Diagnostic Trouble Code Definitions
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| Fault Code | Definition |
|---|---|
| Code 02 | Reconnected ECM |
| Code 12 | Mass Airflow Sensor Fault |
| Code 14 | Coolant Temperature Sensor Fault |
| Code 15 | Fuel Temperature Sensor Fault |
| Code 17 | Throttle Position Sensor Fault |
| Code 18 | Throttle Position Sensor Input High/Mass Airflow Sensor Low |
| Code 19 | Throttle Position Sensor Input Low/Mass Airflow Sensor High |
| Code 21 | Tune Select Resistor Fault |
| Code 23 | Fuel Supply Fault |
| Code 28 | Engine Air Leak |
| Code 29 | ECM Memory Fault |
| Code 34 | Injector - Bank "A" (Left Bank) Fault |
| Code 36 | Injector - Bank "B" (Right Bank) Fault |
| Code 40 | Misfire - Bank "A" (Left Bank) Fault |
| Code 44 | Lambda (Oxygen) Sensor - Bank "A" (Left Bank) Fault |
| Code 45 | Lambda (Oxygen) Sensor - Bank "B" (Right Bank) Fault |
| Code 48 | Idle Speed Stepper Motor Fault |
| Code 50 | Misfire - Bank "B" (Right Bank) Fault |
| Code 59 | Group Faults 23/28 |
| Code 68 | Vehicle Speed Sensor Input Fault |
| Code 69 | Park/Neutral Position Switch Fault |
| Code 88 | Canister Purge Valve Leak |
DIAGNOSTIC TROUBLE CODE ORDER OF SYSTEM PRIORITY
| Fault Code | Definition |
|---|---|
| Code 02 | Reconnected ECM Fault |
| Code 29 | ECM Memory Fault |
| Code 44 | Left Bank Heated Oxygen Sensor Fault (Bank "A") |
| Code 45 | Right Bank Heated Oxygen Sensor Fault (Bank "B") |
| Code 25 | Ignition Misfire |
| Code 40 | Left Bank Misfire Fault (Bank "A") |
| Code 50 | Right Bank Misfire Fault (Bank "B") |
| Code 12 | Mass Airflow Sensor Fault |
| Code 21 | Tune Select Resistor Fault |
| Code 34 | Left Bank Injector Fault (Bank "A") |
| Code 36 | Right Bank Injector Fault (Bank "B") |
| Code 14 | Engine Coolant Temperature Sensor Fault |
| Code 17 | Throttle Position Sensor Fault |
| Code 18 | Throttle Position Sensor Input High/Mass Airflow Sensor Input Low Fault |
| Code 19 | Throttle Position Sensor Input Low/Mass Airflow Sensor Input High Fault |
| Code 88 | Canister Purge Valve Leak Fault |
| Code 28 | Engine Air Leak Fault |
| Code 23 | Fuel Supply Fault |
| Code 48 | Idle Air Control Valve Fault |
| Code 68 | Vehicle Speed Sensor Input Fault |
| Code 69 | Park/Neutral Position Switch Fault |
| Code 59 | Group Faults 23/28 |
| Code 15 | Fuel Temperature Sensor Fault |