OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

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.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number7 / 01

Possible causes

  • Transmission fluid low or burnt high
  • Valve body wear medium
  • Sensor element aged beyond calibration window low

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

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 200–3500 €
  • Estimated time: 1.5–12 h
  • Component: tcm
  • Component: transmission valve body
  • Component: transmission fluid
  • MIL / check engine light

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication