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.
2016 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Section 7 (Lighting System)
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.
- General Description
- Relay and Fuse
- Headlight System
- Wiring Diagram
- Inspection
- Basic Inspection
- System Block Diagram
- Module I/O Signal
- Trouble Symptom
- Check Headlight System
- Auto Headlight System Check
- Check Of Welcome Lighting System (If It Does Not Illuminate)
- Check Of Welcome Lighting System (If It Does Not Go Off)
- Check Wiper Interlock Headlight System
- Check Steering Responsive Headlight System
- Check Lighting Switch
- Check Dimmer & Passing Switch
- Note
- High Beam Assist System
- Day Time Running Light System
- Clearance Light and Illumination Light System
- Front Fog Light System
- Turn Signal Light and Hazard Light System
- Back-up Light System
- Stop Light System
- Interior Light System
- Auto Headlight Beam Leveler System
- Combination Switch (Light)
- Light Control Sensor
- Headlight Assembly
- Clearance/Parking Light Bulb
- Front Turn Signal Light Bulb
- Front Side Marker Light Bulb
- Hazard Switch
- Front Fog Light Assembly
- Side Turn Signal Light Assembly
- Rear Combination Light Assembly
- License Plate Light
- License Plate Light Bulb
- High-mounted Stop Light
- Spot Map Light
- Room Light
- Trunk Room Light
- LED Illumination Light
- Vanity Mirror Light
- Ignition Switch Illumination
- Auto Headlight Beam Leveler Control Module
- Reflex Reflector
- Door Switch
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:
- • 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.
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