DTC code
P0700
Transmission Control System Malfunction
Technical guide
partially verifiedSymptoms
- Transmission warning light
- check engine light
- harsh shifting
Probable causes
- Transmission control system fault indicator
- generic code that accompanies TCM fault
- check for TCM codes
Diagnostic steps
- Scan specifically for transmission codes (TCM codes) alongside P0700.
- P0700 is a flag code - find the root cause TCM code.
- Address the underlying TCM fault.
Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.
Models most reported with this code (NHTSA)
Count of distinct owner complaints mentioning the code. US data — same engines, same failures.
AI here is a librarian: this page shows only what mechanics confirmed, or says “unknown”. It never suggests a diagnosis — MECCANIC interprets the code, never your car.
0 confirmed cases on P0700
Nothing confirmed yet for this code. No guess is offered on purpose.
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