P0700: transmission control system
The transmission control module has stored a fault of its own and asked the engine computer to switch on the engine warning light.
SeverityModerateUsually not urgent today, but it can get worse if left.
Can you keep driving?Drive gently, check it soonWhat does P0700 mean?
P0700 is a messenger. It says the transmission module has found something, but not what. The real fault code is stored in the transmission module, which a basic code reader often cannot see. Until that code is read, P0700 says little beyond the fact that the transmission needs attention.
What causes P0700?
- Low or degraded transmission fluid
- A shift or pressure control solenoid fault
- A speed sensor or range sensor fault
- Wiring or connector problems at the transmission
- Internal wear
What to check first for P0700
- Have the transmission module read with a scan tool that can reach it
- Check the fluid level and condition, on transmissions that allow it
- Note how the car drives: harsh shifts, slipping or being stuck in one gear
Can you drive with P0700?
If the car shifts normally, drive gently to a workshop. If it is stuck in one gear, slips or shifts harshly, keep the trip short and slow: driving on a slipping transmission can turn a solenoid repair into a rebuild.
Since May 2018 an engine warning light that stays on is a major defect at the MOT, so the car fails until the fault is fixed.
Codes on this page
- P0700Transmission Control System (MIL Request)
Related codes
Checked on · Rafael Soares
These are the generic meanings every manufacturer shares. Each brand adds its own detail, so your car's handbook, its service information and a qualified mechanic have the last word. OdoKeep has no connection with any manufacturer, and the app does not read codes from the car.
