90-22Fault code 9133 · Terminal 61 low when engine running

911 Turbo (996) Instrument cluster K20 90 90-22Fault code 9133 Terminal 61 low when engine running Diagnostic conditions • Engine running Possible cause of fault ♦The voltage value terminal 61 is lower than the battery voltage (generator faulty) ♦Short circuit to ground in the wire between instrument cluster and generator (terminal 61) Affected terminals Plug A, terminal 12 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check input voltage termi- ♦Switch off ignition Battery voltage ⇒ Step 2 nal 61 ⇒ Step 4 ♦Pull plug A off the instrument cluster ♦Start engine (idle position) ♦Measure voltage between plug A on instrument cluster pin 12 and ground 2 Check wire between gen- ♦Switch off ignition ∞ Ω Repair wiring har- erator and instrument ⇒ Step 3 ness ♦Pull plug off the generator cluster for short to → End ♦Measure the resistance between ground plug on generator pin L and ground 3 ♦Replace generator → End 4 ♦Replace instrument cluster → End 9025 Fault code 9133 90-22 page 1 Printed in Germany – 8, 2001 9133xk20