Found out today that the battery on front of a 3023 TM must be connected to the frame from the negative of the battery.My back-up lights were not working and was testing and looking at the manual and happen to see that in the line schematic that it was never hooked-up. It's hooked-up now The problem with the back-up lights turn out to be a bad Bargman 7 -circuit trailer end ! The Rip
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PREVIOUS ONWNER OF A 2004 3023 Trailmanor 2004 1500 Dodge Ram Quad Cab Timbren SES and Supersprings 4-Rancho RS9000X shocks 3 inch front lift kit Drawtite front hitch Valley Odyssey brake controller
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Your TM battery hookup - or even a complete lack of a TM battery - should have no effect on the TM's backup lights, which are powered directly from the tow vehicle. Keep looking at that Bargman connector.
Bill
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2020 2720QS (aka 2720SL)
2014 Ford F-150 4WD 5.0L Bill's Tech Stuff album
When I initially installed the Trimetric meter shunt in the negative battery lead I didn't move the ground wire going to the frame. What I found out is there was a significant amount of current flowing through the wire connecting the negative battery terminal to the frame.
In the case of my TM the bare wire was crimped onto a lug with a poor mechanical connection. I soldered the wire to the lug so it would be a better electrical connection to the frame.
Ray
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04 - 3023 with 180W solar panels - Morningstar SunSaver MPPT Charge Controller - TriMetric Battery Monitor
- 02 Chevrolet Tahoe 5.3L Equalizer Hitch - Prodigy Brake Controller
Battery Negative
The problem with the back-up lights turn out to be a bad Bargman 7 -circuit trailer end ! The Rip 
Linear Mode
