LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control System >> General Diagnostic Table >> Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

General Diagnostic Table: Inspection

Symptoms Possible cause Corrective action
AT select lever Starter does not run. Adjust the select cable and inhibitor switch, or inspect the circuit.
Back-up light does not illuminate. Adjust the select cable and inhibitor switch, or inspect the circuit.
AT shift lock system does not operate normally. Adjust the select cable and inhibitor switch, or inspect the circuit.
Manual mode can not be set. Inspect the mode switch and select lever, or inspect the circuit.
MT gear shift lever (STI model) Cannot shift into reverse. Adjust the reverse check cable.
Can shift into reverse when the slider is not pulled up. Adjust or replace the reverse check cable.
Slider cannot be pulled up or sticks in the pulled-up position.
  • Check the reverse check system of the transmission.
  • Adjust or replace the reverse check cable.
MT gear shift lever
(Except for STI model)
Cannot shift into reverse. Adjust the MT gear select cable.
Shifted to 6th though it shifted to reverse. Adjust or replace the MT gear select cable.
Can shift into reverse when the slider is not pulled up. Adjust or replace the MT gear select cable.
Slider cannot be pulled up or sticks in the pulled-up position.
  • Check the shift link system of the transmission.
  • Adjust or replace the MT gear select cable.