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Fuses

Tiny
JHAYNES113
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 135,000 MILES
I have a 2002 trailblazer ext and the check engine light is on. I took it to have a diagnostic run and the guy said he could not get a reading and to check the fuse. I have looked at the manual and both fuse boxes but don't know which fuse to look for. Any help?
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Thursday, August 18th, 2011 AT 7:48 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
The fastest way is to use a test light. The fuses have two small holes on top to take readings. Turn the ignition switch to "run", then probe both terminals of all the fuses. The test light will show voltage, (light up), on both terminals of most fuses. A few won't be powered up so the light will be off on both terminals. You're looking for one where the test light lights up on one terminal but not the other one.
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Thursday, August 18th, 2011 AT 8:23 PM

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