoid Control Circuit Low Voltage

DTC P0445

Evaporative Emission (EVAP) Purge Solenoid Control Circuit High Voltage

DTC P0446

Evaporative Emission (EVAP) Vent System Performance

DTC P0447

Evaporative Emission (EVAP) Vent Solenoid Control Circuit Low Voltage

DTC P0448

Evaporative Emission (EVAP) Vent Solenoid Control Circuit High Voltage

DTC P0452

Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage

DTC P0453

Fuel Tank Pressure (FTP) Sensor Circuit High Voltage

DTC P0455

Evaporative Emission (EVAP) System Leak Detected

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 P0496

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P0500

Vehicle Speed Signal

DTC P0506

Idle Speed Low

DTC P0507

Idle Speed High

DTC P0508

Idle Air Control (IAC) Valve Control Circuit Low Voltage

DTC P0509

Idle Air Control (IAC) Valve Control Circuit High Voltage

DTC P0520

Engine Oil Pressure (EOP) Switch 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 P0562

System Voltage Low

DTC P0563

System Voltage High

DTC P0565

Cruise Control Switch Circuit

DTC P0571

Cruise Brake Switch Circuit

DTC P0572

Cruise Control Brake Switch Circuit Low Voltage

DTC P0573

Cruise Control Brake Switch Circuit High Voltage

DTC P0601

Control Module Read Only Memory (ROM)

DTC P0602

ECM Not Programmed

DTC P0603

ECM Long Term Memory Reset

DTC P0604

Transmission Control Module (TCM) Random Access Memory (RAM)

