Fault Code 30, - As of My 2002

Fault Code 30, - As Of MY 2002

AC - signal unclear

Diagnostic conditions

NOTE:
- This fault can be determined only during a system test
- Perform system test

Possible cause of fault
- Fuse D 6 faulty
- Fuse C 7 faulty
- Refrigerant pressure too low or non-existent
- Line fault between pressure switch, relay for fresh-air blower, relay for magnetic clutch, DME control module or air-conditioning compressor
- Pressure switch faulty
- Relay for magnetic clutch faulty
- Relay for fresh-air blower faulty
- Magnetic coupling faulty
- Air-conditioning system regulator faulty

Affected pins
Plug B, pin 16

Diagnosis/troubleshooting

NOTE: " After troubleshooting, a system test must be carried out.

Diagnosis/troubleshooting (Part 1):

Diagnosis/troubleshooting (Part 2):

Diagnosis/troubleshooting (Part 3):

Diagnosis/troubleshooting (Part 4):

Diagnosis/troubleshooting (Part 5):

Diagnosis/troubleshooting (Part 6):

Diagnosis/troubleshooting (Part 7):