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P0700: Transmission Control System Malfunction
The transmission control module has detected a fault.
High Severity
Can I Keep Driving with Code P0700?
Limp it home if you have to, but get it diagnosed immediately. Transmission damage gets expensive fast.
What P0700 Means
P0700 is a generic notice from the transmission control module that something is wrong, but it does not tell you what. There will always be a more specific code stored alongside it.
Common Causes
Internal transmission fault Failed solenoid pack Wiring problems to transmission sensors Low or burnt transmission fluid — see repair cost
Diagnostic Tips
Always get the secondary transmission codes (P07xx series) read along with P0700. Check fluid level and condition first, it is the cheapest diagnostic. Avoid hard acceleration until repaired.
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Frequently Asked Questions
Can I just clear P0700?
It will come back, and ignoring transmission issues turns into rebuilds quickly.
Other Common Codes
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Prices are typical national averages and vary by region, vehicle, and shop. Always get a written quote.