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2002 GMC Sierra Service Engine soon light

Tiny
GDOAKS
  • MEMBER
  • 2002 GMC SIERRA
  • V8
  • AWD
  • AUTOMATIC
  • 10,300 MILES
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.
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Sunday, November 8th, 2009 AT 10:47 AM

4 Replies

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
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.
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Sunday, November 8th, 2009 AT 11:17 AM
Tiny
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Thanks that did it
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Sunday, November 8th, 2009 AT 6:15 PM
Tiny
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Can you tell me what fuses to check for P0135 code?
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Tuesday, November 10th, 2009 AT 3:56 PM
Tiny
BRIAN 1
  • MECHANIC
  • 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.
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Wednesday, November 11th, 2009 AT 5:31 PM

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