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Diagnostic Trouble Code Definitions

DTC IDENTIFICATION

DTC

System Affected

HO2S-1 Heater Circuit, Low Input

HO2S-1 Heater Circuit, High Input

HO2S-2 Heater Circuit, Low Input

HO2S-2 Heater Circuit, High Input

Mass Air Flow (MAF) Sensor Circuit Performance Problem

Mass Air Flow (MAF) Sensor Circuit, Low Input

Mass Air Flow (MAF) Sensor Circuit, High Input

Manifold Absolute Pressure (MAP) Sensor Circuit, Low Input

Manifold Absolute Pressure (MAP) Sensor Circuit, High Input

Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem

Intake Air Temperature (IAT) Sensor Circuit, Low Input

Intake Air Temperature (IAT) Sensor Circuit, High Input

Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Problem

Engine Coolant Temperature (ECT) Sensor Circuit, Low Input

Engine Coolant Temperature (ECT) Sensor Circuit, High Input

Throttle Position (TP) Sensor Circuit Performance Problem

Throttle Position (TP) Sensor Circuit, Low Input

Throttle Position (TP) Sensor Circuit, High Input

Insufficient Coolant Temperature For Closed Loop Operation

Coolant Thermostat Inoperative

HO2S No. 1 Circuit, Low Input

HO2S No. 1 Circuit, High Input

HO2S No. 1 Circuit, Slow Response

HO2S No. 1 Circuit, No Activity Detected

Heated Oxygen Sensor No. 2 Circuit, Low Voltage

Heated Oxygen Sensor No. 2 Circuit - High Voltage.

Heated Oxygen Sensor No. 2 Circuit - No Activity Detected.

Total Fuel Trim Is Greater Than Allowed Specification

Total Fuel Trim Is Less Than Allowed Specification

Random Misfire Detected

Cylinder No. 1 Misfire Detected

Cylinder No. 2 Misfire Detected

Cylinder No. 3 Misfire Detected

Cylinder No. 4 Misfire Detected

Knock Sensor Circuit, Low Input

Knock Sensor Circuit, High Input

Crankshaft Position (CKP) Sensor Circuit Malfunction

Camshaft Position (CMP) Sensor Circuit Malfunction

EGR - Insufficient Flow Detected.

EGR - Excessive Flow Detected.

EGR Valve Circuit Malfunction

Catalyst System Low Efficiency

EVAP system - Incorrect Purge Flow

EVAP System - Small Leak Detected.

EVAP Circuit, Purge Control Valve Circuit Malfunction

EVAP System Vent Control - Circuit Malfunction

EVAP Fuel Pressure Sensor - Low Input.

EVAP Fuel Pressure Sensor - High Input.

EVAP Circuit, Large Leak Detected

Fuel Level Sensor Circuit Performance Problem

Fuel Level Sensor Circuit, High Input

Fuel Level Sensor Circuit - Intermittent

Evap System - High Purge Flow

Vehicle Speed Sensor (VSS) Malfunction

Idle Air Control - RPM Lower Than Expected.

Idle Air Control - RPM Higher Than Expected.

Internal Control Module Memory Check Sum Error

P0705 ⁽³⁾

Automatic Transmission

P0720 ⁽³⁾

Automatic Transmission

P0741 ⁽³⁾

Automatic Transmission

P0743 ⁽³⁾

Automatic Transmission

P0751 ⁽³⁾

Automatic Transmission

P0753 ⁽³⁾

Automatic Transmission

P0756 ⁽³⁾

Automatic Transmission

P0758 ⁽³⁾

Automatic Transmission

Starter Signal Circuit Malfunction

PCM Back-Up Power Supply Malfunction

P1875 ⁽³⁾

Automatic Transmission

⁽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 DIAGNOSTICS article in AUTOMATIC TRANSMISSIONS.