DESCRIPTION When the mirror heater switch (rear window defogger switch) on the radio and display receiver assembly is pressed, the operation signal is sent to the air conditioning amplifier assembly via CAN communication. When the air conditioning amplifier assembly receives the signal, it turns on the DEF relay to operate the mirror heaters. WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air Conditioner / Active Test. (e) Perform the Active Test according to the display on the Techstream. Body Electrical > Air Conditioner > Active Test
(a) Check the window defogger system operation. Click here OK: The window defogger system operates normally.
(a) Remove the DEF relay from the No. 1 engine room relay block and No. 1 junction block assembly. (b) Disconnect the I12 outer rear view mirror assembly RH connector. (c) Disconnect the I28 outer rear view mirror assembly LH connector. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Remove the DEF relay from the No. 1 engine room relay block and No. 1 junction block assembly. (b) Disconnect the I12 outer rear view mirror assembly RH connector. (c) Disconnect the I28 outer rear view mirror assembly LH connector. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Remove the outer mirror RH. Click here (b) Inspect the outer mirror RH. Click here OK: Outer mirror RH is normal.
(a) Remove the DEF relay from the No. 1 engine room relay block and No. 1 junction block assembly. (b) Disconnect the I28 outer rear view mirror assembly LH connector. (c) Disconnect the I12 outer rear view mirror assembly RH connector. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Remove the outer mirror LH. Click here (b) Inspect the outer mirror LH. Click here OK: Outer mirror LH is normal.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Door Lock: Wireless Door Lock Buzzer
ComponentsCOMPONENTS ILLUSTRATION *1 FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY LH *2 FRONT WHEEL OPENING EXTENSION PAD LH *3 WIRELESS DOOR LOCK BUZZER - - InstallationINSTALLATION PROCEDURE 1. INSTALL WIRELESS DOOR LOCK BUZZER (a) Engage the clamp to install the wireless door lock buzzer. (b) Connect ...