Trailer Hitch

Fault code 1042

Control module not coded

Diagnostic conditions
- Ignition on
- Trailer hitch control module, internal function test

Possible causes of fault
- A new, uncoded control module has been installed

Affected pins
-

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.