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.
2021 Subaru Legacy BaseFACTORY OEM SERVICE PROCEDURE
Steering Angle Sensor: Installation
CAUTION:
- When removing, installing or replacing the VDC control module and H/U, VDC control module and H/U bracket, steering wheel or steering angle sensor (steering roll connector), perform "VSC(VDC) Centering Mode" of the VDC. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM and H/U)>ADJUSTMENT>VDC SENSOR MIDPOINT SETTING MODE .
- Before handling the airbag system components, always refer to "CAUTION" of "General Description" in "AIRBAG SYSTEM". Ref. to AIRBAG SYSTEM>GENERAL DESCRIPTION>CAUTION .
- Install the sensor assembly VDC steering.
- Apply grease to the protrusion (a) of the new sensor assembly VDC steering.CAUTION: Do not rotate the steering angle sensor protrusion.
Preparation items:
Grease: KYODO YUSHI Multemp L or equivalent
- Align the center of steering roll connector. Ref. to AIRBAG SYSTEM>ROLL CONNECTOR>ADJUSTMENT .
- Align the position of the protrusion and install the sensor assembly VDC steering to the steering roll connector.
- Apply grease to the protrusion (a) of the new sensor assembly VDC steering.
- Install the column cover assembly. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>STEERING COLUMN>INSTALLATION .
- Install the steering wheel. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>STEERING WHEEL>INSTALLATION .
- Install the driver's airbag module. Ref. to AIRBAG SYSTEM>DRIVER'S AIRBAG MODULE>INSTALLATION .
- Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
- Perform the neutral position setting of the sensor assembly VDC steering. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM and H/U)>ADJUSTMENT>VDC SENSOR MIDPOINT SETTING MODE .
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.