B1109

Fault code in A9/5 (Electric refrigerant compressor) control unit


Possible cause:

- A9/5 (Electric refrigerant compressor)
Affected functions:

- Engine diagnosis
- Engine output

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Test 1: Check component A9/5 (Electric refrigerant compressor).

1. Check component A9/5 (Electric refrigerant compressor).
Test component A9/5 (Electric refrigerant compressor) through control module N22/1 (AAC [KLA] control unit).
Possible cause and remedy

- Check actual value of component A9/5 (Electric refrigerant compressor) in control module N22/1 (AAC [KLA] control unit).
End of test