Fuel level sensor 2: Diagnosis/troubleshooting
WARNING: This page is about a different car, the 2006 Porsche Cayenne, 2005 Porsche Cayenne, 2004 Porsche Cayenne, and 2003 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS/TROUBLESHOOTING PROCEDURE
| Work instruction | Display OK | If not OK | ||
|---|---|---|---|---|
| 1 | If fault codes 0771 and 0779 (0562) 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 fuel level sensor 2 (left) and instrument cluster for short circuit to B+: |
|
< 0.3 V Go to Step 3 |
Repair/replace wiring harness. → End |
| 3 | Check wiring between fuel level sensor 2 (left) and instrument cluster for short circuit to ground: |
|
∞ Ω Go to Step 4 |
Repair/replace wiring harness. → End |
| 4 | Check wiring between fuel level sensor 2 (left) and instrument cluster for open circuit: |
|
< 5 Ω Go to Step 5 |
Repair/replace wiring harness. → End |
| 5 | Replace fuel level sensor 2 (left). | → End | Go to Step 6 | |
| 6 | Replace instrument cluster. | → End | ||