Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TRM-U201449

Condition
The trailer module (TRM) checks internal functions in the control module.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Internal components do not work.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Control module supplied with power.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- None.

Possible source
- Damaged Trailer module (TRM).

Fault symptom[s]
- JV, Trailer lighting/Does not work