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Re: OBDII Automotive vs Heavy Duty
Posted to Technical Theory Forum on 2/28/2021 4 Replies

The connectors are similar but the data lines are different. It could easily brick a scanner if pin 16 is 24V instead of 12V.

There are also different data protocols in HD than in automotive. Even if you can connect, it will typically display garbled informa... Login to read more.

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