Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2015 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Check Motor Unit
- Turn the ignition switch to OFF.
- Disconnect the connector from power steering unit.
- Using a tester and test harness, check the internal resistance of the harness terminals.
Preparation tool:Β
Circuit testerΒ
| Between connector and terminal | Standard |
|---|---|
| (PS2) No. 1 - No. 2 (PS2) No. 1 - No. 3 (PS2) No. 2 - No. 3 |
Less than 10 Ξ© |
| (PS2) No. 1 - Steering gearbox body (PS2) No. 2 - Steering gearbox body (PS2) No. 3 - Steering gearbox body |
1 MΞ© or more |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.