GM Service Manual Online
For 1990-2009 cars only

DTC

Descriptor

DTC 023

DTC 024

DTC 033

DTC 063

DTC 064

DTC 065

DTC B0012, B0013, B0014, B0016, B0017, or B0018

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

DTC B0022, B0024, B0026, B0042, B0043, or B0044

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

DTC B0051

Deployment Commanded

DTC B0053

Deployment Commanded with Loop Malfunctions Present

DTC B0083 or B0084

Inflatable Restraint Seat Position Switch Circuit

DTC B0092

Suppression Sensor 1 Circuit Malfunction

DTC B0098

Automatic Occupant Sensing Controller ECU Malfunction

DTC B0100, B0101, B0102, B0103, B0104, or B0105

Electronic Frontal Sensor Circuit

DTC B0159 or B0164

Air Temperature Sensor Circuit

DTC B0174, B0179, B0510, or B0515

Discharge Air Temperature Sensor Circuit

DTC B0183 or B0188

Sunload Sensor Circuit

DTC B0229, B0414, B0424, or B3770

HVAC Door Actuator Range/Performance

DTC B0263, B0268, B0408, or B0418

HVAC Door Actuator Circuit

DTC B0263, B0408, or B0418

HVAC Door Actuator Circuit

DTC B0283

Electric Rear Defrost Circuit

DTC B0414, B0424, or B3770

HVAC Door Actuator Range/Performance

DTC B0540

Speedometer Circuit

DTC B0560

Tachometer Circuit Range/Performance

DTC B0790

Transfer Case Neutral Indicator Circuit

DTC B0951

Headlamps On Indicator Circuit

DTC B1000

ECU Malfunction

DTC B1001

Option Configuration Error

DTC B1004

Keep Alive Memory (KAM) Reset

DTC B1007

EEPROM Write Error

DTC B1009

EEPROM Checksum Mismatch

DTC B1017

Driver Door Unlock Relay Circuit

DTC B1023

Integral Switch Performance

DTC B1025, B1035, B1045, or B1055

Audio [+] Output Circuit

DTC B1235

Amplifier On Signal Circuit

DTC B1259

Antenna Ground Circuit

DTC B1372

Device Ignition 1 (ON and START) Circuit Low

DTC B1375

Device Ignition 3 (ON) Circuit

DTC B1440

Power Mode Master Input Circuits Mismatch

DTC B1480

Battery Rundown Protection Circuit Malf

DTC B1544, B1600, or B1605

Mirror Motors Common Circuit

DTC B1580, B1590, B1610, or B1620

Mirror Position Sensor Circuit

DTC B1640 or B1645

Mirror Heater Circuit

DTC B1722

Mirror Power Fold Control Circuit

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, B1820, B1830, B1835, B1840, B1845, B1940, or B1945

