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Q: Codes not reading on car.

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My car will no longer start and the codes won't read.

A: If the onboard computer can’t communicate w...

If the onboard computer can’t communicate with your scan-tool it could be a few different problems, it could be that the on-board computer isn’t getting the proper power or grounds, this would also explain the no-start. Have a certified mechanic take a look at it, it might only need a fuse or worse case a whole new power train control module (on-board computer).

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