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May 25, 2022 Service bulletin

This document provides instructions for the reflashing of OEM engine control modules to address an...

Custom Fire technical service bulletin FSB.0017 for 2020-2021 Custom Fire Freightliner M2.

Bulletin number
FSB.0017
Component
Engine and engine cooling: engine: engine control module (ecu/ECM)
Summary
This document provides instructions for the reflashing of OEM engine control modules to address an inoperative fuel gauge and/or illuminated check engine light. These issues do not affect vehicle performance.

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