OBD codes / P0700
P0700
SeriousTransmission Control System Malfunction
Address promptly — can worsen or affect drivability.
Likely causes
- internal trans fault
- low/old fluid
- solenoid/sensor
Common fixes
- scan TCM sub-code
- check trans fluid
Seeing P0700 on your car? Get a diagnosis specific to your exact year, make and model.
Diagnose P0700 for my vehicleGeneric OBD-II reference. Manufacturer-specific behavior varies — confirm with a scan tool and, for safety-related codes, a professional inspection.