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.
Check Power Supply And Ground Circuit
2016 Subaru Legacy 2.5iSECTION Check Power Supply And Ground Circuit
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK POWER SUPPLY.
|
Is the voltage 9 V or more? | Go to step 2 . | Check the harness for open or short circuit between body integrated unit and fuse. |
| 2 CHECK GROUND CIRCUIT. Measure the resistance between the body integrated unit connector and chassis ground. Connector & terminal (i84) No. 4 - Chassis ground: (B280) No. 2 - Chassis ground: |
Is the resistance less than 10 Ω? | The power supply and ground circuit are OK. | Repair or replace the harness. |
RENDER: 1.0x
NO RELATED
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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.