NOTE: Bank 1 refers to engine performance component located on left cylinder bank. Bank 2 refers to engine performance component located on right cylinder bank.

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC

System Affected

P0031 ⁽¹⁾

Bank 1 Heated Oxygen Sensor No. 1 Heater Circuit - Low Voltage

P0032 ⁽¹⁾

Bank 1 Heated Oxygen Sensor No. 1 Heater Circuit - High Voltage

P0037 ⁽¹⁾

Bank 1 Heated Oxygen Sensor No. 2 Heater Circuit - Low Voltage

P0038 ⁽¹⁾

Bank 1 Heated Oxygen Sensor No. 2 Heater Circuit - High Voltage

P0051 ⁽¹⁾

Bank 2 Heated Oxygen Sensor No. 1 Heater Circuit - Low Voltage

P0052 ⁽¹⁾

Bank 2 Heated Oxygen Sensor No. 1 Heater Circuit - High Voltage

P0057 ⁽¹⁾

Bank 2 Heated Oxygen Sensor No. 2 Heater Circuit - Low Voltage

P0058 ⁽¹⁾

Bank 2 Heated Oxygen Sensor No. 2 Heater Circuit - High Voltage

P0101 ⁽¹⁾

Mass Air Flow Sensor - Performance Problem

P0102

Mass Air Flow Sensor Circuit - Low Voltage

P0103

Mass Air Flow Sensor Circuit - High Voltage

P0107 ⁽¹⁾

Manifold Absolute Pressure Sensor Circuit - Low Input

P0108 ⁽¹⁾

Manifold Absolute Pressure Sensor Circuit - High Input

P0111 ⁽¹⁾

Intake Air Temperature Sensor Circuit - Range/Performance Problem

P0112

Intake Air Temperature Sensor Circuit - Low Input

P0113

Intake Air Temperature Sensor Circuit - High Input

P0116 ⁽¹⁾

Engine Coolant Temperature Sensor Circuit - Range/Performance Problem

P0117

Engine Coolant Temperature Sensor Circuit - Low Input

P0118

Engine Coolant Temperature Sensor Circuit - High Input

P0121 ⁽¹⁾

Throttle Position Sensor Circuit - Range/Performance Problem

P0122

Throttle Position Sensor Circuit - Low Input

P0123

Throttle Position Sensor Circuit - High Input

P0125 ⁽¹⁾

Insufficient Coolant Temperature For Closed Loop Operation

P0128

Coolant Thermostat Malfunction

P0131 ⁽¹⁾

Bank 1 HO2S No. 1 Circuit - Low Voltage

P0132 ⁽¹⁾

Bank 1 HO2S No. 1 Circuit - High Voltage

P0133 ⁽¹⁾

Bank 1 HO2S No. 1 Circuit - Slow Response Time

P0134 ⁽¹⁾

Bank 1 HO2S No. 1 Circuit - No Activity Detected

P0137 ⁽¹⁾

Bank 1 HO2S No. 2 - Low Voltage

P0138 ⁽¹⁾

Bank 1 HO2S No. 2 Circuit - High Voltage

P0140 ⁽¹⁾

Bank 1 HO2S No. 2 Circuit - No Activity Detected

P0151 ⁽¹⁾

Bank 2 HO2S No. 1 Circuit - Low Voltage

P0152 ⁽¹⁾

Bank 2 HO2S No. 1 Circuit - High Voltage

P0153 ⁽¹⁾

Bank 1 HO2S No. 2 Circuit - Slow Response

P0154 ⁽¹⁾

Bank 2 HO2S No. 1 Circuit - No Activity Detected

P0157 ⁽¹⁾

Bank 2 HO2S No. 2 - Low Voltage

P0158 ⁽¹⁾

Bank 2 HO2S No. 2 Circuit - High Voltage

P0160 ⁽¹⁾

Bank 2 HO2S No. 2 Circuit - No Activity Detected

P0171 ⁽¹⁾

Bank 1 Fuel System Too Lean

P0172 ⁽¹⁾

Bank 1 Fuel System Too Rich

P0174 ⁽¹⁾

Bank 2 Fuel System Too Lean

P0175 ⁽¹⁾

Bank 2 Fuel System Too Rich

P0300 ⁽²⁾

Random Misfire Detected

P0301 ⁽²⁾

Cylinder No. 1 - Misfire Detected

P0302 ⁽²⁾

Cylinder No. 2 - Misfire Detected

P0303 ⁽²⁾

Cylinder No. 3 - Misfire Detected

P0304 ⁽²⁾

Cylinder No. 4 - Misfire Detected

P0305 ⁽²⁾

Cylinder No. 5 - Misfire Detected

P0306 ⁽²⁾

Cylinder No. 6 - Misfire Detected

P0327

Knock Sensor Circuit - Low Input

P0328

Knock Sensor Circuit - High Input

P0335

Crankshaft Position Sensor - Circuit Malfunction

P0340

Camshaft Position Sensor - Circuit Malfunction

P0401 ⁽¹⁾

EGR Insufficient Flow

P0402 ⁽¹⁾

EGR Excessive Flow Detected

P0403

EGR Flow Circuit Malfunction

P0420 ⁽¹⁾

Bank 1 Catalyst System - Low Efficiency

P0430 ⁽¹⁾

Bank 2 Catalyst System - Low Efficiency

P0441 ⁽¹⁾

EVAP Control System - Incorrect Purge Flow

P0442 ⁽¹⁾

EVAP Control System - Small Leak Detected

P0455 ⁽¹⁾

EVAP Control System - Gross Leak Detected

P0443 ⁽¹⁾

EVAP Control System - Purge Control Valve Circuit Malfunction

P0446 ⁽¹⁾

EVAP Control System - Vent Valve Control Circuit Malfunction

P0449 ⁽¹⁾

EVAP Control System Vent Valve - Solenoid Circuit Malfunction

P0451 ⁽¹⁾

EVAP System Pressure Sensor - Range/Performance

P0452 ⁽¹⁾

EVAP System Pressure Sensor - Low Input

P0453 ⁽¹⁾

EVAP System Pressure Sensor - High Input

P0461 ⁽¹⁾

Fuel Level Sensor Circuit - Performance Problem

P0463 ⁽¹⁾

Fuel Level Sensor Circuit - High Input

P0464 ⁽¹⁾

Fuel Level Sensor Circuit - Intermittent Problem

P0496 ⁽¹⁾

EVAP System - Flow During Non-Purge

P0500 ⁽¹⁾

Vehicle Speed Sensor Malfunction

P0506 ⁽¹⁾

Idle Air Control System - RPM Lower Than Expected

P0507 ⁽¹⁾

Idle Air Control System - RPM Higher Than Expected

P0601

Internal Control Module Memory Check Sum Error

P0705 ⁽³⁾

Transmission Range Sensor Circuit Malfunction

P0707 ⁽³⁾

Transmission Range Sensor Circuit - Low Input

P0717 ⁽³⁾

Input/Turbine Speed Sensor Circuit - No Signal

P0722 ⁽³⁾

Output Speed Sensor Circuit - No Signal

P0741 ⁽³⁾

Torque Converter Clutch Circuit - Range/Performance Or Stuck Off

P0742 ⁽³⁾

Torque Converter Clutch Circuit - Stuck On

P0743 ⁽³⁾

Torque Converter Clutch Circuit - Solenoid Malfunction

P0751 ⁽³⁾

Shift Solenoid "A" - Performance Or Stuck Off

P0752 ⁽³⁾

Shift Solenoid "A" - Performance Or Stuck On

P0753 ⁽³⁾

Shift Solenoid "A" - Electrical Malfunction

P0756 ⁽³⁾

Shift Solenoid "B" - Performance Or Stuck Off

P0757 ⁽³⁾

Shift Solenoid "B" - Performance Or Stuck On

P0758 ⁽³⁾

Shift Solenoid "B" - Electrical Malfunction

P1450

Barometric Pressure Sensor - Circuit Malfunction

P1451 ⁽¹⁾

Barometric Pressure Sensor - Performance Problem

P1500 ⁽¹⁾

Starter Signal Circuit Malfunction

P1510

Engine Control Module Back-Up Power Supply Malfunction

P1740 ⁽³⁾

Cruise Control Signal Circuit

P1875 ⁽³⁾

4WD Low Switch Circuit Malfunction

⁽¹⁾	These DTCs require 2 consecutive drive cycles to set MIL.

⁽²⁾	If misfire is sufficient enough to cause catalyst damage, Malfunction Indicator Light (MIL) should flash. If misfire is not sufficient enough to cause catalyst damage, DTC requires 2 consecutive drive cycles to set MIL

⁽³⁾	See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.

Safety Warning

Diagnostic Trouble Code Definitions

Use the Manual With the Right Hardware

When to See a Mechanic