90-19Fault code 9130 · Supply voltage

911 Turbo (996) Instrument cluster K20 90 90-19Fault code 9130 Supply voltage Diagnostic conditions • Engine running Note! The fault memory status (present / not present) is always updated when the motor is running. Possible cause of fault ♦Battery voltage too low Affected terminals Plug B, terminals 2 and 18 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check battery ♦Examine battery ⇒ Step 2 Charge or replace battery → End 2 Check input voltage termi- ♦Switch off ignition Battery voltage Corrosion in the nal 15 ⇒ Step 3 plug connection or ♦Pull plug A off the instrument contact resistance cluster in the supply lead. ♦Switch on ignition Check and repair ♦Measure voltage between plug A wiring harness on instrument cluster pin 3 and → End ground 3 Check input voltage termi- ♦Measure voltage between plug B Battery voltage Corrosion in the nal 30 on instrument cluster pin 2 and ⇒ Step 4 plug connection or ground contact resistance in the supply lead. ♦Measure voltage between plug B Check and repair on instrument cluster pin 18 and wiring harness. ground 4 Check ground points ♦Measure the resistance between < 5 Ω Check or repair wir- plug A pin 1 and ground → End ing harness → End ♦Measure the resistance between plug A pin 17 and ground 9025 Fault code 9130 90-19 page 1 Printed in Germany – 8, 2001 9130xk20