The seat heaters and ventilators heat the seats and maintain
good airflow by blowing air from the seats.
Seat heaters Turns the seat heater on
The level indicator lights come on.
Press the " Seat ventilators ■ Seat heater Turns the seat heater on
The level indicator lights come on. Pressing the button changes modes in the following: Hi→Mid→Lo→Off ■ Seat ventilators Blows air from the seat
The level indicator lights come on. Pressing the button changes modes in the following: Hi→Mid→Lo→Off ■The seat heaters/seat ventilators can be used when The engine switch is in the "ON" position. ■Passenger seat ventilator timer (vehicles with seat ventilators)
■When not in use Turn the seat heaters or seat ventilators off by pressing the button. The indicator light turns off.
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Toyota Tundra Service Manual > Power Tilt And Power Telescopic Steering Column System: IG Power Source Circuit
DESCRIPTION When the ignition switch is turned to on, the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. The multiplex tilt and telescopic ECU also receives ignition switch signals via this circuit. WIRING DIAGRAM CAUTION / NOTICE / HINT HINT: Inspect ...