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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Rear Seat Entertainment System - Diagnostics - Introduction >> Rear Seat Entertainment System >> Problem Symptoms Table [12/2019 - 10/2022] >> Problem Symptoms Table [12/2019 - 10/2022]

Problem Symptoms Table [12/2019 - 10/2022]

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GENERAL FUNCTION

Symptom Suspected Area Link
Only the rear seat Blu-ray disc player rheostat does not operate/illuminate Proceed to "Illumination Circuit" Refer to Illumination Circuit [12/2019 - 10/2022]
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]
Rear seat Miracast does not connect Proceed to "Does not Connect to Rear-Miracast" Refer to Does not Connect to Rear-Miracast [12/2019 - 10/2022]
Rear seat DLNA does not connect Proceed to "Does not Connect to Rear-DLNA" Refer to Does not Connect to Rear-DLNA [12/2019 - 10/2022]
DISPLAY FUNCTION

Symptom Suspected Area Link
Black screen (when a disc or SD card is inserted, or when the system is in VTR mode) Proceed to "Television Display Power Source Circuit" Refer to Television Display Power Source Circuit [12/2019 - 10/2022]
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]
Only the disc screen is not displayed or is not stable Proceed to "Disc Player Outline" in System Description Refer to SYSTEM DESCRIPTION [12/2019 - 10/2022] 
Adjust the settings for contrast, tint, color and brightness -
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]
Only the SD card screen is not displayed or is not stable Check SD card (usable SD card, recorded files and format) -
Adjust the settings for contrast, tint, color and brightness -
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]
Screen is not displayed/screen is distorted only when playing the device connected to the HDMI terminal Connect other devices to the HDMI terminal and check that video feed is output -
Proceed to "Image or Sound from a Device Connected to the External Input Terminal is not Output" Refer to Image or Sound from a Device Connected to the External Input Terminal is not Output [12/2019 - 10/2022]
Television display does not turn on Proceed to "Television Display Power Source Circuit" Refer to Television Display Power Source Circuit [12/2019 - 10/2022]
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]
SOUND FUNCTION

Symptom Suspected Area Link
Quality of sound from wireless headphones is poor or no sound can be heard (when a disc or SD card is inserted) Proceed to "Sound from Wireless Headphones is Difficult to Hear, cannot be Heard, or Quality is Poor" Refer to Sound from Wireless Headphones is Difficult to Hear, cannot be Heard, or Quality is Poor [12/2019 - 10/2022]
Proceed to "Television Display Power Source Circuit" Refer to Television Display Power Source Circuit [12/2019 - 10/2022]
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]
Quality of sound from speakers is poor or no sound can be heard (when a disc or SD card is inserted) Check if the speaker output function is on -
Proceed to "Sound Signal Circuit between Radio Receiver and Television Display Assembly" Refer to Sound Signal Circuit between Radio Receiver and Television Display Assembly [12/2019 - 10/2022]
Proceed to "Mute Signal Circuit between Radio Receiver and Television Display Assembly"*1 Refer to Mute Signal Circuit between Radio Receiver and Television Display Assembly [12/2019 - 10/2022]
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]
Radio and display receiver assembly*1 Refer to REMOVAL [12/2019 - 10/2022]
Radio receiver assembly*2 Refer to REMOVAL [12/2019 - 10/2022]
Sound quality is poor/no sound/sound skips only when playing the device connected to the HDMI terminal Connect other devices to the HDMI terminal and check that video feed is output -
Proceed to "Image or Sound from a Device Connected to the External Input Terminal is not Output" Refer to Image or Sound from a Device Connected to the External Input Terminal is not Output [12/2019 - 10/2022]
  1. *1: for 8 Inch Display
  2. *2: for 12.3 Inch Display
REMOTE CONTROL FUNCTION

Symptom Suspected Area Link
Remote control system does not operate Proceed to "A Remote Control System does not Operate" Refer to A Remote Control System does not Operate [12/2019 - 10/2022]
Proceed to "Television Display Power Source Circuit" Refer to Television Display Power Source Circuit [12/2019 - 10/2022]
Television display assembly Refer to REMOVAL [12/2019 - 10/2022]