GM Service Manual Online
For 1990-2009 cars only

DTC

DTC Descriptor

Module That Sets the DTC

Diagnostic Procedure

B0016

Passenger Frontal Deployment Loop Resistance Low

SDM

DTC B0016, B0017, or B0018 in SIR

B0017

Passenger Frontal Deployment Loop Open

SDM

DTC B0016, B0017, or B0018 in SIR

B0018

Passenger Frontal Deployment Loop Voltage Out of Range

SDM

DTC B0016, B0017, or B0018 in SIR

B0022

Driver Frontal Deployment Loop Resistance Low

SDM

DTC B0022, B0024, or B0026 in SIR

B0024

Driver Frontal Deployment Loop Voltage Out of Range

SDM

DTC B0022, B0024, or B0026 in SIR

B0026

Driver Frontal Deployment Loop Open

SDM

DTC B0022, B0024, or B0026 in SIR

B0051

Deployment Commanded

SDM

DTC B0051 in SIR

B0053

Deployment Commanded with Loop DTCs Present

SDM

DTC B0053 in SIR

B0077

Left Side Impact Sensor (SIS) Performance

SDM

DTC B0077, B0079, or B0080 in SIR

B0079

Incorrect Left Side Impact Sensor (SIS) Installed

SDM

DTC B0077, B0079, or B0080 in SIR

B0080

Discard Left Side Impact Sensor (SIS)

