P0700 — Transmission Control System Malfunction
Reviewed1 source
1 source
- Official data (NHTSA)official_feed
What P0700 means
Caution — monitor closely
Not a standalone fault — a flag: the transmission control module is telling the engine ECU it has its own codes stored; the transmission-specific codes must be read via a separate request.
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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- The transmission control module has its own codes
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