one) Permit’s start off with the easy things — have you checked your fuses? Don’t suppose that Because the fuses are labeled 4WD that they're the only ones for your 4WD technique! Fuse 10 (on my 2003 Blazer) is with the courtesy lights — but guess what? Additionally, it controls the logic aspect of your TCCM (+5VDC). Pin 6 (thinner orange wire) must develop +5VDC and may be Incredibly hot All of the time (meaning you should be ready to examine +5VDC at stake anytime, vital on or off). The two big orange wires are your +12VDC strains and are controlled from your 10A fuse located in spot #fifteen.
Hello Les — I’m intending to need to say no as Raymond not has them — once more, I apologize for not backing them up.
By the way, the supplier explained to me that 4Lo usually can not be turned on unless you put the motor vehicle in the neutral. If somehow automobile goes into 4Lo by itself, just put it from the neutral position, and you may switch out 4Lo.
What you explain looks like the ported vacuum change (Notice: this change is only on 1999 and up autos). I’m undecided within the “Listening to a thing running†— what does it sound like?
need to i be unplugging my tccm and resetting the procedure after i alter to encoder motor. I assumed it absolutely was a transfer circumstance proplem for the reason that I assumed it was binding up and never letting teh encoder motor begin in 2wd.
When you look at the schematics, you'll be able to begin to see the motor is just “managed†by the TCCM by means of signal wires. I suppose it’s possible that if among the list of motor wires ended up to generally be shorted it may induce damage to the TCCM — do I think This can be the scenario?
This spot was wonderful!! Nice operate carried out to my automobile Albi and Gabby was a Element of The good personnel they may have. Ideally won't be back but anybody demands system do the job accomplished to their car or truck I am sending them right here ASAP!!
I hope this thread remains to be alive. In any case, I've problem having from 4HI. I've read through all of this discussion and Experimented with a lot of things. I replaced the vacuum switch on the transfer circumstance(mine was stuck). Then I checked all vacuum lines(some ended up cracked And that i changed). Pulled the encoder motor and cleaned it/took aside and re greased/sealed.
two) the vacuum switch also communicates with the TCCM — no vacuum and also your lights will most likely flash continuously while striving to engage 4wd, but received’t engage until eventually all 4wd parts, Once more, communicate with one another.
I am aware I’ve possibly just rambled on and informed you very little — perfectly, that was only my believed procedure when trying to locate a problem. I can only hope it aided. Allow me to know the way you make out. If I consider the rest, I'll update this submit.
Many thanks for that instructions on uploading pictures. Can you make sure you include this to my original submit. I’d truly like some assistance on this.
.for per day or two, then the module, took it apart the whole detail…that worked for a while, now it’s something else…not the module it’s been checked, anywhere else on this point which could bring about issues with 4 wheel generate…utilized a take a look at mild there’s energy there, Even though the lights don’t occur on…make sure you aid the snow are going to be slipping shortly, and I hope this Winter season I may have the 4×4 I payed for…
Scott says: January 2, 2009 at eight:03 pm Okay no corrosion no wetness in the slightest degree also when i inquire it to change i even now below it click on with the tccm. Also a whole new matter I forgot it 24 hour wheel alignment near me needs to be in nuetral to shift into or away from 4 reduced when its in nuetral i may also here the small electric powered motor to the transfer situation my subsequent thought is to eliminate the motor through the transfer situation to see if I am able to change it maunlly but that requires alot of dissmanlting there’s a great deal of items in just how is this vital.
The very first thing to check, though, are your fuses. If there won't be any lights within the sprint, then you may not have “logic†power on the TCCM (logic electrical power is +5VDC). The logic ability is supplied from the courtesy lights (do your inside dome lights come on any time you open the door?