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Fault code 1042: Diagnosis/troubleshooting

NOTE:

The brake, parking and direction indicator lights are incorrectly actuated if the coding is incorrect, e.g. if there is a mix-up between RoW and USA (North America). This leads to a fault entry in the trailer hitch control module and possibly also in the vehicle electrical system control module. 

DIAGNOSIS/TROUBLESHOOTING PROCEDURE

Work instruction Display OK If not OK
3 Code trailer hitch control module correctly → End