Originally Posted by Francine 60
We could use any help on a problem we are experiencing. We have a 2010 Fleetwood Terra 34B and a 2010 Jeep Liberty. When we hook up the Jeep by Blue Ox tow bar and an RVI Brake system the Jeep lights are very dim.
We had a 2009 Damon Tuscany Diesel with the Blue Ox and the Brake Buddy previously. Didn't have any issues.
Francine & Ian
A couple of things here. If you have a VOM or, Volt Ohm Meter, you can do a couple of easy tests to start finding out where, your problem may start from. If you have one, then begin by turning on the tail lights in the motor home, with no pigtail hooked up to the connector on the back of the coach. Set the VOM to 12V and, making sure you have your black lead hooked or clipped to a good ground, check the pin that is the running lights in the 7 pin connector, if you have a seven pin. If something less, check what ever pin is the steady "ON" and, read the voltage.
Record the voltage reading and, then plug in the pig tail and, do the same test. Now, compare voltage readings. If the same, you're not losing any voltage through the pig tail. But, the plug on the front of the toad, may be causing some resistance which, would cause your dim lights. Finally, pull the bulb in the tail light and see what the voltage there is. Record the voltage to compare.
A bad ground is the root cause of about 90% of most vehicle electrical problems, especially in lighting. So, check the total grounding from the 7-pin, through the pigtail, through the toad plug, and any connections on the way to the toad's tail lights. Good luck and let us know what you find out.