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.
Transmission Control Switch: Inspection
- INSPECT TRANSMISSION CONTROL SWITCH
- Disconnect the transmission control switch connector of the shift lock control unit assembly.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
STANDARD RESISTANCE SPECIFICATIONTester Connection Shift Position Specified Condition 3 (IG) - 7 (S) M, "+" and "-" Below 1 Ω 3 (IG) - 7 (S) Except M, "+" and "-" 10 kΩ or higher 2 (SFTU) - 5 (E) Press continuously "+" (Up shift) Below 1 Ω 2 (SFTU) - 5 (E) M 10 kΩ or higher 1 (SFTD) - 5 (E) Press continuously "-" (Down shift) Below 1 Ω 1 (SFTD) - 5 (E) M 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the resistance value is not as specified, replace the transmission control switch
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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.
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