OBD Codes List

Diagnostic reference · P0701

P0701

Transmission Control System Range/Performance

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P0701 means Transmission Control System Range/Performance.

Check these first

  • Dirty or low transmission fluid
  • A failing transmission solenoid
  • A faulty transmission speed sensor
  • A failing TCM
  • Worn clutch packs or bands

What to do next

  1. Check the transmission fluid level and condition
  2. Read transmission codes and live data
  3. Test the shift solenoids
  4. Inspect the speed sensors
  5. Service the transmission or replace the TCM
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.