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 MANUALSTOYOTA20254RUNNER SR5, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSSMART KEY SYSTEM (FOR ENTRY) - DIAGNOSTIC CODES & SYMPTOM TESTSSMART KEY SYSTEM (FOR ENTRY FUNCTION)ENTRY LOCK FUNCTION DOES NOT OPERATE USING CLOSE & LOCK FUNCTION [12/2024 - ]DESCRIPTION
2025 Toyota 4Runner SR5, 4WD
Entry Lock Function does not Operate Using Close & Lock Function [12/2024 - ]: Description
2025 Toyota 4Runner SR5, 4WDSECTION Description
If the back door does not lock when using the power back door close and lock function, there may be communication problem between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU).
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.