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.

Work Instruction 1: