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Super_Dave
Explorer
Sep 04, 2012

Dodge - TIPM & Modulite ?

I'm trying to solve the apparently common problem of failing TIPM on my 2006 Dodge 3500 for trailer signal and brake lights. It seems a lot of guys are using a Modulite bypass to get around it. My question is for any of you that have done this fix. How do I address 2 - 7 pin plugs, two modulites?

8 Replies

  • It has been a while since I made my repair and wanted to circle back with some feedback. There has been no further issues since switching to the Modulelite. I also feel good about knowing if a lighting issue should occur, I only have one path I have to follow to chase it down.
  • If they designed in fuse links as part of the PCB traces...plain dumb. I've done
    that and is the fail safe after several other safety's go before getting to that
    level, but I don't see that from the description

    I'll not own any vehicle with the kind of power panel.

    It sounds like a good idea and at first thought of the circuit breaker panel of
    a house, but not a good idea after reading that after a small number of trips,
    it can be reset 3 times to then be locked out and have to buy a new module

    Think of a house contractor installing a circuit breaker panel that
    will need replacing the whole thing after 3 trips of one breaker, say
    the washing machine/dryer/stove/etc...or the garage wall plug that has
    all kinds of stuff plugged into it...battery charger, electric high
    pressure washer, shop vac, etc

    Plain and simple to me that the OEM has seen that they have their buyer over
    a barrel and then screwing of their customers forcing them to buy a new one

    Key is that they can 'reset' it. Says it is software/firmware. Most likely both
    and the PROM will lock up after X number of resets. That PROM has
    firmware that is patented and encrypted. Bet you can't buy just that PROM
    Also bet that the fuse-able link is inside that PROM and is how they
    lock it up. Bet the factory just replaces that PROM and sends it back
    out as a 'rebuilt' unit

    I can now see a large after market business bypassing this predatory assembly
    with a properly designed one with circuit breakers that do NOT count the number
    of times tripped. Or fused.

    Not rocket science either, as most of the components for that after market
    mod can be bought at Radio Shack or some such
  • According to Dodge and those that have suffered from them, the TIPM can be reset "up to 3 times". Sometimes it's only twice though. The problem is all the current for those lamp functions go through traces on a PCB. After a few overloads the traces burn open.
  • I feel for you, that is one really bad design. FWIW it usually involves overloading a circut somewhere with a attached camper, trailer or just about any added on device.
    I'm not familiar with the Modulite, but I assume you use it as a added fuse panel thus reliving the TIPM of overloading. A TIPM will reset many times and has a built in number of resets. $900 is just plain crazy but the electronic demands of todays vehicles requires intervention at some point. Again bad design much like a FICM with low voltage from OB. Just a C&P sample off a Dodge Forum.

    " This is why i`ve been preachin to all the younger guys, DONT GO BOLTING STUFF ON YOUR VEHICLES ANYMORE, IT`LL COST YOU DEARLY IF YOU DO...!!!!! Say good-bye to aftermarket add-on`s (ie lighting, stereo power amps, on and on...!!!!) If you HAVE to add on accessories, do it the smart way, add/build a fuse box of your own, just off the battery. Dont go pluggin anything into any factory things unless you got $900 bucks you wanna throw away for nothing on a new TIPM, especially if the warranty is up on your vehicle. Trust me, today they know if a module has been over loaded...! "

    See he even called you young :B
    Let us know how it turns out especially since I own a 06....
    Good Luck
    Rick
  • It would depend on where the second was wired in. The modulite is designed to be installed at the 7 pin conn so if the second one is fed off the first, it will be protected. If a 7 pin was installed prior to the one at the back then you'll need two.
  • Either way, my stumbling block at the moment is whether or not one of these approaches would address both 7 pin plugs that I have or if I have to use one of the prescribed solutions twice.
  • The flash only increases the current handling (and hastens its demise), not the fact that the stupid thing has to be replaced after it's overloaded a couple of times or required a dealer to "reset" it. Something a simple fuse took care of before.
    I have no experience with the Modulite but it looks like a good fix that takes the TIPM away from carrying the load.
    Some have simply added relays, tripped by the lamp circuits from the TIPM and using the Trailer Charge wire to actually power those lights.