Question about 1993 Buick Riviera

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ABS Brake@Traction Light Stay On All The Time. I Have Replace The Hub Unit (New)Also Wire From Unit To First Connection. (still on) Defective Unit? Bad connection?Or Ground? How Do You Check The Unit. Put Nuts On Hub To Hold The Router On And Run. What Voltage From Unit? This IS A 1996 Buick Rivera. Any Help? Thank You. Fullair@Voyager. Net

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  • harter69 Aug 05, 2008

    Yeah . I have the same problem . I have a 96 supercharged riviera but i also have the (security) light problem and the DOME LIGHTS WILL NOT COME ON AT ALL .??? The security light comes on 9 out of 10 times i try to start it .I turn the key the light comes on and it will not start .And the security light comes on while im going down the road ? This all started about 3 months after the (traction off )light and (abs )light started staying on all the time . And now the climate controll blows cold on the passenger side and hot on the driver side all the time ?? Anybody need a real nice parts car ??? I NEED ANSWERS THAT THE BOOK DOESNT HAVE .PLEASE LET ME KNOW AS WELL .



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I have a 1993 Buick LeSabre, and I have had a lot of wiring problems as well. Get this, I have replace the ECM computer, the prom chip, the climate control unit itself, and much more. However, non of these solved the problem you are having with hot and cold air settings. In my case the air would come on and surge and then die out completely. As it turned out, the switches on the dash were not to blame, but some people complain about those units going out. In my case I had to trace the wiring harness from the back of the control unit to the firewall under the hood. And there I found the answer. One of the connectors inside a clip had burnt up from overheating. I went to a junk yard and got a replacement clip and cut the old one out and carefully cut one wire at a time to make sure all the colors matched up on the splices....sure enough, I got the air to blow again without the hesitation.

In a similar but worse problem, I had a wiring clip unit go at the transmission plug in.....that caused it not to shift properly.
Splicing in a new complet wiring clip there help the cure the electronic shifting problem I was having.

So, my suggestion is to check all your wiring clips on the firewall side of the wiring harness that goes to the heater blower motor 1st, before you buy a whole new climate control unit. If the look fine, try a little electronic connection spray cleaner and clip them back together. Just make sure you understand how the clips unclip or you can break them. Most have a tab you lift up and then you can pull them apart. While others are more difficult in that they have a green pull tab which has to be pulled up to release the clip so you can pull it apart....good luck and I hope it helps

Posted on Aug 31, 2008


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