You do have a cordless phone — you choose it up and press the discuss button to acquire a dial tone, however , you don’t receive a dial tone — alternatively, you obtain a number of beeps following a couple seconds. What is going on is, you press the button over the telephone (buttons on the dash) — a signal is sent in the phone to The bottom unit (Transfer Case Manage Module) — The bottom unit will not be plugged in, so it doesn't reply to the signal within the phone — the cellular phone doesn’t know how to proceed, so it beeps at you to state There's an error. This is often, basically, how your 4WD program is effective.
Once i get additional time, I’ll show you about all the other things which have gone Mistaken with my Blazer since the working day I drove it off the ton, with twelve KM on it. It truly is, as so all kinds of other blogs I have browse from Blazer house owners on the internet, the Tale of a lemon.
In addition to that, there are actually a couple of sensor switches — 1 to detect Should the front axle is engaged for sure — which could also be a cause of failure (if the sensor says some thing is not proper, it will kick it back away from 4WD and into 2Hi). Wherever they can be found, I’m not one hundred% — Primarily with a ’ninety five.
If I force the 4-Hello or four-lo when in park or generate, I get practically nothing. No clicking, and the light will never gentle up. But If I get it done from Neutral like I just stated, it really works similar to a charm along with the lights perform in addition.
Thanks for obtaining my account Functioning. I still can’t work out the best way to upload a picture. In any case, terrific website, quite informative. Like most here, I’m getting a challenge with my 4wd on my 2000 Blazer. I believe it's got anything to perform Along with the vaccum, but I’m unsure (been much too cold out doors to actually enter into looking). Sure wish I could discover a vacuum schematic.
Should really I have an alignment accomplished on my motor vehicle if tread is gone on my front two tires, and the rear tires have coping?
What I’d do is go out and begin tests the TCCM and connections (if you have that capability). I experience a substantial amount of it On this article.
Nevertheless it displays in “4 wheel very low” I truly feel my following shift is taking away the entrance drive shaft , and pulling the servo change motor to the transmission , it seems as When the are about 9 wires gonna that servo motor, I’m I on the right tranck ?
). Sure, most of the higher than “testing” of the TCCM is probably not feasible in your case. I understand it’s an issue which i would not wish to tackle as I don't have obtain to another TCCM, so it tends to make like tough. One among my hobbies is electronics layout and programming — so, if it have been me, I might go ahead and take schematics (all schematics are in the 1st write-up of this thread) and start “probing” the TCCM to view what exactly is undertaking what. I'd file that details, then do the exact same course of action the subsequent time I had the issue to check out what has transformed. It might not aid you really repair the situation, nonetheless it will assist you to discover it — when it’s discovered it can be mounted.
Selection seven has long been the culpret in two in the blazers I've worked on its hardned metal so usually do not attempt to make one particular out of any washer it will eventually fall short. GM sells this washer in whatever they get in touch with a washer package it incorporates seven, twenty, and 24. If any individual has this problem its an easy fix and you also dont even have to remove the diff, just the axle tube, but youll have to remove the halfshaft 1st this take care of took me just over an hour or so to accomplish.
baffled says: January four, 2009 at 2:52 am I've a 4WD 2000 BLazer that won’t disengage from 4HI. Once i press 2HI I can hear the TCCM clicking and also the lights flash on 2HI but goes back again into 4HI. I also experimented with 4LO and that does precisely the same thing. Nonetheless, it does go into Car 4WD without any issue. I’ve experienced the activate the dash replaced (the letters over the outdated one wouldn’t light-weight up).
How to inform If your TCCM is bad? Properly, that’s just a little also included for me to depth Go To THIS Web-Site right here (basically, it will involve systematic tests of the various wires). If you're able to read a schematic, Then you really’ll know what to do with it — all schematics that you just’ll need to have are in put up one of the thread.
In essence, check Each and every of the strains — When they are all warm while in 2Hi, then if you attempt to change to 2Lo, one of several strains should go small (0VDC) — precisely the same should take place with 4Hi. So, if you are attempting to engage 4Hi and you also’re absolutely sure There may be energy at pin 5 (4Hi button sign), and none of the lines transform when looking to modify to 4Hi, I'd suspect the TCCM. In the event the encoder signal line DOES transform, then the transfer circumstance encoder motor module is negative.
As I said to the poster above (two up from this one particular), it Appears to me like it might be a button assembly, wire involving the button assembly and TCCM or even a TCCM problem.