90-14Fault code 9120 · Outside temperature

911 Turbo (996) Instrument cluster K20 90 90-14Fault code 9120 Outside temperature Diagnostic conditions • Ignition on Possible cause of fault ♦Outside temperature sensor faulty ♦Short circuit to voltage/ground or open circuit in the wiring between the instrument cluster and the outside temperature sen- sor Affected terminals Plug B, terminals 1 and 17 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Visual inspection ♦Check outside temperature sen- ⇒ Step 2 Replace outside sor for external damage temperature sensor in the case of dam- ♦Check plug connection for con- age or repair plug tact and corrosion connection → End 2 Check output voltage of ♦Switch off ignition approx. 3.4 V ⇒ Step 3 the instrument cluster ⇒ Step 6 ♦Unplug connector from the out- side temperature sensor ♦Switch on ignition ♦Measure voltage between pin 1 and pin 2 of the plug of the out- side temperature sensor 3 Check wire between ♦Switch off ignition ∞ Ω Repair wiring har- instrument cluster and ⇒ Step 4 ness ♦Pull plug B off the instrument outside temperature sen- → End cluster sor for short to ground ♦Measure resistance between plug B on instrument cluster pin 1 and ground 9025 Fault code 9120 90-14 page 1 Printed in Germany – 8, 2001 9120xk20