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Get a blank screen when connecting code reader

Tiny
SAMGREW
  • MEMBER
  • 2003 CHEVROLET MONTE CARLO
  • 3.1L
  • V6
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
When I connect code reader I get a blank screen. I know reader works in other vehicle of same year and make and model.
Tuesday, April 3rd, 2018 AT 11:14 AM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So are you saying the code reader does not turn on when you hook up the code reader to the OBD2 port? If so you probably have a blown cigarette port fuse.
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Wednesday, April 4th, 2018 AT 7:20 PM
Tiny
SAMGREW
  • MEMBER
  • 41 POSTS
Now getting code P0300 Random misfire detected
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Wednesday, April 11th, 2018 AT 3:17 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So now the code reader works was the fuse blown?Have you ever replaced the spark plugs on that car?
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Wednesday, April 11th, 2018 AT 8:20 PM

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