Fault Code 0050

Fault code 0050

Front evaporator temperature sensor

Diagnostic conditions
- Ignition on
- Battery positive voltage OK (11.4 to 14.5 V)
- Internal function test completed on air-conditioning system regulator control unit

Possible fault causes
- No or incorrect basic setting
- Short circuit to ground
- Open circuit/short circuit to B+
- Servo motor flap stiff
- Servo motor faulty
- Front air-conditioning system regulator faulty

Affected pins
Air-conditioning system regulator control unit, front: connectors A and E
- Connector A: Pin 10 'Temp. sensor signal (signal for evaporator temperature sensor)'
- Connector E: Pin 12 'Ground sensor'

Diagnosis/troubleshooting