No Communication from OBDII OBD II OBD 2 OBD2 Port (Cig fuse is good)

Discussion in 'Chevy C/K Truck Forum' started by mmor101, Jun 17, 2013.

  1. mmor101

    mmor101 New Member

    Got a Service Engine Soon light and would like to pull the code. I'm getting +12V power from the OBD connector but my scanner can not communicate. All the wiring in the back of the connector looks secure. Any ideas?
     
  2. 4x4squared

    4x4squared Rockstar 3 Years 100 Posts

    What year is your truck?
     
  3. mmor101

    mmor101 New Member

    96' with the 4.3L. I wish I could give you the exact production date but the sticker on the door jamb is worn. I know for a fact is it OBDII because of the sticker under the hood.
     
  4. Enkeiavalanche

    Enkeiavalanche Rockstar 4 Years ROTM Winner 5000 Posts

    How old is your battery? If it is weak your tester might not read the Truck..
     
  5. mmor101

    mmor101 New Member

    I just bought the truck but the battery looked somewhat new. I have over 12v at the OBD port, tested with multimeter.
     
  6. Enkeiavalanche

    Enkeiavalanche Rockstar 4 Years ROTM Winner 5000 Posts

    did you Load test it?
     
  7. 4x4squared

    4x4squared Rockstar 3 Years 100 Posts

    have we tried a different scanner? your scanner might just hate your truck :p
     

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