NO -
Intermittent failure, check for loose wires or poor connections in the in-car temperature sensor circuit.?
5. Turn the ignition switch to LOCK (0).
6. Remove the humidity/in-car temperature sensor See: Heating and Air Conditioning/Cabin Temperature Sensor / Switch/Service and Repair,
and test it.
Is the in-car temperature sensor OK?
YES -
With the humidity/in-car temperature sensor disconnected, go to step 7.
NO -
Replace the humidity/in-car temperature sensor See: Heating and Air Conditioning/Cabin Temperature Sensor / Switch/Service and Repair.?
7. Disconnect climate control unit connector A (40P).
8. Check for continuity between climate control unit connector A (40P) terminal No. 5 and humidity/in-car temperature sensor 4P connector
terminal No. 4.
Is there continuity?
YES -
Go to step 9.
NO -
Repair an open in the wire between the climate control unit and the in-car temperature sensor.?
9. Check for continuity between climate control unit connector A (40P) terminal No. 8 and humidity/in-car temperature sensor 4P connector
