Problem Symptoms Table

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms the 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.
Inspect the fuses and relays related to this system before inspecting the suspected area below.
The following inspection procedure of the side monitor system is described on the assumption that the navigation system is normal. If navigation system has any malfunction, first proceed with troubleshooting of the navigation system.

GENERAL

Symptom	Suspected Area	See
When the front and side monitor main switch on, the side monitor image is not displayed (screen is not black).	ECU power source circuit	Refer to TERMINALS OF ECU
	"CHK" message(s) are displayed on the SIGNAL CHECK screen	Refer to "CHK" message(s) are displayed on the SIGNAL CHECK screen.
	Images from all cameras are abnormal	Refer to Images from All Cameras are Abnormal
	Parking assist ECU	Refer to REMOVAL
When the front and side monitor main switch on, the side monitor image is not displayed (screen is black).	Image from camera for side monitor is abnormal	Refer to Image from Camera for Side Monitor is Abnormal
	Parking assist ECU	Refer to REMOVAL
When the front and side monitor main switch off, the side monitor image is displayed.	"CHK" message(s) are displayed on the SIGNAL CHECK screen	Refer to "CHK" message(s) are displayed on the SIGNAL CHECK screen.
	Parking assist ECU	Refer to REMOVAL

DISPLAY MALFUNCTION

Symptom	Suspected Area	See
Images from all cameras are abnormal.	Images from all cameras are abnormal	Refer to Images from All Cameras are Abnormal
Images from all cameras are abnormal.	Parking assist ECU	Refer to REMOVAL
Image from camera for side monitor is abnormal (rear view monitor system is normal).	Image from camera for side monitor is abnormal	Refer to Image from Camera for Side Monitor is Abnormal
	Parking assist ECU	Refer to REMOVAL

SIDE MONITOR SYSTEM MALFUNCTION

Symptom	Suspected Area	See
"CHK" message(s) are displayed on the SIGNAL CHECK screen.	"CHK" message(s) are displayed on the SIGNAL CHECK screen	Refer to "CHK" message(s) are displayed on the SIGNAL CHECK screen.