Free API
P0972moderate severityPowertrain

Shift Solenoid A Control Circuit Range/Performance

on 2011 Subaru WRX STI 2.5L H4 Turbo EJ257 Gen2 · AWD

What this code means

The transmission control module detected the shift solenoid A circuit performance outside expected values. This indicates the solenoid is not responding as commanded during gear selection.

Symptoms

  • Incorrect gear engagement
  • Erratic shifting
  • Check engine light on

Common causes

  • Sticking shift solenoid A
  • Wiring or connector faults
  • Contaminated transmission fluid
  • Failed transmission control module

Diagnostic steps

  1. Scan for trouble codes
  2. Check fluid level and quality
  3. Command solenoid with scan tool
  4. Replace shift solenoid A if faulty

Other Powertrain codes on this vehicle

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