Seat Switch Circuit

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

Seat Motor(s) Overcurrent

DTC B1825

Seat Recline Position Sensor Circuit

DTC B1850, B1860, B1960, B2355, B2365, or B2375

Seat Position Sensor Circuit

DTC B2425 or B2430

Seat Heater Circuit

DTC B2435 or B2440

Seat Back Heater Sensor Circuit

DTC B2455

Cellular Phone Microphone Circuit

DTC B2470

Cellular Phone Antenna Circuit

DTC B2476

Cellular Phone Select Service Switch Malfunction

DTC B2482

Cellular Phone Select Service Switch Range/Performance

DTC B2483 or B2484

Global Positioning System (GPS) Sensor Circuit

DTC B2527

Front Fog Lamp Circuit Low

DTC B2530

Front Foglamps Control Circuit

DTC B2540

Rear Foglamps Control Circuit

DTC B2550

Backup Lamps Control Circuit

DTC B2575

Headlamp Control Circuit

DTC B2580

Headlamp High Beam Control Circuit

DTC B2585

Parklamp Control Circuit Malfunction

DTC B2600

Daytime Running Lamp Control Circuit

DTC B2610

Passenger Compartment 1 Dimming Circuit

DTC B2615

Passenger Compartment Dimming 2 Circuit

DTC B2620

Display Dimming Pulse Width Modulation (PWM) Input Circuit

DTC B2625

Display Dimming Pulse Width Modulation (PWM) Output Circuit

DTC B2645

Ambient Light Sensor Circuit

DTC B2722

Trans Preference Switch Circuit Low

DTC B2725

ATC Mode Switch Circuit Malfunction

DTC B2752

Horn Relay Coil Circuit Low

DTC B2815

Steering Wheel Controls Illegal Resistance Value

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 B2961

Key In Ignition Circuit Malfunction

DTC B3031

Security System Controller in Learn Mode

DTC B3033

Security System Indicates Tamper

DTC B3593

Steering System Mode Switch Circuit

DTC B3801

Passenger Compartment Lamp Request Circuit

DTC B3802

Parklamps Request Circuit

DTC B3808

Rear Door Lock Relay Circuit

DTC B3809

Rear Door Unlock Relay Circuit

DTC B3819

Left Rear Window Up Control Circuit

DTC B3820

Left Rear Window Down Control Circuit

DTC B3821

Left Rear Window Relay Power Circuit

DTC B3822

Right Rear Window Up Control Circuit

DTC B3823

Right Rear Window Down Control Circuit

DTC B3824

Right Rear Window Relay Power Circuit

DTC B3941

Front Seat Heaters Circu

DTC B3962

Seat Motor(s) Overcurrent

DTC C0000

Vehicle Speed Information Circuit Malfunction

DTC C0035 or C0040

Front Wheel Speed Sensor Circuit

DTC C0055

Rear Wheel Speed Sensor Circuit

DTC C0110

Pump Motor Circuit

DTC C0161

Antilock Brake System (ABS)/Traction Control System (TCS) Brake Switch

DTC C0186

Lateral Accelerometer Circuit Malfunction

DTC C0196

Yaw Rate Circuit Malfunction

DTC C0201

Antilock Brake System (ABS) Enable Relay Contact Circuit

DTC C0221-C0227

Front Wheel Speed Sensor Circuit

DTC C0228

Antilock Brake System (ABS) Channel in Release Too Long

DTC C0229

Drop Out of Front Wheel Speed Signals

DTC C0235-C0237 or P0609

Rear Wheel Speed Sensor Circuit

DTC C0238

Wheel Speed Mismatch

DTC C0241-C0254 8600 GVW or Under

EBCM Malfunction

DTC C0241-C0254 Over 8600 GVW

Wheel Speed Mismatch

DTC C0253

Centering Fault

DTC C0265 or C0266

EBCM Relay Circuit

DTC C0267 or C0268

Pump Motor Circuit Open/Shorted

DTC C0269 or C0274

Excessive Dump/Isolation Time

DTC C0271-C0273, C0284

EBCM Malfunction

DTC C0279

Powertrain Configuration Not Valid

DTC C0281

Brake Switch Circuit

DTC C0283

Traction Switch Shorted to Ground

DTC C0287, P1644, or P1689

Delivered Torque Circuit

DTC C0290 or C0292

Lost Communications With PCM

DTC C0291

Lost Communications With BCM

DTC C0297

Powertrain Configuration Data Not Received

DTC C0298 or P1571

Powertrain Indicated Traction Control Malfunction

DTC C0300

Rear Speed Sensor Malfunction

DTC C0305

Front Speed Sensor Malfunction

DTC C0306

Motor A or B Circuit

DTC C0321

Transfer Case Lock Circuit

DTC C0327

