Fault Code 21, - As of My 2002

Fault Code 21, - As Of MY 2002

Outside temperature sensor - short circuit to B+/short circuit to ground

Diagnostic conditions
- Ignition on
- No control module fault stored
- No fault with power supply sensors (5 V) stored

Possible cause of fault
- Short circuit to B+/ground/between one another or open circuit in the wiring between the air-conditioning system regulator and outside temperature sensor
- Outside temperature sensor faulty
- Air-conditioning system regulator faulty

Affected pins
Connector B, pin 5 and pin 9

Diagnosis/troubleshooting

Diagnosis/troubleshooting (Part 1):

Diagnosis/troubleshooting (Part 2):

Diagnosis/troubleshooting (Part 3):