Instrument cluster diagnosis 911 Carrera (996)

Measure the voltage between plug I on outside temperature sensor, pin 1 and ground

Voltmeter display: 0 V

Switch off ignition

Ohmmeter on outside temperature sensor plug, pin 2 and ground Ohmmeter on instrument cluster plug I pin 17 and plug on outside

If no fault is established in the wires or on the outside temperature sensor, replace the instrument cluster.

Test point 14

Outside temperature display

Engine off PST2 display:

Tester display approximately equals the ambient temperature

See test point 13

There is a time delay in the PST 2 for the temperature increase between sensor value and display.

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