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January 20, 2021 Service bulletin

Freightliner Service Bulletin for Coolant Level Sensor Wiring Repair

Freightliner technical service bulletin SB54-337 for 2017-2022 Freightliner Cascadia.

Bulletin number
SB54-337
Component
Electrical system
Summary
Freightliner Service Bulletin for Coolant Level Sensor Wiring Repair. On New Cascadia vehicles, depending on the tension applied to the harness located at the coolant level sensor and its mounting locations, wiring damage can occur, resulting in one or more of the below listed fault codes.

Owners of these vehicles have filed 11 complaints in the electrical category.

Vehicles covered

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