Instrument cluster K20 911 Turbo (996)90 · Diagnosis/troubleshooting

Instrument cluster K20 911 Turbo (996)90 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check wiring between ♦Switch off ignition 0 V Repair wiring har- sensor for oil level indica- ⇒ Step 2 ness ♦Disconnect connector B from tor and instrument cluster → End the instrument cluster for short to B+ ♦Disconnect connector on sensor for oil level indicator ♦Switch on ignition ♦Measure voltage between con- nector B on instrument cluster pin 2 and ground ♦Measure voltage between con- nector B on instrument cluster pin 18 and ground 2 Check wire between oil ♦Disconnect connector B from ∞ Ω Repair wiring har- level filler and instrument the instrument cluster ⇒ Step 3 ness cluster for short to → End ♦Measure resistance between ground connector B on instrument clus- ter pin 2 and ground 3 Check wiring between ♦Switch off ignition < 5Ω Repair wiring har- sensor for oil level indica- ⇒ Step 4 ness ♦Measure resistance between tor and instrument cluster → End connector B on the instrument for open circuit 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 4 Check sensor for oil level ♦Switch off ignition 18 Ω to 25 Ω ⇒ Step 5 indicator ⇒ Step 6 ♦Connect connector to sensor for oil level indicator again ♦Measure resistance on connec- tor B of the instrument cluster between pin 2 and pin 18 5 ♦Replace sensor for oil level indicator → End 6 ♦Replace instrument cluster → End 90-17 page 2 9025 Fault code 9123 9123xk20 Printed in Germany – 18, 2002