SDM

DTC B0077, B0079, or B0080 in SIR

B0090

Active Switch Voltage Out of Range

SDM

DTC B0090 in SIR

B0091

Active Switch: Wrong State

SDM

DTC B0091 in SIR

B0540

Speedometer Circuit

ECM, PCM

DTC B0540 in Instrument Panel, Gages, and Console

B0560

Tachometer Circuit

ECM, PCM

DTC B0560 in Instrument Panel, Gages, and Console

B0775

Four Wheel Drive High Range (4HI) Indicator Circuit Malfunction

TCSCM

DTC B0775 in Transfer Case - NVG 273

B0780

Four Wheel Drive Low Range (4LO) Indicator Circuit Malfunction

TCSCM

DTC B0780 in Transfer Case - NVG 273

B0785

Two Wheel Drive High Range (2HI) Indicator Circuit Malfunction

TCSCM

DTC B0785 in Transfer Case - NVG 273

B0790

Transfer Case Neutral Indicator Circuit Malfunction

TCCM

DTC B0790 in Transfer Case - NVG 273

B1000

Electronic Control Unit (ECU) Performance

IPC, SDM

DTC B1000 in Instrument Panel, Gages, and Console

or

DTC B1000 in SIR

B1001

Option Configuration Error

SDM

DTC B1001 in SIR

B1025

Audio Output 1 (Left Front) Circuit

Radio

DTC B1025, B1035, B1045, or B1055 in Entertainment

B1035

Audio Output 2 (Right Front) Circuit

Radio

DTC B1025, B1035, B1045, or B1055 in Entertainment

B1045

Audio Output 3 (Left Rear) Circuit

Radio

DTC B1025, B1035, B1045, or B1055 in Entertainment

B1055

Audio Output 4 (Right Rear) Circuit

Radio

DTC B1025, B1035, B1045, or B1055 in Entertainment

B1365

Device Ignition 0 (UNLOCK, ON and START) Circuit

IPC

DTC B1365 in Instrument Panel, Gages, and Console

B1372

Device Ignition 1 Circuit (ON and START) Circuit Low

IPC

DTC B1372 in Instrument Panel, Gages, and Console

B1440

Power Mode Master Input Circuits Mismatch

IPC

DTC B1440 in Instrument Panel, Gages, and Console

B2725

Active Transfer Case (ATC) Mode Switch Circuit

TCCM

DTC B2725 in Transfer Case - NVG 273

B2745

Traction Control Switch Circuit

EBCM

DTC B2745 in Antilock Brake System

C0035

Left Front Wheel Speed Sensor Circuit Low

EBCM

DTC C0035-C0052 in Antilock Brake System

C0052

Right Front Wheel Speed Sensor Circuit Low

EBCM

DTC C0035-C0052 in Antilock Brake System

C0110

Pump Motor Circuit

EBCM

DTC C0110 in Antilock Brake System

C0163

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

EBCM

DTC C0163 or C0164 in Hydraulic Brakes

C0164

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

EBCM

DTC C0163 or C0164 in Hydraulic Brakes

C0220

Left Front Antilock Brake System (ABS) Channel in Release Too Long

EBCM

DTC C0220-C0229 in Antilock Brake System

C0221

Right Front Antilock Brake System (ABS) Channel in Release Too Long

EBCM

DTC C0220-C0229 in Antilock Brake System

C0222

Rear Antilock Brake System (ABS) Channel in Release Too Long

EBCM

DTC C0220-C0229 in Antilock Brake System

C0223

Left Front Antilock Brake System (ABS) Channel Motor Free Spins

EBCM

DTC C0220-C0229 in Antilock Brake System

C0224

Right Front Antilock Brake System (ABS) Channel Motor Free Spins

EBCM

DTC C0220-C0229 in Antilock Brake System

C0225

Rear Antilock Brake System (ABS) Channel Motor Free Spins

EBCM

DTC C0220-C0229 in Antilock Brake System

C0226

Left Front Traction Control System (TCS) Channel Will Not Move

EBCM

DTC C0220-C0229 in Antilock Brake System

C0227

Right Front Traction Control System (TCS) Channel Will Not Move

EBCM

DTC C0220-C0229 in Antilock Brake System

C0228

Left Rear Antilock Brake System (ABS) Channel in Release Too Long

EBCM

DTC C0220-C0229 in Antilock Brake System

C0229

Right Rear Antilock Brake System (ABS) Channel in Release Too Long

EBCM

DTC C0220-C0229 in Antilock Brake System

C0267

Low Brake Fluid Indicated

EBCM

DTC C0267 in Hydraulic Brakes

C0272

Base Brake Pump Motor Circuit

EBCM

DTC C0272 in Hydraulic Brakes

C0285

Brake Fluid Flow Switch Circuit Low

EBCM

DTC C0285 in Hydraulic Brakes

C0286

Brake Fluid Flow Switch Circuit High

EBCM

DTC C0286 or C086 in Hydraulic Brakes

C0306

Motor A or B Circuit

TCCM

DTC C0306 in Transfer Case - NVG 273

C0327

Encoder Circuit

TCCM

DTC C0327 in Transfer Case - NVG 273

C0359

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

TCCM

DTC C0359 in Transfer Case - NVG 273

C0550

Electronic Control Unit (ECU) Performance

TCCM

DTC C0550 in Transfer Case - NVG 273

or

DTC C0550 in Antilock Brake System

C0899

Device (Single or 1) Voltage Low

EBCM

DTC C0899 in Antilock Brake System

C0900

Device (Single or 1) Voltage High

EBCM

DTC C0900 in Antilock Brake System

P0016

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

ECM

DTC P0016 in Engine Controls - 6.6L (LLY)

P0045

Turbocharger Vane Position Control Solenoid Control Circuit

ECM

DTC P0045 in Engine Controls - 6.6L (LLY)

P0046

Turbocharger Vane Control Position Performance

ECM

DTC P0046 in Engine Controls - 6.6L (LLY)

P0068

Throttle Body Airflow Performance

PCM

DTC P0068 in Engine Controls - 8.1L

P0087

Fuel Rail Pressure (FRP) Too Low

ECM

DTC P0087 in Engine Controls - 6.6L (LLY)

or

DTC P0087 in Engine Controls - 7.8L

P0088

Fuel Rail Pressure (FRP) Too High

ECM

DTC P0088 in Engine Controls - 6.6L (LLY)

or

DTC P0088 in Engine Controls - 7.8L

P0089

Fuel Pressure Regulator Performance

ECM

DTC P0089 in Engine Controls - 6.6L (LLY)

P0090

Fuel Pressure Regulator Control Circuit

ECM

DTC P0090 in Engine Controls - 6.6L (LLY)

P0091

Fuel Pressure Regulator Solenoid 1 Control Circuit Low Voltage

ECM

DTC P0091 in Engine Controls - 7.8L

P0092

Fuel Pressure Regulator Solenoid 1 Control Circuit High Voltage

ECM

DTC P0092 in Engine Controls - 7.8L

P0101

Mass Air Flow (MAF) Sensor Performance

ECM, PCM

DTC P0101 in Engine Controls - 6.6L (LLY)

P0102

Mass Air Flow (MAF) Sensor Circuit Low Voltage

ECM

DTC P0102 in Engine Controls - 6.6L (LLY)

Mass Air Flow (MAF) Sensor Circuit Low Frequency

PCM

DTC P0102 in Engine Controls - 8.1L

P0103

Mass Air Flow (MAF) Sensor Circuit High Voltage

ECM

DTC P0103 in Engine Controls - 6.6L (LLY)

Mass Air Flow (MAF) Sensor Circuit High Frequency

PCM

DTC P0103 in Engine Controls - 8.1L

P0107

Barometric Pressure (BARO) Sensor Circuit Low Voltage

ECM

DTC P0107 in Engine Controls - 7.8L

Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

PCM

DTC P0107 in Engine Controls - 8.1L

P0108

Barometric Pressure (BARO) Sensor Circuit High Voltage

ECM

DTC P0108 in Engine Controls - 7.8L

Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

PCM

DTC P0108 in Engine Controls - 8.1L

P0112

Intake Air Temperature (IAT) Sensor Circuit Low Voltage

ECM, PCM

    •  DTC P0112 in Engine Controls - 6.6L (LLY)
    •  DTC P0112 in Engine Controls - 7.8L
    •  DTC P0112 in Engine Controls - 8.1L

