Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Operation Check

OPERATION CHECK

CHECK WINDOW DEFOGGER SYSTEM

(a) Turn the engine switch on (IG).

(b) Check that the rear window defogger wire becomes warm by operating the rear window defogger switch of the radio and display receiver assembly.

(c) When the vehicle is stopped, confirm that the window defogger system operation stops after approximately 15 minutes.

NOTICE:

If the battery voltage becomes low, battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the window defogger system may not operate.

HINT:

• If both of the following conditions are met approximately 15 minutes after the window defogger system was activated, the window defogger system will continue to operate up to approximately 45 minutes. If the following conditions are not met, the window defogger system stops operating immediately.
  • The outside temperature is -3°C (27°F) or lower.
  • Power generated by the generator assembly is stable.
• The window defogger system is linked with the mirror heater function.