Note
The following inspection procedure of the parking assist monitor system is described on the assumption that the navigation system*1 or audio and visual system*2 is normal. If navigation system*1 or audio and visual system*2 has any malfunction, first proceed with troubleshooting of the navigation system*1 or audio and visual system*2.
*1: for Navigation Receiver Type
*2: for Radio and Display Type
Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems are well as the parking assist monitor system may be needed.
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.
| Symptom | Suspected Area | See page |
|---|---|---|
| When the shift lever is in R, the parking assist monitor image is not displayed (screen is not black). | Proceed to "ECU Power Source Circuit" | |
| Proceed to ""CHK" message(s) are displayed on the SIGNAL CHECK screen" | ||
| When the shift lever is in R, the parking assist monitor image is not displayed (screen is black). | Proceed to "Image from Camera for Parking Assist Monitor is Abnormal" | |
| When the shift lever is not in R, the parking assist monitor image is displayed. | Proceed to ""CHK" message(s) are displayed on the SIGNAL CHECK screen" |
| Symptom | Suspected Area | See page |
|---|---|---|
| Parking assist monitor display malfunction (distortion of the color/screen) occurs continuously | Proceed to "Image from Camera for Parking Assist Monitor is Abnormal" | |
| Parking assist monitor display malfunction (distortion of the color/screen) occurs temporarily | Check the usage conditions (Explain to the customer that the displays 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 |
|---|---|---|
| Estimated course lines are not displayed | Parking assist monitor screen display mode settings (Check that estimated course line display mode is selected) | - |
| Parking assist ECU (for LHD) | ||
| Parking assist ECU (for RHD) | ||
| "System initializing" is displayed. | Correct the steering angle neutral point (Initialization) | |
| "System initializing" is displayed even after correcting the steering angle neutral point. | Spiral cable sub-assembly | |
| Correct the steering angle neutral point (Initialization) | ||
| Steering angle setting (Calibration) | ||
| Parking assist ECU (for LHD) | ||
| Parking assist ECU (for RHD) | ||
| "System not ready" is displayed. | Parking assist ECU initialization (Calibration) | |
| "System not ready" is displayed even after parking assist ECU initialization. | Parking assist ECU (for LHD) | |
| Parking assist ECU (for RHD) | ||
| During parallel parking assist mode, the screen does not change even though the vehicle has moved. | If vehicle is driven in reverse at very low speed, screen may not change | - |
| During parallel parking assist mode, the screen changes even though the vehicle has not moved. | If vehicle is stopped for extended period of time, screen may change | - |
| Guide lines and buttons are not displayed for all parking assist monitor screen display modes | Proceed to "Guide Lines and Buttons are not Displayed for All Display Modes" | |
| Proceed to ""CHK" message(s) are displayed on the SIGNAL CHECK screen" | ||
| The guide lines and buttons remain displayed even though the luggage compartment door is open | Proceed to "Guide Lines and Buttons are not Displayed for All Display Modes" | |
| 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 back door has been closed | Proceed to "Guide Lines and Buttons are not Displayed for All Display Modes" | |
| Proceed to ""CHK" message(s) are displayed on the SIGNAL CHECK screen" | ||
| "CHK" message(s) are displayed on the "Signal Check" screen. | Proceed to ""CHK" message(s) are displayed on the SIGNAL CHECK screen" | |
| A back door open warning message is displayed even after back door is closed. | Proceed to "Guide Lines and Buttons are not Displayed for All Display Modes" | |
| Main body ECU (multiplex network body ECU) | ||
| Parking assist ECU (for LHD) | ||
| Parking assist ECU (for RHD) | ||
| When an image of the area behind the vehicle is displayed, the lines are misaligned (the image from the camera is tilted) | Back camera position setting (Calibration) |