P0113

Intake Air Temperature (IAT) Sensor Circuit High Voltage

ECM, PCM

    •  DTC P0113 in Engine Controls - 6.6L (LLY)
    •  DTC P0113 in Engine Controls - 7.8L
    •  DTC P0113 in Engine Controls - 8.1L

P0117

Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

ECM, PCM

    •  DTC P0117 in Engine Controls - 6.6L (LLY)
    •  DTC P0117 in Engine Controls - 7.8L
    •  DTC P0117 in Engine Controls - 8.1L

P0118

Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

ECM, PCM

    •  DTC P0118 in Engine Controls - 6.6L (LLY)
    •  DTC P0118 in Engine Controls - 7.8L
    •  DTC P0118 in Engine Controls - 8.1L

P0120

Throttle Position (TP) Sensor 1 Circuit

PCM

DTC P0120 in Engine Controls - 8.1L

P0131

HO2S Circuit Low Voltage Bank 1 Sensor 1

PCM

DTC P0131 or P0151 in Engine Controls - 8.1L

P0132

HO2S Circuit High Voltage Bank 1 Sensor 1

PCM

DTC P0132 or P0152 in Engine Controls - 8.1L

P0134

HO2S Circuit Insufficient Activity Bank 1 Sensor 1

PCM

DTC P0134 or P0154 in Engine Controls - 8.1L

P0151

HO2S Circuit Low Voltage Bank 2 Sensor 1

PCM

DTC P0131 or P0151 in Engine Controls - 8.1L

P0152

HO2S Circuit High Voltage Bank 2 Sensor 1

PCM

DTC P0132 or P0152 in Engine Controls - 8.1L

P0154

HO2S Circuit Insufficient Activity Bank 2 Sensor 1

PCM

DTC P0134 or P0154 in Engine Controls - 8.1L

P0168

Engine Fuel Overtemperature

ECM

DTC P0168 in Engine Controls - 6.6L (LLY)

P0181

Fuel Temperature Sensor Performance

ECM

DTC P0181 in Engine Controls - 6.6L (LLY)

P0182

Fuel Temperature Sensor Circuit Low Voltage

ECM

DTC P0182 in Engine Controls - 6.6L (LLY)

or

DTC P0182 in Engine Controls - 7.8L

P0183

Fuel Temperature Sensor High Voltage

ECM

DTC P0183 in Engine Controls - 6.6L (LLY)

or

DTC P0183 in Engine Controls - 7.8L

P0192

Fuel Rail Pressure (FRP) Sensor Circuit Low Voltage

ECM

DTC P0192 in Engine Controls - 6.6L (LLY)

or

DTC P0192 in Engine Controls - 7.8L

P0193

Fuel Rail Pressure (FRP) Sensor Circuit High Voltage

ECM

DTC P0193 in Engine Controls - 6.6L (LLY)

or

DTC P0193 in Engine Controls - 7.8L

P0200

Injector Control Circuit

PCM

DTC P0200 in Engine Controls - 8.1L

P0201

Injector 1 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

or

DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 7.8L

P0202

Injector 2 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

or

DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 7.8L

P0203

Injector 3 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

or

DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 7.8L

P0204

Injector 4 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

or

DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 7.8L

P0205

Injector 5 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

or

DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 7.8L

P0206

Injector 6 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

or

DTC P0201, P0202, P0203, P0204, P0205, or P0206 in Engine Controls - 7.8L

P0207

Injector 7 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

P0208

Injector 8 Control Circuit

ECM

DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 in Engine Controls - 6.6L (LLY)

P0219

Engine Overspeed

ECM

DTC P0219 in Engine Controls - 7.8L

P0220

Throttle Position (TP) Sensor 2 Circuit

PCM

DTC P0220 in Engine Controls - 8.1L

P0230

Fuel Pump Relay Control Circuit

PCM

DTC P0230 in Engine Controls - 8.1L

P0234

Turbocharger Engine Overboost

ECM

DTC P0234 in Engine Controls - 6.6L (LLY)

or

DTC P0234 in Engine Controls - 7.8L

P0237

Turbocharger Boost Sensor Circuit Low Voltage

ECM

DTC P0237 in Engine Controls - 6.6L (LLY)

or

DTC P0237 in Engine Controls - 7.8L

P0238

Turbocharger Boost Sensor Circuit High Voltage

ECM

DTC P0238 in Engine Controls - 6.6L (LLY)

or

DTC P0238 in Engine Controls - 7.8L

P0299

Turbocharger Engine Underboost

ECM

DTC P0299 in Engine Controls - 6.6L (LLY)

P0300

Engine Misfire Detected

ECM

DTC P0300 in Engine Controls - 6.6L (LLY)

