2002 GMC Sierra Service Engine soon light

2002 GMC SIERRA
10,300 MILES • V8 • AWD • AUTOMATIC
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GDOAKS
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Truck is denali 6.0 litre, SES light... it appear the ODBII port is dead, tried 3 code scanners (last one i know is good as i ran it on my car), also one of the cigarette lighters doesnt work, (the one in the ash tray). Is it possible this is a fuse problem? Car appears to have a slight miss as well.

I havent unplugged the battery, as I would like to try and find what code is actually being thrown.
Nov 8, 2009 at 10:47 AM
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BRIAN 1
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check the cigar fuse,in the underhood fuse block,its probably blown.then see if it powers up,if not post back and will go to the next step.
Nov 8, 2009 at 11:17 AM
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GDOAKS
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thanks that did it
Nov 8, 2009 at 6:15 PM
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GDOAKS
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can you tell me what fuses to check for P0135 code?
Nov 10, 2009 at 3:56 PM
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BRIAN 1
  • CAR REPAIR CONTRIBUTOR
  • 1,030 POSTS
02 fuse b and 02 fuse a in the underhood fuseblock.anytime you are not sure just use a test light and check them all.
Nov 11, 2009 at 5:31 PM
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