Fault Code 0490

Fault Code 0490

Blower outlet sensor, rear right

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

Possible causes of fault
- Short circuit to ground
- Open circuit/short circuit to B+
- Short circuit between lines
- Blower outlet sensor faulty
- Rear air-conditioning system regulator faulty

Affected pins
Air-conditioning system regulator control module, rear: Plug D
- Pin 6 Ground sensor
- Pin 10 Outlet temperature sensor (signal for rear right blower outlet sensor)

Diagnosis/troubleshooting

Work Instruction 1 - 3:

Work Instruction 4 - 7: