Fault Code 0818

Fault Code 0818

Evaporator temperature sensor

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

Possible causes of fault
- Short circuit to ground
- Open circuit/short circuit to B+
- Temperature sensor faulty
- Front air-conditioning system regulator control module faulty

Affected pins
- Manual air conditioning

Air-conditioning system regulator control module, front: Plugs C and E
- Plug C: Pin 21 Temp. sensor signal (signal for evaporator temperature sensor)
- Plug E: Pin 12 Ground sensor

Diagnosis/troubleshooting
- Manual air conditioning

Work Instruction 1 - 5:

Work Instruction 6 - 9: