OBD-II code · Powertrain (generic)
P0701 Transmission Control System Range/Performance
The TCM has detected a transmission performance issue without identifying a specific component fault — typically slip outside expected range, shift timing outside spec, or a hydraulic issue not yet diagnosed by a more specific code.
Is it safe to drive with P0701?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyTransmission fluid low or burnt
- PossibleValve body wear
- Less likelySensor element aged beyond calibration window
Symptoms
- 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
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–12 h
- Emissions test
- Usually unaffected
- Parts involved
- Tcm, Transmission Valve Body, Transmission Fluid
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.