Checking the diagnostic trouble codes (DTCs)

Check that the fuse for the Seat heating module (SHM) is intact.

The diagnostic trouble code (DTC) may occur together with diagnostic trouble codes (DTCs) for other components that communicate with the climate control module (CCM) via LIN bus 2.

Check whether the diagnostic trouble code (DTC) has been stored together with other diagnostic trouble codes (DTCs) for other components on the climate control unit.

Select one of the following options:

1. The diagnostic trouble code (DTC) is stored together with diagnostic trouble codes (DTCs) for components on LIN bus 2 (CCM-DD30-CCM-DD34)

   Refer to Checking LIN bus 2 and connector 

2. The diagnostic trouble code (DTC) is not stored together with diagnostic trouble codes (DTCs) for other components on LIN bus 2.

   Refer to Checking the wiring and component