SYSTEM DIAGRAM 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Seat Heater System(for Hv Model): Seat Heater for Front Right Seat does not Operate
DESCRIPTION When the seat heater switch of the seat heater switch (radio and display receiver assembly) is operated, the air conditioning amplifier assembly receives a signal and operates the front seat heater. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: If the auxiliary battery voltage becomes l ...