DTC P0606

ECM Internal Performance

DTC P0616

Starter Relay Control Circuit Low Voltage

DTC P0617

Starter Relay Control Circuit High Voltage

DTC P0621

Generator L-Terminal Circuit

DTC P0622

Generator F-Terminal Circuit

DTC P0628

Fuel Pump Relay Control Circuit Low Voltage

DTC P0629

Fuel Pump Relay Control Circuit High Voltage

DTC P0630

VIN Information Error

DTC P0641

5Volt Reference Circuit

DTC P0646

Air Conditioning (A/C) Clutch Relay Control Circuit Low Voltage

DTC P0647

Air Conditioning (A/C) Clutch Relay Control Circuit High Voltage

DTC P0650

Malfunction Indicator Lamp (MIL) Control Circuit

DTC P0691

Cooling Fan Relay Control Circuit High Voltage

DTC P0700

Transmission Control System

DTC P0702

Trans. Control System Low Voltage

DTC P0703

Brake Switch Circuit

DTC P0705

Transmission Range Switch Circuit

DTC P0706

Transaxle Range Switch Performance

DTC P0708

Trans. Range Switch Circuit High

DTC P0710

TFT Sensor Circuit Low

DTC P0711

Transmission Fluid Temperature (TFT) Sensor Performance

DTC P0712

Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage

DTC P0713

Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

DTC P0714

TFT Sensor Circuit Intermittent

DTC P0716

Input Speed Sensor Performance

DTC P0717

Input Speed Sensor Circuit Low Voltage

DTC P0719

Brake Switch Circuit Low Voltage

DTC P0721

VSS Circuit Performance

DTC P0722

Output Speed Sensor Circuit Low Voltage

DTC P0723

Output Speed Sensor Circuit Intermittent

DTC P0724

Brake Switch Circuit High Voltage

DTC P0727

Engine Speed-No Signal

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 P0735

Incorrect 5th Gear Ratio

DTC P0736

Incorrect Reverse Ratio

DTC P0740

TCC Enable Solenoid Control Circuit

DTC P0741

Torque Converter Clutch (TCC) System-Stuck Off

DTC P0742

Torque Converter Clutch (TCC) System-Stuck On

DTC P0743

TCC Solenoid Circuit

DTC P0744

Torque Converter Clutch (TCC) System Intermittent

DTC P0745

Pressure Control Solenoid Performance Low

DTC P0746

Pressure Control Solenoid Circuit Low

DTC P0747

Pressure Control Solenoid Circuit High

DTC P0748

Pressure Control Solenoid - Performance

DTC P0749

Pressure Control Solenoid Circuit Intermittent

DTC P0756

Shift Solenoid 2 Circuit Low

DTC P0758

Shift Solenoid 2 Circuit High

DTC P0759

Shift Solenoid 2 Circuit Intermittent

DTC P0761

Shift Solenoid 3 Circuit Low

DTC P0762

4-5 Shift Solenoid Valve Performance-No Fifth Gear

DTC P0763

Shift Solenoid 3 Circuit High

DTC P0764

Shift Solenoid 3 Circuit Intermittent

DTC P0766

Shift Solenoid 4 Circuit Low

DTC P0768

Shift Solenoid 4 Circuit High

DTC P0769

Shift Solenoid 4 Circuit Intermittent

DTC P0781

Shift Solenoid 2 Circuit Performance

DTC P0782

Shift Solenoid 3 Circuit Performance

DTC P0783

Shift Solenoid 4 Circuit Performance

DTC P0841

Transmission Fluid Pressure (TFP) Sensor Performance

DTC P0842

Transmission Fluid Pressure (TFP) Sensor Circuit Low Voltage

DTC P0843

Transmission Fluid Pressure (TFP) Sensor Circuit High Voltage

DTC P0960

Line Pressure Control (PC) Solenoid Control Circuit Open

DTC P0961

Line Pressure Control (PC) Solenoid System Performance

DTC P0962

Line Pressure Control (PC) Solenoid Control Circuit Low Voltage

DTC P0963

Line Pressure Control (PC) Solenoid Control Circuit High Voltage

DTC P0964

Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit Open

DTC P0965

Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid System Performance

DTC P0966

Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit Low Voltage

DTC P0967

Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit High Voltage

DTC P0970

Shift Pressure Control (PC) Solenoid Control Circuit Low Voltage

DTC P0971

Shift Pressure Control (PC) Solenoid Control Circuit High Voltage

DTC P0973

Shift Solenoid 1 Control Circuit Low Voltage

DTC P0974

Shift Solenoid 1 Control Circuit High Voltage

DTC P0976

Shift Solenoid 2 Control Circuit Low Voltage

DTC P0977

Shift Solenoid 2 Control Circuit High Voltage

DTC P0979

Shift Solenoid 3 Control Circuit Low Voltage

DTC P0980

Shift Solenoid 3 Control Circuit High Voltage

DTC P0982

Shift Solenoid 4 Control Circuit Low Voltage

DTC P0983

Shift Solenoid 4 Control Circuit High Voltage

DTC P0985

Shift Solenoid 5 Control Circuit Low Voltage

DTC P0986

Shift Solenoid 5 Control Circuit High Voltage

DTC P1106

MAP Sensor Circuit Intermittent High Voltage

DTC P1107

MAP Sensor Circuit Intermittent Low Voltage

DTC P1111

IAT Sensor Circuit Intermittent High Voltage

DTC P1112

IAT Sensor Circuit Intermittent Low Voltage

DTC P1114

ECT Sensor Circuit Intermittent Low Voltage

DTC P1115

ECT Sensor Circuit Intermittent High Voltage

DTC P1121

TP Sensor Circuit Intermittent High Voltage

DTC P1122

TP Sensor Circuit Intermittent Low Voltage

DTC P1133

HO2S Insufficient Switching Sensor 1

DTC P1134

HO2S Transition Time Ratio Sensor 1

DTC P1215

PCM Driver Circuit

DTC P1351

Ignition Coil 1 and 4 Control Circuit High Voltage

DTC P1352

Ignition Coil 2 and 3 Control Circuit High Voltage

DTC P1380

ABS Requested Service Lamp

DTC P1404

EGR Valve Sensor Closed Pintle Position

DTC P1406

EGR Valve Pintle Position Circuit

DTC P1508

IAC System Low RPM

DTC P1509

IAC System High RPM

DTC P1540

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

DTC P1555

EVO Solenoid Control Circuit

DTC P1574

Stop Lamp Switch Circuit

DTC P1580

Cruise Control Move Circuit Low Voltage

DTC P1581

Cruise Control Move Circuit High Voltage

DTC P1582

Cruise Control Direction Output Circuit Low Voltage

DTC P1583

Cruise Control Direction Output Circuit High Voltage

DTC P1584

Cruise Control Disabled

DTC P1587

Cruise Control Clutch Output Circuit Low Voltage

DTC P1588

Cruise Control Clutch Output Circuit High Voltage

DTC P1599

Engine Stall Detected

DTC P1601

PCM Serial Communication Circuit

DTC P1602

Serial Communication Circuit - (ABS)

DTC P1620

Low Coolant Switch Circuit

DTC P1621

Control Module Long Term Memory Performance

DTC P1624

Customer Snapshot Requested - Data Available

DTC P1626

Theft Deterrent Start Enable Signal Lost

DTC P1630

Theft Deterrent Learn Mode Active

DTC P1631

Theft Deterrent Start Enable Signal Not Correct

DTC P1683

Control Module Ignition Off Timer Performance

DTC P1693

Tachometer Output Circuit

DTC P1695

RKE Module Control Circuit - Low Voltage

DTC P1719

Incorrect Shifting

DTC P1756

Transmission Range (TR) Switch Indicates Park/Neutral (P/N) With Drive Ratio

DTC P1758

Transmission Range (TR) Switch Indicates Drive Without Drive Ratio

DTC P1776

Input Clutch Stuck Off

DTC P1779

Torque Delivered Signal

DTC P1780

Torque Reduction Signal

DTC P1781

Engine Torque Signal

DTC P1791

Throttle/Pedal Position Signal

DTC P1792

Engine Coolant Signal

DTC P1868

Transmission Fluid Life

DTC P1882

Ratio Control Performance

DTC P1883

Ratio Control Motor Coil A1 Control Circuit

DTC P1884

Ratio Control Motor Coil A2 Control Circuit

DTC P1885

Ratio Control Motor Coil B1 Control Circuit

DTC P1886

Ratio Control Motor Coil B2 Control Circuit

DTC P1888

Torque Converter Clutch (TCC) Enable Solenoid Control Circuit Low Voltage

DTC P1889

Torque Converter Clutch (TCC) Enable Solenoid Control Circuit High Voltage

DTC U1000

Class 2 Data Link

DTC U1016

Lost Communications with Engine Control Module (ECM)

DTC U1040

Lost Communications With Electronic Brake Control Module (EBCM)

DTC U1048

Lost Communications With Electric Power Steering

DTC U1064

Lost Communications With BCM/DIM

DTC U1088

Lost Communications With Sensing and Diagnostic Module (SDM)

DTC U1096

Lost Communications With Instrument Panel Cluster (IPC)

DTC U1128

Lost Communications With Radio

DTC U1151

Lost Communications With Onstar

DTC U1300

Class 2 Data Link Low

DTC U1301

Class 2 Data Link High

DTC U1700

Transmission Control Module (TCM) Requested MIL Illumination

DTC U2100

CAN Bus Error With Engine Control System

DTC U2103

Fewer Controllers On Bus Than Programmed

DTC U2104

Controller Area Network (CAN) Bus Reset Counter Overrun

DTC U2105

Lost Communications With Engine Control System

DTC U2106

Lost Communications With Transmission Control System

DTC U2107

Lost Communications With Body Control System

DTC U2108

Lost Communications With ABS/TCS Control System