Encoder Circuit Malfunction

DTC C0359

Four Wheel Drive Low Range (4LO) Discrete Output Circuit

DTC C0374

General System Malfunction

DTC C0379

Front Axle System

DTC C0455

Front Steering Position Sensor Circuit

DTC C0472 or C0473

Steering Handwheel Speed Sensor Signal Circuit

DTC C0522

Rear Steering Position Sensor Circuit

DTC C0527

Rear Steering Motor Position Sensor Circuit

DTC C0532

Rear Steering Position and Motor Position Sensors Uncorrelated

DTC C0533

Rear Steering Motor Relay Circuit

DTC C0538

Rear Steering Motor Circuit

DTC C0543

Rear Steering Motor Position Error

DTC C0550

ECU Malfunction

DTC P0016

Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation

DTC P0087

Fuel Rail Pressure (FRP) Too Low

DTC P0088

Fuel Rail Pressure (FRP) Too High

DTC P0089

Fuel Pressure Regulator Performance

DTC P0090

Fuel Pressure Regulator Control Circuit

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 P0120

Throttle Position (TP) Sensor 1 Circuit

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 P0131 or P0151

HO2S Circuit Low Voltage

DTC P0132 or P0152

HO2S Circuit High Voltage

DTC P0133 or P0153

HO2S Slow Response

DTC P0134 or P0154

HO2S Circuit Insufficient Activity

DTC P0135 or P0155

HO2S Heater Performance

DTC P0135, P0141, P0155, or P0161

HO2S Heater Performance

DTC P0137 or P0157

HO2S Circuit Low Voltage

DTC P0138 or P0158

HO2S Circuit High Voltage

DTC P0140 or P0160

HO2S Circuit Insufficient Activity

DTC P0141 or P0161

HO2S Heater Performance

DTC P0168

Engine Fuel Overtemperature

DTC P0171 or P0174

Fuel Trim System Lean

DTC P0172 or P0175

Fuel Trim System Rich

DTC P0178

Fuel Composition Sensor Circuit Low Frequency

DTC P0179

Fuel Composition Sensor Circuit High Frequency

DTC P0181

Fuel Temperature Sensor Performance

DTC P0182

Fuel Temperature Sensor Circuit Low Voltage

DTC P0183

Fuel Temperature Sensor Circuit High Voltage

DTC P0192

Fuel Rail Pressure (FRP) Sensor Circuit Low Voltage

DTC P0193

Fuel Rail Pressure (FRP) Sensor Circuit High Voltage

DTC P0200

Injector Control Circuit

DTC P0201-P0208

Injector Control Circuit

DTC P0218

Transmission Fluid Overtemperature

DTC P0220

Throttle Position (TP) Sensor 2 Circuit

DTC P0230

Fuel Pump Relay Control Circuit

DTC P0234

Engine Overboost

DTC P0236

Turbocharger Boost System Performance

DTC P0237

Turbocharger Boost Sensor Circuit Low Voltage

DTC P0238

Turbocharger Boost Sensor Circuit High Voltage

DTC P0300

Engine Misfire Detected

DTC P0301-P0308

Engine Misfire Detected

DTC P0315

Crankshaft Position (CKP) System Variation Not Learned

DTC P0325

Knock Sensor Module Performance

DTC P0327

Knock Sensor (KS) 1 Circuit

DTC P0327 or P0332

Knock Sensor Circuit

DTC P0335

Crankshaft Position (CKP) Sensor Circuit

DTC P0336

Crankshaft Position (CKP) Sensor Performance

DTC P0340

Camshaft Position (CMP) Sensor Circuit

DTC P0341

Camshaft Position (CMP) Sensor Performance

DTC P0342

Camshaft Position (CMP) Sensor Circuit Low Voltage

DTC P0343

Camshaft Position (CMP) Sensor Circuit High Voltage

DTC P0351

Ignition Coil 1 Control Circuit

DTC P0351-P0358

Ignition Coil Control Circuit

DTC P0370 or P0374

High Resolution Circuit

DTC P0380

Glow Plug Feedback Circuit

DTC P0381

Wait to Start Lamp Control Circuit

DTC P0401

Exhaust Gas Recirculation (EGR) Flow Insufficient

DTC P0404

Exhaust Gas Recirculation (EGR) Open Position Performance

DTC P0405

Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage

DTC P0406

Exhaust Gas Recirculation (EGR) Position Sensor Circuit High Voltage

DTC P0420 or P0430

Catalyst System Low Efficiency

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 P0455

Evaporative Emission (EVAP) System Large 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 P0489

