Fault Code 35

Fault Code 35

Centre Vent Potentiometer
- Disconnect the DEFROST VENT servo yellow, 5-way connector.
- Test the 5 V supply to the potentiometer at the air distribution connector (black 12-way), pin 9 (positive) and pin 2 (ground).

If there is no 5 volt supply, inspect the harness for open circuit or short circuit to ground. If no harness faults are apparent, renew the Air Conditioning Control Module (A/CCM).


NOTE: The A/CCM provides a common 5 V output and ground to all servos, i.e. all servo potentiometers are fed by a 5 V rail. If all servos are inoperable check the A/CCM outputs and harness, renew the A/CCM.


Check resistance between potentiometer connector pins 9 and 2 at air distribution box connector (black 12-way), value should be 6 K Ohms ± 10% at 20 °C.

Measure the resistance from the potentiometer wiper (pin 3) to pins 9 and 2 respectively. Resistances should read:

Resistence Table:

If the resistance measured falls outside the said limits, renew the potentiometer.