Oil level sensor: Diagnosis/troubleshooting
DIAGNOSIS/TROUBLESHOOTING PROCEDURE
| Work instruction | Display OK | If not OK | ||
|---|---|---|---|---|
| 1 | If fault codes 0438, 0771 and 0779 are present, check ground supply to 'pin 7' of instrument cluster plug A | Go to Step 2 | Repair/replace wiring harness. → End |
|
| 2 | Check wiring between oil level sensor and instrument cluster for short circuit to B+: |
|
< 0.3 V Go to Step 3 |
Repair/replace wiring harness. → End |
| 3 | Check wiring between oil level sensor and instrument cluster for short circuit to ground: |
|
∞ Ω Go to Step 4 |
Repair/replace wiring harness. → End |
| 4 | Check wiring between oil level sensor and instrument cluster for open circuit: |
|
< 5 Ω Go to Step 5 |
Repair/replace wiring harness. → End |
| 5 | Replace oil level sensor. | → End | Go to Step 6 | |
| 6 | Replace instrument cluster. | → End | ||