Trouble Diagnosis Chart for Symptoms
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
If 4WD warning lamp turns ON, perform self-diagnosis. Refer to "SELF-DIAGNOSTIC PROCEDURE ".
TROUBLE DIAGNOSIS CHART
| Symptom | Condition | Check item | Reference page |
|---|---|---|---|
| 4WD shift indicator lamp and 4LO indicator lamp do not turn ON (4WD shift indicator lamp and 4LO indicator lamp check) |
Ignition switch: ON | Power supply and ground for transfer control unit | |
| Transfer shut off relay | |||
| Combination meter | |||
| 4WD WARNING LAMP DOES NOT TURN ON (4WD WARNING LAMP CHECK) | Ignition switch: ON | Power supply and ground for transfer control unit | |
| Transfer shut off relay | |||
| Combination meter | |||
| 4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DOES NOT CHANGE | Engine running | 4WD shift switch | |
| Wait detection switch | |||
| 4LO switch | |||
| ATP switch | |||
| Transfer inner parts | |||
| ATP WARNING LAMP DOES NOT TURN ON | Engine running | CAN communication line | |
| 4WD shift switch | |||
| PNP switch signal | |||
| ATP switch | |||
| Combination meter | |||
| Transfer inner parts | |||
| 4WD SHIFT INDICATOR LAMP REPEATS FLASHING | Engine running | Wait detection switch | |
| 4LO switch | |||
| Transfer inner parts | |||
| 4WD WARNING LAMP FLASHES SLOWLY Slow flashing: 1 time/2 seconds |
While driving | Tire size is different between front and rear of vehicle. |