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The abs light came on the wippers power window stop working and the heater

(1999 GMC Suburban 1500)
in Sandpoint, ID on November 18, 2013
The heater only works on high now if i try turning on the wippers or hit the power window switch the heater shuts off and the stereos power goes out
Displaying 3 answers & 2 comments
Popular Answer
of Greg's Orange Auto on November 19, 2013
based on your answer get a diag done and an estfrom a good shop
of G. T. Service Center on November 18, 2013
Sounds like a bad ground. Do you have meters to test with?
on November 18, 2013
I do but i don't know where to start or where to look
of G. T. Service Center on November 18, 2013
First start with the body ground off the battery to fender, or engine to firewall. The components mentioned except the ABS are at the left under dash/kick panel area. The ABS is grounded to the frame right under the driver seat/floor board area. Something in the area causing change when door controls are used, Ground not good to let all operate at the same time. Window stops radio & heater.
of Gillespie's Auto Service on November 18, 2013
Agree with prof, this could be a bad ground. Check the braded ground cable from the frame to the engine block near the right hand engine mount too.
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