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Re: DTC Codes, Engine Derate, Maxxforce 13
Posted to HD/Fleet Forum on 4/3/2018 2 Replies

This is an EPA 07.

You will have 3 modules. All those sensors report to the Aftertreatment Control Module (ACM).

Your calibration shows to be current, I would start with verifying power and ground to the ACM.

Is there a VREF? Pin B24 Login to read more.

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