P0301

Cylinder 1 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0302

Cylinder 2 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0303

Cylinder 3 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0304

Cylinder 4 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0305

Cylinder 5 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0306

Cylinder 6 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0307

Cylinder 7 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0308

Cylinder 8 Misfire Detected

ECM

DTC P0301-P0308 in Engine Controls - 6.6L (LLY)

P0315

Crankshaft Position (CKP) System Variation Not Learned

PCM

DTC P0315 in Engine Controls - 8.1L

P0325

Knock Sensor (KS) Circuit

PCM

DTC P0325 in Engine Controls - 8.1L

P0327

Knock Sensor (KS) 1 Circuit Low Frequency

PCM

DTC P0327 or P0332 in Engine Controls - 8.1L

P0332

Knock Sensor (KS) 2 Circuit Low Frequency

PCM

DTC P0327 or P0332 in Engine Controls - 8.1L

P0335

Crankshaft Position (CKP) Sensor Circuit

ECM, PCM

    •  DTC P0335 in Engine Controls - 6.6L (LLY)
    •  DTC P0335 in Engine Controls - 7.8L
    •  DTC P0335 in Engine Controls - 8.1L

P0336

Crankshaft Position (CKP) Sensor Performance

ECM, PCM

DTC P0336 in Engine Controls - 6.6L (LLY)

or

DTC P0336 in Engine Controls - 8.1L

P0340

Camshaft Position (CMP) Sensor Circuit

ECM

DTC P0340 in Engine Controls - 6.6L (LLY)

P0341

Camshaft Position (CMP) Sensor Performance

ECM, PCM

DTC P0341 in Engine Controls - 6.6L (LLY)

or

DTC P0341 in Engine Controls - 8.1L

P0342

Camshaft Position (CMP) Sensor Circuit Low Voltage

PCM

DTC P0342 in Engine Controls - 8.1L

P0343

Camshaft Position (CMP) Sensor Circuit High Voltage

PCM

DTC P0343 in Engine Controls - 8.1L

P0351

Ignition Coil 1 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0352

Ignition Coil 2 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0353

Ignition Coil 3 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0354

Ignition Coil 4 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0355

Ignition Coil 5 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0356

Ignition Coil 6 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0357

Ignition Coil 7 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0358

Ignition Coil 8 Control Circuit

PCM

DTC P0351-P0358 in Engine Controls - 8.1L

P0370

High Resolution Circuit

ECM

DTC P0370 or P0374 in Engine Controls - 6.6L (LLY)

P0374

High Resolution System Performance

ECM

DTC P0370 or P0374 in Engine Controls - 6.6L (LLY)

P0381

Wait to Start Lamp Control Circuit

ECM

DTC P0381 in Instrument Panel, Gages and Console

P0382

Glow Plug/Heater Relay Control Circuit

ECM

DTC P0382 in Engine Controls - 7.8L

P0385

Crankshaft Position (CKP) Sensor B Circuit

ECM

DTC P0385 in Engine Controls - 7.8L

P0401

Exhaust Gas Recirculation (EGR) Flow Insufficient

ECM

DTC P0401 in Engine Controls - 6.6L (LLY)

P0403

Exhaust Gas Recirculation (EGR) Solenoid Control Circuit

ECM

DTC P0403 in Engine Controls - 6.6L (LLY)

P0404

Exhaust Gas Recirculation (EGR) Open Position Performance

ECM

DTC P0404 in Engine Controls - 6.6L (LLY)

P0405

Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage

ECM

DTC P0405 in Engine Controls - 6.6L (LLY)

P0406

Exhaust Gas Recirculation (EGR) Position Sensor Circuit High Voltage

ECM

DTC P0406 in Engine Controls - 6.6L (LLY)

P0443

Evaporative Emission (EVAP) Purge Solenoid Control Circuit

PCM

DTC P0443 in Engine Controls - 8.1L

P0461

Fuel Level Sensor 1 Performance

ECM, PCM

DTC P0461 in Instrument Panel, Gages, and Console

P0462

Fuel Level Sensor 1 Circuit Low Voltage

ECM, PCM

DTC P0462 in Instrument Panel, Gages, and Console

P0463

Fuel Level Sensor 1 Circuit High Voltage

PCM

DTC P0463 in Instrument Panel, Gages, and Console

P0500

Vehicle Speed Sensor (VSS) Circuit

ECM, PCM

DTC P0500 in Manual Transmission - ZF-S6-650

P0506

Idle Speed Low

PCM

DTC P0506 or P0507 in Engine Controls - 8.1L

P0507

Idle Speed High

PCM

DTC P0506 or P0507 in Engine Controls - 8.1L

P0512

Start Switch Circuit

ECM, PCM

DTC P0512 in Engine Electrical

P0522

Engine Oil Pressure (EOP) Sensor Circuit Low Voltage

ECM, PCM

DTC P0522 in Instrument Panel, Gages, and Console

P0523

Engine Oil Pressure (EOP) Sensor Circuit High Voltage

ECM, PCM

DTC P0523 in Instrument Panel, Gages, and Console

P0562

System Voltage Low

ECM, PCM

DTC P0562 in Engine Electrical

P0563

System Voltage High

ECM, PCM

DTC P0563 in Engine Electrical

P0567

Cruise Control Resume Switch Circuit

ECM, PCM

DTC P0567 in Cruise Control

P0568

Cruise Control Set Switch Circuit

ECM, PCM

DTC P0568 in Cruise Control

P0571

Cruise Control Brake Switch Circuit

ECM, PCM

DTC P0571 in Cruise Control

P0601

Control Module Read Only Memory (ROM)

