Have you ever gone to use a scanner on your car, truck, or Jeep only to find out it would not work? If you plug in to your OBDII data port and nothing happens, you need to find why. There are a few reason why your OBD II port does not work or seem to have no power. This video will help you fix your broken OBD II port
#4 and #5 - ground
#16 - 12V
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