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Fault code 9123: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING - FAULT CODE 9123

Work instruction Display OK If not OK
1 Check wiring between oil level indicator sensor and instrument cluster for short to B+
  • Switch off ignition
  • Pull off plug B on instrument cluster
  • Pull off plug on oil level indicator sensor
  • Switch on ignition
  • Measure voltage between pin 2 of plug B on instrument cluster and ground
  • Measure voltage between pin 18 of plug B on instrument cluster and ground
0 V
Step 2
Repair wiring harness
-> End
2 Check wire between oil level indicator and instrument cluster for short to ground
  • Switch off ignition
  • Pull off plug B on instrument cluster.
  • Measure resistance between pin 2 of plug B on instrument cluster and ground

Measure resistance between pin 18 of plug B on instrument and ground
Step 3 Repair wiring harness
-> End
3 Check wiring between oil level indicator sensor and instrument cluster for open circuit
  • Switch off ignition
  • Measure resistance between pin 2 of plug B on instrument cluster and pin 4 of oil level sensor plug.
  • Measure resistance between pin 18 of plug B on instrument cluster and pin 2 of plug on oil pressure indicator sensor
< 5
Step 4
Repair wiring harness.
-> End
4 Check oil level indicator sensor
  • Switch off ignition
  • Re-connect plug to oil level indicator sensor
  • Measure resistance between pins 2 and 18 of plug B on instrument cluster
5 up to 10 at 20 °C. Step 6 Step 5
5
  • Replace oil level indicator sensor
-> End Step 6
6
  • Replace instrument cluster
-> End