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 MANUALSSUBARU2016LEGACY 2.5IREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSANTI-THEFT SYSTEM - SECURITY AND LOCKSSECURITY SYSTEMINSPECTIONCHECK IGNITION SWITCH CIRCUIT
2016 Subaru Legacy 2.5i
Check Ignition Switch Circuit
2016 Subaru Legacy 2.5iSECTION Check Ignition Switch Circuit
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK DATA MONITOR. Display the data of «BATT voltage» and «IG power supply voltage» using the Subaru Select Monitor.
NOTE:
For detailed operation procedures, refer to "Application help".
|
Does the «IG power supply voltage» indicate 0 V when the ignition switch is OFF, and fall within a range of ±1 V from the «BATT voltage» when the ignition switch is ON? | The ignition switch input circuit is OK. | Go to step 2 . |
2 CHECK IGNITION SWITCH CIRCUIT.
|
Is the voltage 10 V or more? | Check body integrated unit. < Ref. to BASIC DIAGNOSTIC PROCEDURE . > | Check the harness for open or short circuit between body integrated unit and fuse. |
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.