Non-Safety Campaign
Peterbilt technical service bulletin 42-059 for 2018-2020 Peterbilt 579 and 2018-2020 Peterbilt 567.
- Bulletin number
- 42-059
- Component
- Electrical system: propulsion system: traction motor: controller
- Summary
- Non-Safety Campaign - Vehicles with a Cummins X15 engine and Horton fan drive may set Diagnostic Trouble Code (DTC) 6637 and/or 3838 due to fan speed that results in the fan remaining activated until the power is cycled. A new controller will resolve the issue.
Owners of these vehicles have filed 7 complaints in the electrical category.
Vehicles covered
- Peterbilt 579 2018-2020 201820192020
- Peterbilt 567 2018-2020 201820192020
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