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 DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYKEYLESS ENTRY TRANSMITTERKEYLESS ENTRY TRANSMITTER BATTERYTESTING AND INSPECTION
2012 Subaru Impreza WRX STI F4-2.5L DOHC Turbo
Keyless Entry Transmitter Battery: Testing and Inspection
2012 Subaru Impreza WRX STI F4-2.5L DOHC TurboSECTION Testing and Inspection
Transmitter
INSPECTION
TRANSMITTER BATTERY
1. Check the voltage between the transmitter battery (+) terminal and (-) terminal.
NOTE: Battery discharge occurs during the inspection. Complete the measurement within 5 seconds.
2. Replace the battery if the inspection result is not within the standard value. (Use CR2025 or equivalent.)
INSPECTION
TRANSMITTER BATTERY
1. Check the voltage between the transmitter battery (+) terminal and (-) terminal.
NOTE: Battery discharge occurs during the inspection. Complete the measurement within 5 seconds.
2. Replace the battery if the inspection result is not within the standard value. (Use CR2025 or equivalent.)
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.