Well after about 4 months design work and contacting about 7 parts vendors to buy quality parts, I have finished my TIPM Saver Tow plug relay box. I have 60 amp rated, silver contact relays, An American company fuse panel and 15 amp auto-reset breakers for each of the FOUR circuits. American made 16 gauge wire and connectors. 3M self sealing, heat shrink, butt connectors to safely tie into the factory wire loom under the back of the truck and not risk moisture and road salt intrusion of the wiring.
The FOUR circuits consist of: RIGHT turn/stop, LEFT turn/stop, RUNNING lights and the BACK-UP lights.
The BACK-UP light circuit can be used for the trailer AND if I want to add more back-up lights to the back of the truck without over loading the factory circuits.
This relay box will eliminate the TIPM (which costs $711. 00 from the dealer plus $200. 00 install and program) from controlling the tow plugs. I set it up to protect BOTH the 7 pin and the 4 pin factory tow plugs.
I will run a 10 gauge primary wire to the stud where the TIPM gets its power and protect it with a 40 amp, auto-reset, circuit breaker.
I set it up to mount up under the bed behind the driver side rear wheel.
By the way, I ALSO am using spike suppressed relays to prevent any feedback issues from the relay coil to the TIPM.
I did a half hour submerged test and no moisture entered.
This now keeps me from worrying about hooking up someones trailer that I don't know whether the lights work or might have a short.
I built eleven of them. One is for me.
Any interest, PM meOR check the TDR classifieds for more info.
The FOUR circuits consist of: RIGHT turn/stop, LEFT turn/stop, RUNNING lights and the BACK-UP lights.
The BACK-UP light circuit can be used for the trailer AND if I want to add more back-up lights to the back of the truck without over loading the factory circuits.
This relay box will eliminate the TIPM (which costs $711. 00 from the dealer plus $200. 00 install and program) from controlling the tow plugs. I set it up to protect BOTH the 7 pin and the 4 pin factory tow plugs.
I will run a 10 gauge primary wire to the stud where the TIPM gets its power and protect it with a 40 amp, auto-reset, circuit breaker.
I set it up to mount up under the bed behind the driver side rear wheel.
By the way, I ALSO am using spike suppressed relays to prevent any feedback issues from the relay coil to the TIPM.
I did a half hour submerged test and no moisture entered.
This now keeps me from worrying about hooking up someones trailer that I don't know whether the lights work or might have a short.
I built eleven of them. One is for me.
Any interest, PM meOR check the TDR classifieds for more info.
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