Level Adjustment

Fault code 1770

Compressor temperature sensor

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

Possible cause of fault
- Short circuit to B+ in the wiring of pin 85 of the level control module
- Short circuit to ground in the wiring of pin 85 of the level control module
- Open circuit in the wiring of pin 85 of the level control module
- Level control module receives implausible signal from compressor
- Compressor temperature sensor faulty
- Level control module faulty

Affected pins
Level control module, plug B:
- Pin 85
- Pin 93

Level control system compressor, plug A:
- Pin 3
- Pin 4

Diagnosis/troubleshooting

Compressor temperature