Exhaust Gas Recirculation (EGR) Solenoid Control Circuit Low Voltage

DTC P0490

Exhaust Gas Recirculation (EGR) Solenoid Control Circuit High Voltage

DTC P0496

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P0500

Vehicle Speed Sensor (VSS) Circuit

DTC P0502

Vehicle Speed Sensor (VSS) Circuit Low Input

DTC P0503

Vehicle Speed Sensor (VSS) Circuit Intermittent

DTC P0506

Idle Speed Low

DTC P0506 or P0507

Incorrect Idle Speed

DTC P0507

Idle Speed High

DTC P0522

Engine Oil Pressure (EOP) Switch Circuit Low Voltage

DTC P0523

Engine Oil Pressure (EOP) Sensor Circuit High Voltage

DTC P0530

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

DTC P0540

Intake Air (IA) Heater Feedback Circuit

DTC P0543

Intake Air (IA) Heater Element Open

DTC P0561

System Voltage Performance

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 P0571

Cruise Control Brake Switch Circuit

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

ECU Malfunction

DTC P0608

Vehicle Speed Output Circuit

DTC P0611

Fuel Injector Control Module Performance

DTC P0612

Fuel Injector Control Module Relay Control Circuit

DTC P0615

Starter Relay Control Circuit

DTC P0621

Generator L-Terminal Circuit

DTC P0622

Generator F-Terminal Circuit

DTC P0641

5 Volt Reference 1 Circuit

DTC P0650

Malfunction Indicator Lamp (MIL) Control Circuit

DTC P0651

5 Volt Reference 2 Circuit

DTC P0654

Engine Speed Output Circuit

DTC P0700

Transmission Control Module (TCM) Requested MIL Illumination

DTC P0701

Transmission Control System Performance

DTC P0703

Brake Switch Circuit

DTC P0704

Clutch Switch Circuit

DTC P0706

Trans Range Switch Performance

DTC P0708

Transmission Range (TR) Switch Circuit High Voltage

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 P0721

Output Speed Sensor Performance

DTC P0722

Output Speed Sensor Circuit Low Voltage

DTC P0724

Brake Switch Circuit High Input

DTC P0726

Engine Speed Circuit Performance

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 Circuit Electrical

DTC P0741

TCC System Stuck Off

DTC P0742

TCC System Stuck On

DTC P0743

Torque Converter Clutch PWM Solenoid Circuit Electrical

DTC P0746

Solenoid A Controlled Clutch Stuck Off

DTC P0747

Solenoid A Controlled Clutch 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 P0763

Shift Solenoid (SS) 3 Control Circuit High Voltage

DTC P0768

Shift Solenoid (SS) 4 Control Circuit High Voltage

DTC P0773

Torque Converter Clutch (TCC) Enable Solenoid Control Circuit

DTC P0776

Solenoid B Controlled Clutch Stuck Off

DTC P0777

Solenoid B Controlled Clutch Stuck On

DTC P0778

Pressure Control Solenoid B Electrical

DTC P0785

3-2 Shift Solenoid Circuit Electrical

DTC P0802

Transmission Control Module (TCM) MIL Request Circuit

DTC P0833

Clutch Pedal Switch 2 Circuit

DTC P0836

Transfer Case Switch Circuit

DTC P0840

Transmission Pressure Switch Solenoid C Circuit

DTC P0841

Pressure Switch Manifold (PSM) Switch C Circuit

DTC P0842

Pressure Switch Manifold (PSM) Switch C Circuit

DTC P0843

Pressure Switch Manifold (PSM) Switch C Circuit

DTC P0845

Transmission Pressure Switch Solenoid D Circuit

DTC P0846

Transmission Pressure Switch Solenoid D Circuit Stuck Open

DTC P0847

Transmission Pressure Switch Solenoid D Circuit Stuck Closed

DTC P0848

Transmission Pressure Switch Solenoid D Circuit High

DTC P0870

Transmission Pressure Switch Solenoid E Circuit

DTC P0871

Transmission Pressure Switch Solenoid E Circuit Stuck Open

DTC P0872

Transmission Pressure Switch Solenoid E Circuit Stuck Closed

DTC P0873

Transmission Pressure Switch Solenoid E Circuit High

DTC P0875

Transmission Reverse Pressure Switch Circuit Malfunction

DTC P0876

Transmission Reverse Pressure Switch Circuit Stuck Open

DTC P0880

Transmission TCM Power Input Signal

DTC P0894

Transmission Component Slipping

DTC P1093

Fuel Rail Pressure Low During Power Enrichment

DTC P1094

Fuel Rail Pressure Low During Idle or Decel Fuel Cut-Off (DFCO)