ECM, PCM

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 6.6L (LLY)

or

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 8.1L

P0602

Control Module Not Programmed

ECM, PCM

P0603

Control Module Long Term Memory Reset

ECM

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 6.6L (LLY)

P0604

Control Module Random Access Memory (RAM)

ECM, PCM

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 6.6L (LLY)

or

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 8.1L

P0606

Control Module Internal Performance

ECM, PCM

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 7.8L

or

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 8.1L

P0608

Vehicle Speed Output Circuit

ECM, PCM

DTC P0608 in Instrument Panel, Gages, and Console

P0611

Fuel Injector Control Module Performance

ECM

DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687 in Engine Controls - 6.6L (LLY)

P0612

Fuel Injector Control Module (FICM) Relay Control Circuit

ECM

DTC P0612 in Engine Controls - 6.6L (LLY)

P0621

Generator L-Terminal Circuit

ECM

DTC P0621 in Engine Electrical

P0622

Generator F-Terminal Circuit

ECM, PCM

DTC P0622 in Engine Electrical

P0641

5-Volt Reference 1 Circuit

ECM, PCM

DTC P0641 in Engine Controls - 7.8L

or

DTC P0641 in Engine Controls - 8.1L

P0642

5-Volt Reference 1 Circuit Low Voltage

ECM

DTC P0642 in Engine Controls - 6.6L (LLY)

P0643

5-Volt Reference 1 Circuit High Voltage

ECM

DTC P0643 in Engine Controls - 6.6L (LLY)

P0650

Malfunction Indicator Lamp (MIL) Control Circuit

ECM, PCM

DTC P0650 in Engine Controls - 6.6L (LLY)

or

DTC P0650 in Engine Controls - 8.1L

P0651

5-Volt Reference 2 Circuit

ECM, PCM

DTC P0651 in Engine Controls - 7.8L

or

DTC P0651 in Engine Controls - 8.1L

P0652

5-Volt Reference 2 Circuit Low Voltage

ECM

DTC P0652 in Engine Controls - 6.6L (LLY)

P0653

5-Volt Reference 2 Circuit HIGH Voltage

ECM

DTC P0653 in Engine Controls - 6.6L (LLY)

P0654

Engine Speed Output Circuit

ECM, PCM

DTC P0654 in Instrument Panel, Gages, and Console

P0670

Glow Plug Control Module Circuit

ECM

DTC P0670 in Engine Controls - 6.6L (LLY)

P0671

Glow Plug 1 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0672

Glow Plug 2 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0673

Glow Plug 3 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0674

Glow Plug 4 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0675

Glow Plug 5 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0676

Glow Plug 6 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0677

Glow Plug 7 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0678

Glow Plug 8 Control Circuit

ECM

DTC P0671-P0678 in Engine Controls - 6.6L (LLY)

P0698

5-Volt Reference 3 Circuit Low Voltage

ECM

DTC P0698 in Engine Controls - 6.6L (LLY)

P0699

5-Volt Reference 3 Circuit High Voltage

ECM

DTC P0699 in Engine Controls - 6.6L (LLY)

P0700

Transmission Control Module (TCM) requested MIL Illumination

ECM

DTC P0700 in Engine Controls - 6.6L (LLY)

P0802

Transmission Control Module (TCM) MIL Request Circuit

ECM

DTC P0802 in Engine Controls - 6.6L (LLY)

P0833

Clutch Pedal Switch 2 Circuit

ECM

DTC P0833 in Manual Transmission - ZF-S6-650

P1087

Fuel Rail Pressure (FRP) Trim Too Low

ECM

DTC P1087 in Engine Controls - 7.8L

P1088

Fuel Rail Pressure (FRP) Trim Too High

ECM

DTC P1088 in Engine Controls - 7.8L

P1093

Fuel Rail Pressure Low During Power Enrichment

ECM

DTC P1093 in Engine Controls - 6.6L (LLY)

P1094

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

ECM

DTC P1094 in Engine Controls - 6.6L (LLY)

