Instrument Cluster

Fault code 1320

Air-conditioning control module

Diagnostic conditions
- Ignition on
- Internal function test on instrument cluster

Possible causes of fault
- No signal/communication (no signal from air-conditioning control module on CAN comfort)

Affected pins
Instrument cluster, plug B:
- Pin 27 'CAN comfort (high)'
- Pin 28 'CAN comfort (low)'

Diagnosis/troubleshooting

NOTE: If there is no incoming signal via CAN comfort using several control modules, CAN comfort must be checked for open or short circuits. Refer to 'Checking instructions/CAN data bus (Rep. Gr. 9700)'.