Okay. I assume the sensor will fix the speedometer. Once we get that repaired we can move onto the possible DLC issue or module issue. However, if the speedometer issue is fixed then we will need to start a new post for this issue because we need to keep one per post. People can't find solutions for their issue if they have the same one if it is under a different post.
However, here is a diagram of the DLC. We need to check and make sure you have 12 volts with the key on on pin 16 of the DLC. Then ground on 4 and 5. Then you should have continuity from the DLC to ECM on Pin 7 and 15. If any of these are not correct then you will not be able to communicate with the vehicle. Also, just a dumb question but has this scan tool ever communicated with this vehicle before? I just want to make sure it is not a scan tool issue. If it has, just check it on another car to make sure the tool itself hasn't failed. Seeing if it communicates with another vehicle is the easiest way to do that.
Tuesday, October 15th, 2019 AT 6:19 PM