No running lights on trailer

[roadrunner255]

Hello all,
I have a 2020 thor compass 23tw, and noticed that I no longer have running lights or license plate lights.

No difference if I use the 7 pin to 4 pin trailer light adapter.

Mini fuses check out, but I am unable to check the low profile jcase fuses.

Anyone else have the same issue ans know which fuse solve the problem?

Lights were working.

Cheers

 

[PS89]

Likely to be either the Trailer Module TRM) or the jumper harness between it and the trailer adapter plug on the rear.

 

[paulwadley]

You can google search your chassis to locate all of the trailer fuses and then check each and everyone. I had an issue once and found that one of my wires had fallen onto the exhaust pipe on my tow vehicle, melted and grounded out the lights. It happened every time I hit a bump after changing the fuse. Very frustrating until I located the burnt wire.

Paul

 

[roadrunner255]

Thanks,
I have a list of all the fuses and relays for the diesel.

Determined no voltage on the brown wire.

Still need to check the low profile jcase fuses that are a pain to remove.

Was just checking if anyone else might have had a similar issue.

 

[PS89]

Based on the 2020 factory documents for the Transit Connect, there are no individually fused circuits for the trailer electrical setup. There is a single 40A fuse that runs the entire TRM which handles the distribution of power to the individual output wires at the rear trailer connector.



The TRM gets its commands by MS-CAN messages routed through the gateway module.



Per troubleshooting instructions, you need to scan the TRM for any fault codes and then go from there.

 

[grizzlyclaus]

PS89, the Transit Connect is NOT the same vehicle chassis the Compass and Gemini are built on.

 

[PS89]

PS89, the Transit Connect is NOT the same vehicle chassis the Compass and Gemini are built on.

Arg! You're right. It's based on the full-sized Transit.


Mea culpa!

 

[roadrunner255]

Found this link.

https://youtu.be/52evCvI922A?si=4VvCMlKGOvVU0OB1