ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse - S-10 Forum
 
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post #1 of 8 Old 03-26-2011, 04:20 PM Thread Starter
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ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

1994 GMC sonoma. 4.3TBI auto trans.

problems:

Truck will not shift out of 1st gear, speedometer won't work, and the ABS light is on.

Everywhere I look online says to check the brake fuse. It is good. So I checked replaced the VSS. Nothing changed. So I checked the VSS buffer. With the ignition key on, I do not have power TO the buffer. I also do not have power TO the brake fuse.

If I unplug all the ABS, the ABS light goes out, but none of the other symptoms are fixed.

I have seen these same symptoms hundreds of times on GM vehicles online. NONE of them I see have a total lack of power to all the speed related stuff. I am at a loss. What do I do next? What is there left to check and how?



Recently, we replaced the ECU. We had damaged the old one, and got a new one from another tbi 4.3 sonoma 2wd. I don't think the ECU is the issue as we have put a minimum of 1k flawless miles on it since. But who knows.

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94 Sonoma. Dropped, loud, and chipped/
90 Volvo wagon. Don't laugh, I wouldn't
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post #2 of 8 Old 03-28-2011, 11:15 AM Thread Starter
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Re: ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

ttt Come on guys.

94 Sonoma. Dropped, loud, and chipped/
90 Volvo wagon. Don't laugh, I wouldn't
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post #3 of 8 Old 09-07-2011, 04:57 PM
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Re: ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

Had the same problem. Check your dust shields, behind the rotors. They have the ABS sensor in it for the front wheels. If they're rusted or damaged, I'd replace them. Bought them off Rockauto for $25 each. I also bleed my system, just incase there was air or gunk build up in the ABS motor.
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post #4 of 8 Old 09-07-2011, 05:34 PM
8/31/1897 - 4/29/2004
 
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Re: ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

It's no suppose to feel good

Quote:
Originally Posted by mostizzle View Post
I turned mine into an Oldsmobile, bitches love Oldsmobiles.
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post #5 of 8 Old 09-07-2011, 05:40 PM
8/31/1897 - 4/29/2004
 
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Re: ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

That ^was suppose to be an answer to a text.lol.stupid iPhone.Check your wheel speed speed sensorslol!that's funny.my windshield is cracked now my brakes squeak!lol

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I turned mine into an Oldsmobile, bitches love Oldsmobiles.
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post #6 of 8 Old 09-07-2011, 05:58 PM
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Re: ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

Is there anything else accessory wise that is giving you problems? Have you check the voltage?

The reason I ask is there was a problem that a friend of mine was having a few weeks ago. His issues were that when his a/c was turned on, he would get an ABS light and his a/c compressor would cut off. After tracing out the wires to the a/c blower motor, compressor, PCM, and ABS we were at a loss. Then we noticed that his fuse panel was only getting 9 volts, turns out his ignition switch was going bad and the load from the a/c would cut off his abs.

Checking the voltage is quick and might lead you into the direction of the problem. We jumped out the ignition switch and his problems went away, that is what confirmed that his switch was indeed bad. His truck is a 97 4.3L.
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post #7 of 8 Old 05-28-2012, 10:17 PM
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Re: ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

having same prob on my 99 jimmy expect for brake fuse issue. still looking for info on this

-Kevin
98 S10 6.0 LSX T56 ford9
06 GMC LBZ Duramax stock so far
-- project thread--
http://www.s10forum.com/forum/f213/a...me-lol-513014/
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post #8 of 8 Old 06-04-2012, 10:37 PM
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Re: ABS light, No speedo, Trans won't shift out of 1st, and no power to brake fuse

I know this is an old thread.... but I will help you out. I just had this problem a few months ago, was leaving from visiting my GF at college and had a 3 hr drive and had 3.5 hrs to get there and I got stuck in first gear with no Speedo lol It ended up being my Rear ABS sensor/speed sensor... I have a 4x4 so mine was located on the transfer case... but thats what I would check. That sensor will throw everything out of whack. The front sensors will just mess with the ABS light. Hope this helps

EDIT: I have a 98 GMC Sonoma 4x4 Ext. Cab
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