A DPF regeneration two-position switch parameter is causing inhibited DPF regeneration
Peterbilt technical service bulletin 43-069 for 2021 Peterbilt 579, 2021 Peterbilt 389 and 2021 Peterbilt 567 and others.
- Bulletin number
- 43-069
- Component
- Fuel system, diesel
- Summary
- A DPF regeneration two-position switch parameter is causing inhibited DPF regeneration. A parameter update, via Cummins Insite, restores proper DPF regeneration function.
Vehicles covered
- Peterbilt 579 2021 2021
- Peterbilt 389 2021 2021
- Peterbilt 567 2021 2021
- Peterbilt 536 2021 2021
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