I would get a meter and check the voltage output on the pin for the speed signal. I'm not sure which it is.. and you'll need to do it while the vehicle is moving.....

This post should be in Tech Help or Diesel Discussion. Your posts are being held up because this is open discussion and they dont let you post with frequency unless you've posted in other areas first for a while. so i would either request this post be moved or start a new one.

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