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)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSSTOP AND START SYSTEM CANCEL SWITCH ASSEMBLY - SERVICE INFORMATIONSTOP AND START SYSTEM CANCEL SWITCH ASSEMBLYINSPECTION [12/2024 - ]PROCEDURE
2025 Toyota 4Runner SR5, 4WD
Inspection [12/2024 - ]: Procedure
2025 Toyota 4Runner SR5, 4WDSECTION Procedure
- INSPECT ECO RUN CANCEL SWITCH ASSEMBLY
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result 5 (ECU) - 2 (E) Eco run cancel switch assembly being pushed and held Below 1 Ω Ω 5 (ECU) - 2 (E) Eco run cancel switch assembly not pushed 10 kΩ or higher kΩ If the result is not as specified, replace the eco run cancel switch assembly.
*a Component without harness connected
(Eco Run Cancel Switch Assembly) - Apply battery voltage between the terminals of the switch, and check the illumination condition of the eco run cancel switch assembly.
OK
Measurement Condition Specified Condition Battery positive (+) → 6 (ILL+)
Battery negative (-) → 1 (ILL-)Illuminates If the result is not as specified, replace the eco run cancel switch assembly.
*a Component without harness connected
(Eco Run Cancel Switch Assembly)
- Measure the resistance according to the value(s) in the table below.
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.