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June 29, 2020 Service bulletin

Freightliner Service Bulletin for Rerouting Wiring Harness to Reduce Chafing

Freightliner technical service bulletin SB54-328 for 2017-2021 Freightliner Business Class M2, 2017-2021 Freightliner 114SD and 2017-2021 Freightliner 108SD.

Bulletin number
SB54-328
Component
Power train
Summary
Freightliner Service Bulletin for Rerouting Wiring Harness to Reduce Chafing. Allison transmission wiring harness chafing causes disruption to gear engagement and fault code generation. To reduce chafing, the wiring is routed using stand off brackets and tie straps to minimize contact with the transmission parts. This bulletin applies to vehicles equipped with on-board diagnostics (OBDs) manufactured after 2016.

Owners of these vehicles have filed 1 complaints in the transmission category.

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