Reading Off The Parameters

Data can be read off from the Trailer module (TRM) using this function.

Battery voltage 

Reads off the level of the power supply to the control module.

Input signal 

Reads off the status of the directly connected stop lamp signal from the central electronic module (CEM).

Output signals 

Reads off the status of the output signals to the cable harness for the tow hitch.

Trailer connector 

Reads off if the trailer connector is connected to the output on the cable harness for the tow hitch.