Fault Code 1231

Fault code 1231

Blower outlet sensor, front right footwell

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+
- Blower outlet sensor faulty
- Front air-conditioning system regulator faulty

Affected pins
Air-conditioning system regulator control module, front: Plugs A and E
- Plug A: Pin 6 'Outlet temperature sensor (signal for blower outlet sensor, front right footwell)'
- Plug E: Pin 12 'Ground sensor'

Diagnosis/troubleshooting