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.
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HOMESERVICE MANUALSSUBARU2012IMPREZA WRX STI F4-2.5L DOHC TURBOREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - BRAKES AND TRACTION CONTROLELECTRONIC BRAKE CONTROL MODULESERVICE AND REPAIRADJUSTMENT
2012 Subaru Impreza WRX STI F4-2.5L DOHC Turbo
Adjustment
2012 Subaru Impreza WRX STI F4-2.5L DOHC TurboSECTION Adjustment
ADJUSTMENT
When the following replacement, removal and installation are performed, be sure to perform the centering of the steering angle sensor and zero point setting of yaw rate & G sensor.
- VDCCM&H/U
- Steering angle sensor
- Yaw rate & G sensor
- Steering wheel parts (Including airbag)
- Suspension parts
- Wheel alignment adjustment
1) Park the vehicle straight on a level surface. (With engine operating in the "Neutral" range)
2) Check that steering wheel is positioned at the center. (When the center position is not correct, adjust the wheel alignment.)
3) Set the Subaru Select Monitor to the vehicle, and select the {Set mode Str.A.Sen.N&Lat.GSen. 0p} in the [[Function Check Sequence]] screen. (Follow the steps on the display.)
4) On [[Brake Control System]] display, select {Current Data Display & Save}, and check that the steering angle sensor shows "0 deg".
5) When the "0 deg" is not displayed, repeat the above steps and check that the "0 deg" is displayed.
6) Drive the vehicle for 10 minutes, and check that the ABS and VDC warning light is not illuminated.
7) Check that there is no unnecessary VDC operation or steering control loss. If there is a malfunction, repeat the steps above.
When the following replacement, removal and installation are performed, be sure to perform the centering of the steering angle sensor and zero point setting of yaw rate & G sensor.
- VDCCM&H/U
- Steering angle sensor
- Yaw rate & G sensor
- Steering wheel parts (Including airbag)
- Suspension parts
- Wheel alignment adjustment
1) Park the vehicle straight on a level surface. (With engine operating in the "Neutral" range)
2) Check that steering wheel is positioned at the center. (When the center position is not correct, adjust the wheel alignment.)
3) Set the Subaru Select Monitor to the vehicle, and select the {Set mode Str.A.Sen.N&Lat.GSen. 0p} in the [[Function Check Sequence]] screen. (Follow the steps on the display.)
4) On [[Brake Control System]] display, select {Current Data Display & Save}, and check that the steering angle sensor shows "0 deg".
5) When the "0 deg" is not displayed, repeat the above steps and check that the "0 deg" is displayed.
6) Drive the vehicle for 10 minutes, and check that the ABS and VDC warning light is not illuminated.
7) Check that there is no unnecessary VDC operation or steering control loss. If there is a malfunction, repeat the steps above.
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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.