Note
The following inspection procedures for the intelligent parking assist system are based on the assumption that the audio and visual system*1 or navigation system*2*3 is normal. If the audio and visual system*1 or navigation system*2*3 has any malfunctions, first proceed with troubleshooting the audio and visual system*1 or navigation system*2*3.
Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the intelligent parking assist system may be needed Click here.
*1: for Radio and Display Type (w/o Navigation System)
*2: for Radio and Display Type (w/ Navigation System)
*3: for Navigation Receiver Type
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 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 the shift lever is in R, an image of the area behind the vehicle is not displayed (screen is not black) | Proceed to "Reverse Signal Circuit"*1 | |
| Proceed to "Reverse Signal Circuit"*2 | ||
| Proceed to "Reverse Signal Circuit"*3 | ||
| Radio and display receiver assembly*1*2 | ||
| Navigation receiver assembly*3 | ||
| When the shift lever is in R, an image of the area behind the vehicle is not displayed (screen is black) | Proceed to "ECU Power Source Circuit" | |
| Proceed to "Image from Camera for Intelligent Parking Assist is Abnormal" | ||
| Parking assist ECU | ||
| When the shift lever is not in R, an image of the area behind the vehicle is displayed | Proceed to "Reverse Signal Circuit"*1 | |
| Proceed to "Reverse Signal Circuit"*2 | ||
| Proceed to "Reverse Signal Circuit"*3 | ||
| Radio and display receiver assembly*1*2 | ||
| Navigation receiver assembly*3 | ||
| Parking assist ECU |
| Symptom | Suspected Area | See page |
|---|---|---|
| Intelligent parking assist display malfunction (distortion of the color/screen) occurs continuously | Proceed to "Image from Camera for Intelligent Parking Assist is Abnormal" | |
| Parking assist ECU | ||
| Estimated course lines are displayed with steering linked lines and fixed lines overlapping | Proceed to "Guide Lines are Displayed with Vehicle Center Line" | |
| Intelligent parking assist display malfunction (distortion of the color/screen) occurs temporarily | Check the usage conditions (explain to the customer that the display may be temporarily distorted when the vehicle is close to an object that transmits radio waves, such as a telecommunication tower, an airport or a truck equipped with a transceiver) | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| The illumination of the parking assist pre support switch assembly does not illuminate | Parking assist pre support switch assembly inspection | |
| Harness or connector | - | |
| The touch switches on the navigation receiver assembly display do not operate at all | Touch SW inspection*1 | |
| Touch SW inspection*2 | ||
| Touch SW inspection*3 | ||
| Radio and display receiver assembly*1*2 | ||
| Navigation receiver assembly*3 | ||
| Parking assist ECU |
| Symptom | Suspected Area | See page |
|---|---|---|
| Pre support function does not operate | Pre support function operation condition (System Description) | |
| Signal check (Diagnosis System) | ||
| Parking assist ECU | ||
| 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) | |
| Notes for ultrasonic sensor (Precaution) | ||
| No. 1 ultrasonic sensor | ||
| Front bumper cover | ||
| Parking assist ECU | ||
| "Check IPA System. Have your vehicle checked by a dealer." is displayed on the pre support screen | Parking assist ECU | |
| Signal check (Diagnosis system) | ||
| "IPA not available now." is displayed on the pre support screen | Parking assist ECU | |
| "IPA not available now." is displayed on the pre support screen though the steering angle neutral point has been corrected | Spiral cable with sensor sub-assembly | |
| Steering angle setting (Diagnosis System) | ||
| Parking assist ECU |
| Symptom | Suspected Area | See page |
|---|---|---|
| The vehicle width extension lines do not overlap with the predicted path lines when the steering wheel is centered | Check the installation of steering wheel | - |
| Steering angle setting (Diagnosis System) | ||
| Check the installation of rear television camera assembly | ||
| Height control sensor vehicle height difference setting | ||
| Rear television camera optical axis adjustment | ||
| Parking assist ECU | ||
| The predicted path lines stop before the steering wheel is turned to the lock position | Steering angle setting (Diagnosis System) | |
| "Check IPA System. Have your vehicle checked by a dealer." is displayed on the intelligent parking assist screen | Parking assist ECU | |
| Projected course guide lines are not displayed on the intelligent parking assist screen | Parking assist ECU | |
| "System initializing." is displayed | Correct the steering angle neutral point | |
| "System initializing." is displayed though the steering angle neutral point has been corrected | Spiral cable with sensor sub-assembly | |
| Steering angle setting (Diagnosis System) | ||
| Parking assist ECU | ||
| "System not ready." is displayed | Parking assist ECU initialization | |
| "System not ready." is displayed though the parking assist ECU initialization has been performed | Parking assist ECU | |
| Assist operation stops frequently ("System cannot assist under current conditions." is displayed) | Inspect the tires (tire size, tire pressure, tire wear) | - |
| Parking assist ECU | ||
| Assist operation stops frequently ("Use on flat surface." is displayed) | Parking assist ECU | |
| The set parking position and actual parking position are misaligned either to the right or left in parallel parking mode | Parallel parking offset (Diagnosis System) | |
| 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 | |
| Height control sensor vehicle height difference setting | ||
| Rear television camera optical axis adjustment | ||
| Parts of the bumper reference line are not displayed | Height control sensor vehicle height difference setting | |
| Rear television camera optical axis adjustment | ||
| The vehicle does not move to the set parking position | Proceed to "Vehicle does not move to set parking position" | |
| 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) | |
| No. 1 ultrasonic sensor | ||
| Front bumper cover | ||
| Parking assist ECU | ||
| "CHK" message(s) are displayed on the SIGNAL CHECK screen | Proceed to ""CHK" message(s) are displayed on the SIGNAL CHECK screen" | |
| When adjusting the camera optical axis, "Back door is open. Do not use the rear view monitor when the back door is not completely closed." is displayed even after the luggage compartment door has been closed | Check that the No. 1 luggage compartment light assembly illuminates normally (if not, refer to Lighting System (INT) - Problem Symptoms Table) | |
| Parking assist ECU |
| Symptom | Suspected Area | See page |
|---|---|---|
| The guide voice for the intelligent parking assist system is inaudible or too quiet (the voice for the navigation system is normal) | Check DTCs*1 | |
| Check DTCs*2 | ||
| Check DTCs*3 | ||
| Parking assist ECU | ||
| Radio and display receiver assembly*1*2 | ||
| Navigation receiver assembly*3 |
*1: for Radio and Display Type (w/o Navigation System)
*2: for Radio and Display Type (w/ Navigation System)
*3: for Navigation Receiver Type