Chris states: February 9, 2008 at four:00 pm 1st I should say this site rocks!! I do think you will be carrying out an awesome support. I've examine quite a few of these issues but have not found one which matches mine precisely. Some time back again experienced the vintage encoder motor difficulty where the truck would go into 4-lo or two-hi, but would flash and default to 2-hi when 4-Hello change depressed. Effectively Look at vacuum actuator under battery, Tccm, encoder motor plug,etcetera and all was great. Since my battery was disconnected the DTCs were reset and lo and behold my 4WD was Doing the job all over again. When 4wd was disengaged I'd personally get a whirring noise out from the front conclude, like 4wd wasn’t thoroughly disengaging the entrance diff. I might prevent the motor vehicle for a couple of minutes and it looked as if it would disappear. One other working day, on the best way to operate the sound wouldn’t disappear, so i tried putting it out and in of 4-hi a number of periods, until eventually it blew the fuse.
I have a 06 Civic Si. It sounds like something is hitting the brake protect. Rolling by parked cars and trucks with my passenger window down, I'm able to hear it softly reflecting back again to me.
Chris suggests: February 12, 2008 at ten:48 pm Many thanks for that reply Kyle. Due to the time as well as temperature outside the house in sunny Buffalo NY, I won’t be attempting something tonight. I am endeavoring to do anything at work on lunch where its warm. To distinct up a few things, I have checked the TCCM. I pulled the quilt off and checked the insides and all looks good. Rusty about the out but no signal of corrosion Within the TCCM or the plug. I've visually inspected the EM connector various instances. I've tugged within the wires, and it seems to become in great condition, no corrosion or apparant damaged wires. Because the final put up, I've exchanged the new EM with An additional new a person which a single is exhibiting same difficulty so I'm 99.ninety nine% certain it isn’t the motor. The aged EM worked After i tapped it With all the mallet, but just for a brief time, basically extended sufficient to receive me in 2-Hello. Both equally new EMs haven't worked. What is basically bothering me is The reality that the new EM is mounted and no blown fuse. Yesterday Once i to start with place it in, the fuse blew inside a moment of starting my truck.
The one-way links into the information have been eliminated as I did not realize they had been uploaded to a file server to publish below. I should have backed them as many as my server, but did not — I apologize for that.
Like I stated, I will make an effort to remember to get some much more photos — with any luck , this will let you obtain your module however! Regards;
As for that encoder motor getting fried as the TCCM “bought corroded and shorted it out†— once more, it doesn’t seem to be prone to me. There are (off-the-best of my head) 7 wires between the TCCM as well as encoder motor. two of them are power (+/-) and they are FUSE secured. 4 of these are signal strains and the final a person is signal ground. If the ground wire was corroded and shorted (to what?
If I needed to guess — both your encoder motor is shot, or undesirable wires on the TCCM. In the event you’re genuinely into it, I’ll write-up the schematics for the wiring with the system — this will allow you to trace and examination points along the procedure to pinpoint the issue. (I have to scan them, so it may not be today!)
NIck claims: December five, 2007 at ten:eleven am I just planned to say that the website gave me one of the most insight to my dilemma and I also would like to say thanks! My transfer scenario wasn’t finishing the change into 4WD Hi/Lo plus the buttons were blinking. Last summer months I carried out a tune up over the truck and observed that a vacuum hose was worn.
I almost certainly saved hundreds if I would've long gone to your seller. I would have finished the operate myself, but I would not have a lift Which small component was a pain to obtain, or even get it out for instance.
OK, so how the heck am I gonna correct this? I am able to only imaging what GM would would like to do (read as “harness replacementâ€â€¦ $$$$$$$$$$$$$$). And from asking all around about getting a alternative plug, my only possibility will be a scrap garden.
It’s tough to diagnose difficulties such as this without the need of having the ability to take a look at items — but it surely seems like both the TC encoder motor sign traces are lousy (a nasty floor could be a challenge too) or even the “forks†while in the transfer Look At THIS Site situation are worn, letting the gears to float, in which scenario the gears for 4Hi may not be moving into put.
If you discover that it's your challenge — a diode plus a capacitor need to resolve the problem. That which you do is get a diode (1N4148) and position it around the logic offer line with the TCCM (the polarity marker, a bad, to the TCCM), and position a capacitor (100uF 36v need to do it) concerning the diode plus the TCCM. What this does is prevents the battery from pulling electricity FROM the TCCM (by using the diode) along with the capacitor makes guaranteed you have adequate electrical power there to “briefly†run the TCCM even though the car or truck battery is getting drawn from.
As I'm not a mechanic, every thing that I understand about the Blazer 4WD technique has, essentially, been posted below — you merely have to read.
As I claimed, I have not tested any of the button wires, as I haven't had that particular trouble (however) — so, prior to deciding to try this, you'll want to validate what I am expressing is correct.