P0700 What does it mean?
Can you drive, what causes it and how it shows.
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Common codes
P0700
Transmission Control System Malfunction
A request from the transmission control module (TCM) to illuminate the MIL. P0700 itself carries no specific information, it is a wrapper that tells the engine ECU "the TCM has a code". Read the TCM directly to find the actual transmission DTC.
Can you drive?
“You can drive, but see a mechanic soon”. A gearbox fault: shifting may get worse, or the gearbox may go into limp mode.
9,533trouble codes explained in plain words, free.
What causes it
The most likely cause comes first. This is a job for a mechanic.
- 1TCM has a sub-code that needs to be read separately
How it shows
Usually it shows like this.
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
In the app
Partly freeExplaining a trouble code is free: 9,533 codes, offline. With an adapter the app reads the code itself and tells you whether you can drive. A sample scan is free; unlimited scans come with VINARI+.
Common questions
What does P0700 mean?
P0700: Transmission Control System Malfunction. A request from the transmission control module (TCM) to illuminate the MIL. P0700 itself carries no specific information, it is a wrapper that tells the engine ECU "the TCM has a code". Read the TCM directly to find the actual transmission DTC.
Can I drive with P0700?
“You can drive, but see a mechanic soon”. A gearbox fault: shifting may get worse, or the gearbox may go into limp mode.
What causes P0700?
Most often: TCM has a sub-code that needs to be read separately.
How do I find out which code my car has?
Plug an ELM327 OBD adapter into the OBD-II port under the steering wheel and tap “Scan” in VINARI. The app reads the code, explains it and tells you whether you can drive.
Do I still need a mechanic?
Yes. The app tells you what is going on and how urgent it is; the final word belongs to the mechanic.
Other topics
Source: OBDex (CC0), VINARIUpdated 2 November 2026