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 P1125

Accelerator Pedal Position (APP) System

DTC P1133 or P1153

HO2S Insufficient Switching

DTC P1172

Sec Fuel Pump Insufficient/No Fuel Flow

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244

Injector Output Circuit

DTC P1258

Engine Coolant Overtemperature - Protection Mode Active

DTC P1270

Accelerator Pedal Position (APP) Sensor Analog to Digital Performance

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 P1514

Throttle Body Performance

DTC P1515

Control Module Throttle Actuator Position Performance

DTC P1516

Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

DTC P1518

Throttle Actuator Control (TAC) Module Serial Data Circuit

DTC P1550

Fuel Injector Control Module System Voltage

DTC P1571

Traction Control Torque Request Circuit

DTC P1574

Stoplamp Switch Circuit

DTC P1626

Theft Deterrent Fuel Enable Signal Lost

DTC P1631

Theft Deterrent Start Enable Signal Not Correct

DTC P1637

Generator L-Terminal Circuit

DTC P1638

Generator F-Terminal Circuit

DTC P1658

Fuel Injector Control Module Driver Performance

DTC P1688

Unmanaged Engine Torque Delivered To TCM

DTC P1779

Engine Torque Delivered To TCM Signal

DTC P1810

TFP Valve Position Switch Circuit

DTC P1860

TCC PWM Solenoid Circuit Electrical

DTC P1875

4WD Low Switch Circuit Electrical

DTC P2066

Fuel Level Sensor 2 Performance

DTC P2067

Fuel Level Sensor 2 Circuit Low Voltage

DTC P2068

Fuel Level Sensor 2 Circuit High Voltage

DTC P2108

Throttle Actuator Control (TAC) Module Performance

DTC P2120

Accelerator Pedal Position (APP) Sensor 1 Circuit

DTC P2121

Accelerator Pedal Position (APP) Sensor 1 Performance

DTC P2122

Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

DTC P2123

Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

DTC P2125

Accelerator Pedal Position (APP) Sensor 2 Circuit

DTC P2127

Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage

DTC P2128

Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage

DTC P2132

Accelerator Pedal Position (APP) Sensor 3 Circuit Low Voltage

DTC P2133

Accelerator Pedal Position (APP) Sensor 3 Circuit High Voltage

DTC P2135

Throttle Position (TP) Sensor 1-2 Correlation

DTC P2138

Accelerator Pedal Position (APP) Sensor 1-2 Correlation

DTC P2139

Accelerator Pedal Position (APP) Sensor 1-3 Correlation

DTC P2140

Accelerator Pedal Position (APP) Sensor 2-3 Correlation

DTC P2141

Exhaust Gas Recirculation (EGR) Throttle Valve Solenoid Control Circuit Low Voltage

DTC P2142

Exhaust Gas Recirculation (EGR) Throttle Valve Solenoid Control Circuit High Voltage

DTC P2144

Exhaust Gas Recirculation (EGR) Vent Solenoid Control Circuit Low Voltage

DTC P2145

Exhaust Gas Recirculation (EGR) Vent Solenoid Control Circuit High Voltage

DTC P2146

Injector Positive Voltage Control Circuit Group 1

DTC P2149

Injector Positive Voltage Control Circuit Group 2

DTC P2227

Barometric Pressure (BARO) Sensor Performance

DTC P2228

Barometric Pressure (BARO) Sensor Circuit Low Voltage

DTC P2229

Barometric Pressure (BARO) Sensor Circuit High Voltage

DTC P2279

Intake Air (IA) Duct Air Leak

DTC U1000 and U1255

Class 2 Communication Malfunction

DTC U1001-U1254

Loss of XXX Communications

DTC U1241

Lost Communications With Scan Tool

DTC U1300, U1301, or U1305

Class 2 Data Link Shorted

DTC U1305

Class 2 Data Link Low or High

DTC U1500

Communication (Front to Rear) State of Health

DTC U1800

Lost Communications With Fuel Injector Control Module (FICM)

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