1989 CADILLAC DEVILLE
185,000 MILES
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do you have instructions on how to change out a Electronic Control Unit ?
Feb 3, 2013 at 4:36 PM
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ASEMASTER6371
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under the riight side of dash behind the glove box.

remove the lower valance and remove the 2 attaching bolts and slide it down

you have to change the prom to the new one.

Roy
Feb 3, 2013 at 5:20 PM