P1106

Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage

PCM

DTC P1106 in Engine Controls - 8.1L

P1107

Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage

PCM

DTC P1107 in Engine Controls - 8.1L

P1111

Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage

PCM

DTC P1111 in Engine Controls - 8.1L

P1112

Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage

PCM

DTC P1112 in Engine Controls - 8.1L

P1114

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage

PCM

DTC P1114 in Engine Controls - 8.1L

P1115

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage

PCM

DTC P1115 in Engine Controls - 8.1L

P1125

Accelerator Pedal Position (APP) System

ECM, PCM

    •  DTC P1125 in Engine Controls - 6.6L (LLY)
    •  DTC P1125 in Engine Controls - 7.8L
    •  DTC P1125 in Engine Controls - 8.1L

P1223

Injector 1 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1226

Injector 2 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1229

Injector 3 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1232

Injector 4 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1235

Injector 5 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1238

Injector 6 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1241

Injector 7 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1244

Injector 8 Output Circuit

ECM

DTC P1223, P1226, P1229, P1232, P1235, P1238, P1241, or P1244 in Engine Controls - 6.6L (LLY)

P1261

Injector Positive Voltage Control Circuit

ECM

DTC P1261 in Engine Controls - 7.8L

P1263

Injector Positive Voltage Control Circuit Group 1 Low Voltage

ECM

DTC P1263 in Engine Controls - 7.8L

P1264

Injector Positive Voltage Control Circuit Group 1 High Voltage

ECM

DTC P1264 in Engine Controls - 7.8L

P1265

Injector Positive Voltage Control Circuit Group 2 Low Voltage

ECM

DTC P1265 in Engine Controls - 7.8L

P1266

Injector Positive Voltage Control Circuit Group 2 High Voltage

ECM

DTC P1266 in Engine Controls - 7.8L

P1271

Accelerator Pedal Position (APP) Sensor 1-2 Correlation

ECM

DTC P1271 in Engine Controls - 7.8L

P1272

Accelerator Pedal Position (APP) Sensor 2-3 Correlation

ECM

DTC P1272 in Engine Controls - 7.8L

P1273

Accelerator Pedal Position (APP) Sensor 1-3 Correlation

ECM

DTC P1273 in Engine Controls - 7.8L

P1277

Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

ECM

DTC P1277 in Engine Controls - 7.8L

P1278

Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

ECM

DTC P1278 in Engine Controls - 7.8L

P1282

Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage

ECM

DTC P1282 in Engine Controls - 7.8L

P1283

Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage

ECM

DTC P1283 in Engine Controls - 7.8L

P1287

Accelerator Pedal Position (APP) Sensor 3 Circuit Low Voltage

ECM

DTC P1287 in Engine Controls - 7.8L

P1288

Accelerator Pedal Position (APP) Sensor 3 Circuit High Voltage

ECM

DTC P1288 in Engine Controls - 7.8L

P1293

Injector Circuit Low to High Current Transition Time Bank 1

ECM

DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687 in Engine Controls - 6.6L (LLY)

P1294

Injector Circuit Low to High Current Transition Time Bank 2

ECM

DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687 in Engine Controls - 6.6L (LLY)

P1295

Injector Circuit High to Low Current Transition Time Bank 1

ECM

DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687 in Engine Controls - 6.6L (LLY)

P1296

Injector Circuit High to Low Current Transition Time Bank 2

ECM

DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687 in Engine Controls - 6.6L (LLY)

P1404

Exhaust Gas Recirculation (EGR) Closed Position Performance

ECM

DTC P1404 in Engine Controls - 6.6L (LLY)

P1431

Fuel Level Sensor 2 Performance

ECM, PCM

DTC P1431

P1432

Fuel Level Sensor 2 Circuit Low Voltage

ECM, PCM

DTC P1432

P1433

Fuel Level Sensor 2 Circuit High Voltage

ECM, PCM

DTC P1433

P1516

Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

PCM

DTC P1516 in Engine Controls - 8.1L

P1550

Fuel Injector Control Module System Voltage

ECM

DTC P1550 in Engine Controls - 6.6L (LLY)

P1574

Stop Lamp Switch Circuit

PCM

DTC P1574 in Cruise Control

P1621

Control Module Long Term Memory Performance

ECM, PCM

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 6.6L (LLY)

or

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 7.8L

P1637

Generator L-Terminal Circuit

PCM

DTC P1637 in Engine Electrical

P1638

Generator F-Terminal Circuit

PCM

DTC P1638 in Engine Electrical

P1646

5-Volt Reference 3 Circuit

ECM

DTC P1646 in Engine Controls - 7.8L

P1658

Fuel Injector Control Module Driver Performance

ECM

DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687 in Engine Controls - 6.6L (LLY)

P1687

Fuel Injector Control Module Driver Stuck On

ECM

DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687 in Engine Controls - 6.6L (LLY)

