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OBDII Automotive vs Heavy Duty
Posted to Technical Theory Forum on 2/28/2021 8 Replies

What, if any is the difference between between automotive and Heavy Duty OBDII? Around 2016 or so Heavy Duty started moving to OBDII Heavy Duty. So far the biggest change is there are 4 fault "states" on OBD. Also is there a difference between Assembly Line Da... Login to read more.

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