Fault code 9123: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING - FAULT CODE 9123

Work instruction			Display OK	If not OK
1	Check wiring between sensor for oil level indicator and instrument cluster for short to B+	Switch off ignition Disconnect connector B from the instrument cluster Disconnect connector on sensor for oil level indicator Switch on ignition Measure voltage between connector B on instrument cluster pin 2 and ground Measure voltage between connector B on instrument cluster pin 18 and ground	0 V Step 2	Repair wiring harness -> End
2	Check wire between oil level filler and instrument cluster for short to ground	Disconnect connector B from the instrument cluster Measure resistance between connector B on instrument cluster pin 2 and ground	Step 3	Repair wiring harness -> End
3	Check wiring between sensor for oil level indicator and instrument cluster for open circuit	Switch off ignition Measure resistance between connector B on the instrument cluster pin 2 and plug on outside temperature sensor pin 1 Measure resistance between connector B on the instrument cluster pin 18 and plug on the sensor of oil pressure indicator, pin 2	< 5 Step 4	Repair wiring harness -> End
4	Check sensor for oil level indicator	Switch off ignition Connect connector to sensor for oil level indicator again Measure resistance on connector B of the instrument cluster between pin 2 and pin 18	18 to 25 Step 6	Step 5
5	Replace sensor for oil level indicator		-> End
6	Replace instrument cluster		-> End