Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TRM-1A04

Condition




The trailer module (TRM) checks internal functions in the control module.
The diagnostic trouble code (DTC) is stored if the control module registers an internal fault.
The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute value
- None.

Possible source
- Fault in the trailer module (TRM).

Fault symptom[s]
- Faulty function of trailer lamps
- The information lamp is lit
- Message in the display.