KlaroFault codeP0701
MODERATETransmission Control System Range/Performance
What this code means
Transmission Control System Range/Performance.
P0701 is a generic code: it means the same thing on every make. P0701 belongs to family P07xx — Transmission. Its page explains how to read a code and groups all its codes by part.
Type of fault
The signal stays within its electrical limits, but its value is not plausible: it does not match what the control unit expects given the other sensors. The sensor may be drifting with age, but it may also be faithfully measuring a real mechanical problem — a leak, a blockage, an air leak. Replacing the sensor without checking does not always clear the fault.
Gearbox control system
These codes mean the gearbox control unit has recorded a fault and asked the engine control unit to light the warning. They do not say which: the precise code is stored in the gearbox unit.
What you notice
Depends on the real fault: harsh shifts, a gearbox in limp mode, or just the warning light.
How to check it
Read the codes of the gearbox control unit itself with a tool that can access it: that is where the useful code is. Check the fluid level and condition meanwhile.
What to do
Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.
Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back. Clearing a fault code yourself →
How to read this code
- PPowertrain
- 0standardised code
- 7Transmission
- 01P0701
