INTELLIGENT PARKING ASSIST SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

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 areas below.

Note

The following inspection procedure of the intelligent parking assist 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 page
When the shift lever is in R, the intelligent parking assist image is not displayed (screen is not black).	Reverse signal circuit (Navigation System (for HDD))	Click here
	Reverse signal circuit (Navigation System (for DVD))	Click here
	Navigation receiver assembly	Click here
When the shift lever is in R, the intelligent parking assist image is not displayed (screen is black).	Power source circuit	Click here
	Image from camera for intelligent parking assist is abnormal	Click here
	Parking assist ECU	Click here
When the shift lever is not in R, the intelligent parking assist image is displayed.	Reverse signal circuit (Navigation System (for HDD))	Click here
	Reverse signal circuit (Navigation System (for DVD))	Click here
	Navigation receiver assembly	Click here
	Parking assist ECU	Click here

Display Malfunction
Symptom	Suspected Area	See page
Image from camera for the intelligent parking assist is abnormal.	Image from camera for intelligent parking assist is abnormal	Click here
	Parking assist ECU	Click here

Switch Malfunction
Symptom	Suspected Area	See page
The illumination of the parking assist pre support switch does not illuminate.	Parking assist pre support switch inspection	Click here
	Harness or connector	-
The touch switch on the navigation receiver display does not operate at all.	Touch SW inspection (Navigation System)	Click here
	Navigation receiver assembly	Click here
	Parking assist ECU	Click here

Pre support Function Malfunction
Symptom	Suspected Area	See page
Pre support function does not operate.	Pre support function operation condition (System Description)	Click here
	Signal check (Diagnosis System)	Click here
	Parking assist ECU	Click here
When the target parking position is set after pre-support operation, the initial display position of the target parking space is very far from the actual parking space.	Pre support function (System Description)	Click here
	Notes for ultrasonic sensor (Precaution)	Click here
	Ultrasonic sensor	Click here
	Front bumper cover	Click here
	Parking assist ECU	Click here
"Check IPA System. Have your vehicle checked by a dealer." is displayed on the pre support screen.	Parking assist ECU	Click here
"IPA not available now." is displayed on the pre support screen.	Correct the steering angle neutral point	Click here
"IPA not available now." is displayed on the pre support screen though the steering angle neutral point has been corrected.	Spiral with sensor cable sub-assembly	Click here
	Steering angle setting (Diagnosis System)	Click here
	Parking assist ECU	Click here

Intelligent Parking Assist Function Malfunction
Symptom	Suspected Area	See page
The vehicle width extension line is not overlapping with the predicted path line when the steering wheel is centered.	Check the installation of steering wheel	-
	Steering angle setting (Diagnosis System)	Click here
	Check the installation of rear television camera assembly	Click here
	Height control sensor vehicle height difference setting	Click here
	Rear television camera optical axis adjustment	Click here
	Parking assist ECU	Click here
The predicted path line stops before turning the steering wheel to the lock position.	Steering angle setting (Diagnosis System)	Click here
"Check IPA System. Have your vehicle checked by a dealer." is displayed on the intelligent parking assist screen.	Parking assist ECU	Click here
Projected course guidelines are not displayed on the intelligent parking assist screen.	Check the display setting on the parking assist monitor screen	Click here
	Parking assist ECU	Click here
"System initializing." is displayed.	Correct the steering angle neutral point	Click here
"System initializing." is displayed though the steering angle neutral point has been corrected.	Spiral with sensor cable sub-assembly	Click here
	Steering angle setting (Diagnosis System)	Click here
	Parking assist ECU	Click here
"System not ready." is displayed.	Parking assist ECU initialization	Click here
"System not ready." is displayed though the parking assist ECU initialization has been performed.	Parking assist ECU	Click here
The assist operation stops frequently ("System cannot assist under current conditions." is displayed).	Inspect the tire (tire size, tire pressure, tire worn)	-
	Parking assist ECU	Click here
The assist operation stops frequently ("Use on flat surface." is displayed).	Parking assist ECU	Click here
A set parking position and an actual parking position swerve to the right or the left at parallel parking mode.	Parallel parking offset (Diagnosis System)	Click here
A rear bumper edge and a bumper reference line swerve at the intelligent parking assist screen.	Check the installation of the rear television camera assembly	Click here
	Height control sensor vehicle height difference setting	Click here
	Rear television camera optical axis adjustment	Click here
The vehicle does not move to a set parking position.	Vehicle does not move to set parking position	Click here
When the target parking position is set, the initial display position of the target parking space is very far from the actual parking position.	Notes for ultrasonic sensor (Precaution)	Click here
	Ultrasonic sensor	Click here
	Front bumper cover	Click here
	Parking assist ECU	Click here
During parallel parking assist mode for parking assist monitor screen, the screen does not change even though the vehicle has moved.	If vehicle is reversing at very low speed, screen may not change	-
During parallel parking assist mode for parking assist monitor screen, the screen changes even though the vehicle has not moved.	If vehicle is stopped for extended period of time, screen may change	-
"CHK" message(s) are displayed on the SIGNAL CHECK screen.	"CHK" message(s) are displayed on the SIGNAL CHECK screen	Click here
A back door open warning message is displayed even after the back door is closed.	"Message indicating back door is open is displayed even after back door is closed"	Click here

Guide Voice Malfunction
Symptom	Suspected Area	See page
A guide voice for the intelligent parking assist system is mute or too small (a voice for navigation system is normal).	Check the DTC (Navigation System (for HDD))	Click here
	Check the DTC (Navigation System (for DVD))	Click here
	Parking assist ECU	Click here
	Navigation receiver assembly	Click here