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Re: Always battling Hino P204F stored in ECU without DCU codes
Posted to HD/Fleet Forum on 9/6/2018 2 Replies

Hi Dan,

Dealing with the same P204F code. Replaced DEF injector. Just found out how to reset this code.

Highlight J08C engine and open options page, select "Data monitor and Active Test" tab, select "Active Test" tab, scroll down to "Urea SCR related memor... Login to read more.

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