2002 Denali xl

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Mark McConnell

TYF Newbie
Joined
Sep 28, 2020
Posts
1
Reaction score
0
Hi
Been working on a 2002 Denali that had the wiring harness burned up when an air pump was plugged into cigar plug. Problem was that a 30 amp fuse had replaced what should have been a 15 amp fuse and result was the CTSY lp circuit wire fried as well any adjacent wires in the bundle. After repairing the burnt wires all seems to be working properly except that the headlights stay on the moment the battery is connected. Relay is good. The headlight switch can be disconnected and lights still remain on which would might indicate that the constant Hot wire is contacting headlight wire. The only place this might be occurring is in the fuse block-if that is possible. Could the BCM have been damaged when wires heated up? Any help would be appreciated.
 
Top