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October 26, 2021 Service bulletin

Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium...

Mack technical service bulletin KC-136 for 2016-2022 Mack Anthem (An), 2016-2022 Mack Granite (GR) and 2010-2011 Mack CXU612 and others.

Bulletin number
KC-136
Component
Engine and engine cooling
Summary
Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium Tech Tool (PTT) - US10+OBD13 And Newer Emissions

Owners of these vehicles have filed 3 complaints in the engine category.

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