Parking Assist Monitor System Problem Symptoms Table

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Park Assist Monitoring. Lexus Gs430, Gs300. Uzs190 Grs190

Parking Assist Monitor System -- Problem Symptoms Table


HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Symptom
Suspected area
See page
When shift lever is in R position, parking assist monitor image is not displayed (screen is not black)
Power source circuit (Television camera ECU)
Click here
Park/neutral position switch (3UZ-FE)
Click here
Park/neutral position switch (3GR-FE)
Click here
Park/neutral position switch (3GR-FSE)
Click here
CAN communication system
Click here
Replace television camera ECU
-
When shift lever is in R position, parking assist monitor image is not displayed (screen is black)
Display signal circuit (Television camera assembly - Television camera ECU)
Click here
Replace television camera
-
Replace television camera ECU
-
When shift lever is not in R position, parking assist monitor image is displayed
Park/neutral position switch (3UZ-FE)
Click here
Park/neutral position switch (3GR-FE)
Click here
Park/neutral position switch (3GR-FSE)
Click here
Replace television camera ECU
-
Projected course guidelines are not displayed
Steering sensor
Click here
Replace television camera ECU
-
Manual assist mode screen is normal but pressing switch to change to parallel parking assist mode does not change screen *1
CAN communication system
Click here
AVC-LAN circuit between multi-display and television camera ECU
Click here
Replace navigation ECU
-
Replace television camera ECU
-
Manual assist mode screen is normal but changing to parallel parking assist mode causes "Guidance unavailable" to be displayed *2
CAN communication system
Click here
AVC-LAN circuit between multi-display and television camera ECU
Click here
Replace navigation ECU
-
Replace television camera ECU
-
Problem with parking assist monitor image (color, unclear picture)
Display signal circuit (Television camera assembly - Television camera ECU)
Click here
Display signal circuit (Television camera ECU - Multi-display)
Click here
Replace television camera
-
Replace television camera ECU
-
Replace multi-display
-
When parking vehicle with "Parallel Parking Assist" mode, screen does not change even if vehicle is moving
This may occur when reversing at very low speed
-
When parking vehicle with "Parallel Parking Assist" mode, screen changes even if vehicle is not moving
Display may change if vehicle has been stopped for a long time
-
"SYSTEM INITIALIZING" is displayed
Correct steering angle neutral point
Click here
HINT:
  1. *1: For models other than China models
  2. *2: For China models