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2005 Chevrolet Malibu COMMUNICATION ERROR OBDII

Tiny
JOEWACH
  • MEMBER
  • 2005 CHEVROLET MALIBU
  • 103,000 MILES
I WENT TO GET THE VEHICLE INSPECTED. THEY COULDN'T GET THE OBDII TO COMMUNICATE SO THEY WOULDN'T PASS THE VEHICLE BECAUSE THEY COULDN'T DO THE EMISSIONS TEST. THERE ARE NO CHECK ENGINE OR OTHER LIGHTS ON AND THE VEHICLE DRIVES FINE. WHAT DO I CHECK?
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Sunday, June 16th, 2013 AT 1:05 PM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
The first thing I would check is if there is battery voltage to the orange wire at the obd2 connector?If there isn't it won't communicate.
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Sunday, June 16th, 2013 AT 3:17 PM
Tiny
JOEWACH
  • MEMBER
  • 4 POSTS
Orange wire has 1.1 volts. All fuses are good. Scanner when in general vehicle mode reads everything on the vehicle. When in specific vehicle mode, it will not connect.
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Wednesday, June 19th, 2013 AT 2:20 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
The orange wire should have battery voltage there's the problem are you sure you checked all the fuses inside the car and outside the car?
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Wednesday, June 19th, 2013 AT 8:02 PM

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