Operation CHARM: Car repair manuals for everyone.

Level Adjustment

Fault code 1577

Overtemperature

Diagnostic conditions
- Ignition on
- Internal level control module function test

Possible cause of fault
- The compressor switches off as a result of overtemperature (upper limit is exceeded)
- Compressor temperature sensor faulty
- Level control module faulty

Affected pins
Level control module, plug B:
- Pin 85 'temperature sensor'
- Pin 93 'temperature sensor ground'

Level control system compressor, plug A:
- Pin 3 'temperature sensor'
- Pin 4 'temperature sensor ground'

Diagnosis/troubleshooting

Compressor temperature