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GMC
C2500
General
1989 GMC C2500
190,000 MILES
HAMMMERHEAD
MEMBER
1 POST
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checking for trouble codes with jumper wire
Nov 7, 2012 at 8:25 PM
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RASMATAZ
CERTIFIED EXPERT
75,992 POSTS
In the DLC jumper A to B terminal-sample code: flash pause flash flash is code no. 12
Nov 7, 2012 at 9:33 PM