The current chassis harness connector contains a wire that is no longer necessary with the latest...
Peterbilt technical service bulletin 34-074 for 1990-2021 Peterbilt 520.
- Bulletin number
- 34-074
- Component
- Electrical system
- Summary
- The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture. The presence of the wire could result in a false fault code.
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