Diagnostic Modes
Self-diagnostic system can detect engine control system malfunctions and store related trouble codes. Trouble codes, including intermittent codes, are stored in ECM memory and are available for retrieval unless codes have been cleared.
Self-diagnostic system uses single or dual Light Emitting Diodes (LED), located on ECM. See ECM LOCATION table. For system application, see SELF-DIAGNOSTIC SYSTEM table.
ECM LOCATIONS
| Application | Location |
|---|---|
| Pathfinder | Under Passenger Seat |
SELF-DIAGNOSTIC SYSTEM
| Application | CHECK ENGINE Light | LED Colors (No.) |
|---|---|---|
| Pathfinder | Calif. & Fed. | Red & Green (2) |