OBD Codes List

Diagnostic reference · P0902

P0902

Clutch A Actuator Control Circuit Low

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

What it means

P0902 means Clutch A Actuator Control Circuit Low.

Where it lives

For P0902, the actuator sits on the circuit this code reports. The description of P0902 reports a fault at the actuator.

Check these first

  • A short to ground in the clutch A actuator circuit
  • A chafed actuator A wire against the case
  • A low battery dragging the actuator A circuit
  • A failed clutch A actuator coil

What to do next

  1. Read clutch A actuator voltage on a scan tool
  2. Test the actuator A circuit for a short to ground
  3. Check the battery voltage and charging
  4. Measure the actuator A coil resistance
  5. Replace the actuator if the coil is shorted
  6. Clear the code and retest

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Updated

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