Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CCM-B1A6987

Condition
Climate control module (CCM) checks the status of the air humidity sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Message from the air humidity sensor is missing.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position I and II.





Substitute value
- None.

Possible source
- Open circuit on the cable between Climate control module (CCM) and the passenger compartment fan.
- Internal fault in air humidity sensor.

Fault symptom[s]
- Mist on rear window and door mirrors