Troubleshooting Interior Lights on Exiess Exhibitor Trailer Not Working When Connected 2021 Ram 2500

Question:

Lights in an exiess exhibitor trailer are not working when hooked up to my 2021 ram 2500 . Marker,brake,and turn lights work perfectly.

asked by: Mike H

Expert Reply:

The interior lights on your Exiess Exhibitor trailer are going to be powered of either your charge line or an onboard battery on the trailer. You can use a Test Light # PTW2993 or 7-Way Tester # PK12741 to ensure you have power coming from your 7-way to the trailer. Otherwise you will need to check your fuses to see if the charge line circuit on your 2021 Ram 2500 is damaged or missing.

If the charge line is working the lights inside the trailer were likely wired to a separate battery which the charge line was not connected too. You will need to find this battery and verify if it is dead or if it has its own fuse panel for the interior lights.

expert reply by: Bud M