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I cleaned the TCCM contacts, then was in the position to hear it click on, but alas, the 4 Hello and 4 LO lights flashed when I tried to interact them. Rats! Action 2, checked many of the fuses.. All Alright, then identified a broken actuator vacume tube broken near the actator itself.
Heck, if ya desire to “hack” it collectively, you can generally clear away the module through the aspect with the transfer case, Minimize a hole from the floor and place an real shifter from the flooring and fix it to the pin within the transfer case (I wouldn’t recommend this on an ’03… probably go away that trick for one which is falling aside and you simply don’t want to invest A further dime on it!) — You'll be able to shift into 4WD manually (AGAIN… NOT Proposed on a Road car!!).
I’ve tried out stopping and Placing it in park just before switching and, Even though this did work several of the time, not each and every time. Also, during the time it will require to change, the truck tugs a little to the proper. Identical to it had been a little bit away from alignment. Having said that, following it switches, the tugging stops.
It quite well could possibly be a mechanical dilemma inside the transfer situation triggering the motor to attract abnormal current and blow the fuse. Does the motor do the job effectively, when NOT hooked up into the transfer scenario?
My very first considered is TCCM problems. Disconnecting the battery is a regular method to reset any “OB (On-Board) Computer system” (even though it’s ordinarily advised to disconnect for thirty minutes — just which means you don’t rush it and it doesn’t reset). So, what you’re performing every time you do This is certainly you are resetting the TCCM. From there, it works, however you never ever know for how much time.
Doesn’t audio superior. It sounds like what I just went via — and it turned out for being the gears/forks within the transfer scenario. I 1st recognized that I experienced problem popping out of 4WD, then I began noticing 4Hi “slipping” out and in.
Scott states: January two, 2009 at eight:03 pm Okay no corrosion no wetness in any way also when i inquire it to change i nevertheless listed here it click for the tccm. Also a brand new issue I forgot it should be in nuetral to shift into or from four low when its in nuetral i also can listed here the modest electrical motor around the transfer circumstance my upcoming thought is to remove the motor in the transfer circumstance to see if I'm able to shift it maunlly but that consists of alot of dissmanlting there’s plenty of matters in the way in which Is that this important.
The very first thing I'd personally do is disconnect the battery and Permit it sit for any 1/2 hour or so — then reconnect the battery and cycle the ignition from on to off 3 times — This could reset the TCCM.
Hmmm… it’s tough to say — it could be as simple as the encoder motor sign lines getting corroded/weakened (Test the schematics in the main submit), or it could be the transfer situation itself. If the lights perform as they should, then this tells me the 4WD process is engaging, doing what it should really. I believe the transfer scenario isn't shifting properly. As I stated to the poster higher than, it could be time to own your transfer circumstance checked by a tranny shop.
Nicely, that’s one that I haven’t heard nevertheless. The “ATS” fuse (which happens to be marked “ATC” on this schematic) provides 12VDC to two large orange wires within the TCCM (marked as pins C18 and C19 over the schematic). As I reported, I haven’t viewed this issue ahead of, so I haven’t traced that Section of the program. I am able to only suppose (yeah, I understand!) the due to the fact these wires supply 12VDC, They're accustomed to run heavier points including the encoder motor (5VDC, that's the light guage orange wire, is Visit This Web-site utilized for logic — ie. to run the “chips” over the circuit board). Hopefully, you may see where I’m going with this. I’m just hoping to think about it logically — If your fuse is blowing that materials 12VDC, what while in the 4WD process would use 12VDC?
How to test When the swap is lousy? I’m not sure which swap you’re speaking about, but no, I never. I’d only Google it more often than not to search out what I’m in search of. Every little thing which i ever wished to exam was uncovered by Google.
You’ll discover before long more than enough from the mechanic. Inside the meantime, there’s two pages of Q&A earlier mentioned that you could browse.
bought warmth likely in garage, will commence ripping my motor vehicle aside! Ohh I forgot we are obtaining a storm of 12 inches, improved commence shovelin’ best regards Doug
I eliminated the battery tray uncovered the diaphram and it is Doing the job. could my problem be vacuum? I guess I didn’t appear difficult enough because I didn’t see the vacuum swap by distributor and it’s very restricted in there . Any ideas? Many thanks,Tim