Sequoia 4WD V8-4.6L (1UR-FE) (2010)
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(3) If the voltage is not as specified, replace the 4WD control ECU See: Relays and Modules - Transmission and Drivetrain/Relays and
Modules - Transfer Case/Control Module/Service and Repair/Removal. If the voltage is normal, replace the 4WD control switch.