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April 29, 2026 Service bulletin

B235C-64-TRAILER connection - signal plausibility failure

Ram technical service bulletin S2623000029 for 2025-2026 Ram 1500, 2025-2026 Ram 2500 and 2025-2026 Ram 3500 and others.

Bulletin number
S2623000029
Component
Electrical system
Summary
B235c-64-trailer connection - signal plausibility failure diagnostic trouble code (dtc) set.

Owners of these vehicles have filed 353 complaints in the electrical category.

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