I'd Examine your Substantial orange wires as you're receiving +5VDC logic as being the lights are approaching over the dash. The +12VDC is employed for the encoder motor — Examine to ensure you have +12VDC at both of those the large orange wires (They may be appropriate beside each other… and There are 2 massive black wires beside them which are floor). Notes: All black wires are floor — all orange wires are energy (hot). There's a 10A fuse (#fifteen) for the 4WD technique, situated in the fuse panel. There exists a 20A fuse, Found under the hood, which is also for the 4WD system (I’ll have to lookup the fuse quantity). The 4WD system also pulls in the 10A courtesy lamp fuse (#ten).
It could be brings about the motor, or maybe the motor alone — it’s difficult to say with no with the ability to take a look at factors. At best, it’s a corroded wire with the motor — Enable’s hope for that.
The provider 4wd indicator mild is “usually†brought on by an issue Together with the TC, from what I have Keep reading the subject (my manual states this in addition).
Many thanks with the instructions on uploading pictures. Are you able to please insert this to my authentic put up. I’d genuinely like some assistance on this.
I'm not accustomed to the variances in product decades — I very own a 2003 blazer, so what can be relevant to my car or truck is probably not to your ’95. Anyway, within the more recent blazers, You will find there's vacuum swap, possibly Situated around the firewall (down below the distributor), or on the highest with the transfer case — this change controls the front, passenger axle (by way of the actuator/diaphram that you've got already replaced).
As I claimed to a poster over (two up from this 1), it Appears to me like it could be a button assembly, wire in between the button assembly and TCCM or even a TCCM challenge.
So, you’re expressing that the lights Will not flash when hoping to have interaction 4Hi? That’s slightly different, with a few additional compact items to examine given that the lights ought to flash In case the TCCM is getting the sign.
puzzled states: January 4, 2009 at two:fifty two am I've a 4WD 2000 BLazer that received’t disengage from 4HI. After i push 2HI I'm able to listen to the TCCM clicking plus the lights flash on 2HI but goes back into 4HI. I also tried using 4LO and that does precisely the same factor. Nevertheless, it does go into Automobile 4WD without problem. I’ve had the switch on the sprint changed (the letters within the previous 1 wouldn’t light-weight up).
The problem, as I uncovered, was corroded wires while in the 4×4 module. The module is situated guiding the kick panel to the passengers side (see photo underneath). How did I know this? Every time I might interact my four wheel drive, I might listen to a “click – click on†coming from that location… in no way imagined anything of it ’til now!
Any Thoughts? Not a soul else seems to have experienced a problem like this from what I have study. I enjoy any opinions.. Does it audio just like a vacuum challenge somehweres?
The vacuum switch shouldn’t make much sound, not adequate for being confused with a little something working. What I suspect is you will be hearing the encoder motor about the transfer situation endeavoring to shift it into 4wd.
Your remark about getting into slippery disorders along with the 2Hi gentle goes out… the only thing I can imagine will be the TCCM (Transfer Situation Command Module) may have corroded wires, which was the original subject of this thread. Does this materialize automatically whenever you enter into slippery situations?
Perfectly, that’s about You can try this out all I can consider right this moment — if I imagine the rest, I’ll update this publish.
Even so, soon after participating in around some much more, I found that there was a nasty vacuum switch on top of the transmission at the rear of the transfer circumstance. (I have already been endeavoring to publish photos.. however it isn’t letting me.) — see beneath!