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
Active Test: List
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
| Active test item | Contents | Unit used in operation | Execution condition |
|---|---|---|---|
| F & R Clutch Solenoid | Forcibly operate the F & R clutch solenoid that controls engagement/disengagement states of the forward/reverse clutches. Check if it operates normally by listening to the operating sound. | 100 mA | When all of the following conditions are met:
|
| Secondary Solenoid | Forcibly operate the secondary solenoid that controls the pressure applied to the secondary pulley cylinder. Check if the solenoid operates normally by listening to the clicking sound. | 100 mA | |
| Primary Down Solenoid | Forcibly operate the primary DOWN solenoid that controls the pressure applied to the primary pulley cylinder to the decrease side. Check if it operates normally by listening to the clicking sound. | 10% | |
| Primary Up Solenoid | Forcibly operate the primary UP solenoid that controls the pressure applied to the primary pulley cylinder to the increase side. Check if it operates normally by listening to the clicking sound. | 10% | |
| Lock-Up Duty Solenoid | Forcibly operate the lockup duty solenoid that controls engagement/disengagement states of the lockup clutch. Check if it operates normally by listening to the clicking sound. | 10% | |
| Line Solenoid | Forcibly operate the line pressure solenoid that controls the line pressure. Check if the solenoid operates normally by listening to the clicking sound. | 100 mA | |
| AWD Linear Solenoid | Forcibly operate the AWD solenoid that controls engagement/disengagement states of the transfer clutch. Check if it operates normally by listening to the operating sound. | 100 mA |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.