Vehicle Electrical System (BNSG)
Fault code 1320Air-conditioning system regulator control module
Diagnostic conditions
- Ignition on
- Internal control module function test
Possible causes of fault
- 'Air conditioning control module' Read out fault memory to locate faults.
- 'No signal/communication' No message from air conditioning control module on CAN comfort.
Affected pins
Plug 'A' on vehicle electrical system control module:
- Pin 1 'CAN comfort (high)'
- Pin 2 'CAN comfort (low)'
Diagnosis/troubleshooting
NOTE: If there is no incoming signal/message via CAN comfort using several control modules, CAN comfort must be checked for open or short circuits.
