OBD Codes List

Diagnostic reference · P0901

P0901

Clutch A Actuator Control Circuit Range/Performance

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

What it means

P0901 means Clutch A Actuator Control Circuit Range/Performance.

Where it lives

For P0901, the description names the actuator as the part involved.

Check these first

  • A clutch A actuator that strokes slower than commanded
  • Debris restricting the actuator A bore
  • A worn actuator A linkage
  • A TCM driver fault on the actuator A circuit

What to do next

  1. Read clutch A actuator command on a scan tool
  2. Command the actuator A through its range and watch response
  3. Inspect the actuator A linkage for wear
  4. Measure the actuator A coil resistance
  5. Replace the actuator if the response is off
  6. Clear the code and retest

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Updated

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