P2003

Mass Air Flow (MAF) Sensor Circuit Low Voltage

ECM

DTC P2003 in Engine Controls - 7.8L

P2004

Mass Air Flow (MAF) Sensor Circuit High Voltage

ECM

DTC P2004 in Engine Controls - 7.8L

P2005

Power Take Off (PTO) Sensor Circuit High Voltage

ECM

DTC P2005 in Engine Controls - 7.8L

P2007

Turbocharger Boost Control Solenoid Control Circuit High Voltage

ECM

DTC P2007 in Engine Controls - 7.8L

P2008

Turbocharger Boost Control Solenoid Control Circuit Low Voltage

ECM

DTC P2008 in Engine Controls - 7.8L

P2011

Injector Positive Voltage Control Circuit Group 3

ECM

DTC P2011 in Engine Controls - 7.8L

P2012

Injector Positive Voltage Control Circuit Group 4

ECM

DTC P2012 in Engine Controls - 7.8L

P2066

Fuel Level Sensor 2 Performance

ECM, PCM

DTC P2066 in Instrument Panel, Gages, and Console

P2067

Fuel Level Sensor 2 Circuit Low Voltage

ECM, PCM

DTC P2067 in Instrument Panel, Gages, and Console

P2068

Fuel Level Sensor 2 Circuit High Voltage

ECM, PCM

DTC P2068 in Instrument Panel, Gages, and Console

P2101

Control Module Throttle Actuator Position Performance

PCM

DTC P2101 in Engine Controls - 8.1L

P2108

Throttle Actuator Control (TAC) Module Performance

PCM

DTC P2108 in Engine Controls - 8.1L

P2120

Accelerator Pedal Position (APP) Sensor 1 Circuit

PCM

DTC P2120 in Engine Controls - 8.1L

P2121

Accelerator Pedal Position (APP) Sensor 1 Performance

PCM

DTC P2121 in Engine Controls - 8.1L

P2122

Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

ECM

DTC P2122 in Engine Controls - 6.6L (LLY)

P2123

Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

ECM

DTC P2123 in Engine Controls - 6.6L (LLY)

P2125

Accelerator Pedal Position (APP) Sensor 2 Circuit

PCM

DTC P2125 in Engine Controls - 8.1L

P2127

Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage

ECM

DTC P2127 in Engine Controls - 6.6L (LLY)

P2128

Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage

ECM

DTC P2128 in Engine Controls - 6.6L (LLY)

P2132

Accelerator Pedal Position (APP) Sensor 3 Circuit Low Voltage

ECM

DTC P2132 in Engine Controls - 6.6L (LLY)

P2133

Accelerator Pedal Position (APP) Sensor 3 Circuit High Voltage

ECM

DTC P2133 in Engine Controls - 6.6L (LLY)

P2135

Throttle Position (TP) Sensor 1-2 Correlation

PCM

DTC P2135 in Engine Controls - 8.1L

P2138

Accelerator Pedal Position (APP) Sensor 1-2 Correlation

ECM

DTC P2138 in Engine Controls - 6.6L (LLY)

P2139

Accelerator Pedal Position (APP) Sensor 1-3 Correlation

ECM

DTC P2139 in Engine Controls - 6.6L (LLY)

P2140

Accelerator Pedal Position (APP) Sensor 2-3 Correlation

ECM

DTC P2140 in Engine Controls - 6.6L (LLY)

P2146

Injector Positive Voltage Relay Control Circuit Group 1

ECM

DTC P2146 in Engine Controls - 6.6L (LLY)

P2149

Injector Positive Voltage Relay Control Circuit Group 2

ECM

DTC P2149 in Engine Controls - 6.6L (LLY)

P2227

Barometric Pressure (BARO) Sensor Performance

ECM

DTC P2227 in Engine Controls - 6.6L (LLY)

P2228

Barometric Pressure (BARO) Sensor Circuit Low Voltage

ECM

DTC P2228 in Engine Controls - 6.6L (LLY)

P2229

Barometric Pressure (BARO) Sensor Circuit High Voltage

ECM

DTC P2229 in Engine Controls - 6.6L (LLY)

P2563

Turbocharger Boost Control Position Sensor Performance

ECM

DTC P2563 in Engine Controls - 6.6L (LLY)

P2564

Turbocharger Boost Control Position Sensor Circuit Low Voltage

ECM

DTC P2564 in Engine Controls - 6.6L (LLY)

or

DTC P2564 in Engine Controls - 7.8L

P2565

Turbocharger Boost Control Position Sensor Circuit High Voltage

ECM

DTC P2565 in Engine Controls - 6.6L (LLY)

or

DTC P2565 in Engine Controls - 7.8L

P2610

Control Module Ignition Off Timer Performance

ECM, PCM

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 6.6L (LLY)

P2636

Fuel Transfer Pump Flow Insufficient

ECM, PCM

DTC P2636 in Engine Controls - 6.6L (LLY)

P2900

Turbocharger Boost System Performance

ECM

DTC P2900 in Engine Controls - 7.8L

P2901

Exhaust Gas Recirculation (EGR) Position Sensor Performance

ECM

DTC P2901 in Engine Controls - 7.8L

P2902

Exhaust Gas Recirculation (EGR) Open Position Performance

ECM

DTC P2902 in Engine Controls - 7.8L

P2903

Exhaust Gas Recirculation (EGR) Flow Insufficient

ECM

DTC P2903 in Engine Controls - 7.8L

P2920

Engine Controls Ignition Relay Feedback Circuit

ECM

DTC P2920 in Engine Controls - 7.8L

P2921

Fuel Rail Pressure (FRP) Too High

ECM

DTC P2921 in Engine Controls - 7.8L

P2922

Fuel Rail Pressure (FRP) Too High

ECM

DTC P2922 in Engine Controls - 7.8L

P2923

Fuel Rail Pressure Low During Power Enrichment

ECM

DTC P2923 in Engine Controls - 7.8L

U0073

Loss of CAN Serial Data Communication

EBCM, ECM, FICM, TCM

DTC U0073 in Computer/Integrating Systems

U0100

Lost Communications With Engine Control Module (ECM)

TCM

DTC U0100-U0299 in Computer/Integrating Systems

U0101

Lost Communications With Transmission Control Module (TCM)

ECM

DTC U0100-U0299 in Computer/Integrating Systems

U0105

Lost Communications With Fuel Injection Control Module (FICM)

ECM

DTC U0100-U0299 in Computer/Integrating Systems

U0106

Lost Communications With Glow Plug Control Module (GPCM)

ECM

DTC U0100-U0299 in Computer/Integrating Systems

U0107

Lost Communication with Throttle Actuator Control (TAC) Module

PCM

DTC U0107 in Engine Controls - 8.1L

U1000

Class 2 Data Link

ECM, EBCM, SDM, IPC, RCDLR, SDGM, TCM, Chime Module

DTC U1000 and U1255 in Computer/Integrating Systems

U1016

Lost Communication with ECM/PCM/VCM

Radio, EBCM, SDM, Chime Module

DTC U1001-U1254 in Computer/Integrating Systems

U1024

Lost Communication With Transmission Control Module (TCM)

EBCM, IPC,

DTC U1001-U1254 in Computer/Integrating Systems

U1031

Lost Communication With Serial Data Gateway (SDG)

SDM, Radio, ECM

DTC U1001-U1254 in Computer/Integrating Systems

U1040

Loss of With Electronic Brake Control Module (EBCM)

ESC, IPC, SDM

DTC U1001-U1254 in Computer/Integrating Systems

U1088

Lost Communication with Sensing and Diagnostic Module (SDM)

IPC, SDGM

DTC U1001-U1254 in Computer/Integrating Systems

U1096

Lost Communication with Instrument Panel Cluster (IPC)

SDM, ECM, SDGM, Chime Module

DTC U1001-U1254 in Computer/Integrating Systems

U1111

Lost Communication with Multifunction Alarm Module/Chime module (MAM)

IPC

DTC U1001-U1254 in Computer/Integrating Systems

U1128

Lost Communication with Radio

IPC, SDGM

DTC U1001-U1254 in Computer/Integrating Systems

U1176

Lost Communications with Remote Control Door Lock Receiver (RCDLR)

IPC, SDGM

DTC U1001-U1254 in Computer/Integrating Systems

U1255

Class 2 Data Link

ECM, EBCM, SDM, IPC, RCDLR, SDGM, TCM

DTC U1000 and U1255 in Computer/Integrating Systems

U1300

Class 2 Data Link Low

ECM, SDM, IPC, RCDLR, SDGM, TCM, Chime Module

DTC U1300, U1301, or U1305 in Computer/Integrating Systems

U1301

Class 2 Data Link High

ECM, SDM, IPC, RCDLR, SDGM, TCM, Chime Module

DTC U1300, U1301, or U1305 in Computer/Integrating Systems

U1305

Class 2 Data Link Low or High

ECM, SDM, RCDLR, SDGM, TCM,

DTC U1300, U1301, or U1305 in Computer/Integrating Systems

U1800

Lost Communications With Fuel Injector Control Module (FICM)

EBCM, ECM, TCM

DTC U1800, U2105, U2106, or U2108 in Computer/Integrating Systems

U2100

Controller Area Network (CAN) Bus Communication

EBCM, ECM, FICM, TCM

DTC U2100 in Computer/Integrating Systems

U2104

Controller Area Network (CAN) Bus Reset Counter Overrun

EBCM, ECM, FICM, TCM

DTC U2104 in Computer/Integrating Systems

U2105

Lost Communications With Engine Control System

EBCM, FICM, TCM

DTC U1800, U2105, U2106, or U2108 in Computer/Integrating Systems

U2106

Lost Communications With Transmission Control System

EBCM, ECM, FICM

DTC U1800, U2105, U2106, or U2108 in Computer/Integrating Systems

U2108

Lost Communications With ABS/TCS Control System

ECM, FICM, TCM

DTC U1800, U2105, U2106, or U2108 in Computer/Integrating Systems