Lexus ES: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
- The following inspection procedures for the parking assist monitor system are based on the assumption that the audio and visual system*1 or navigation system*2 is normal. If the audio and visual system*1 or navigation system*2 has any malfunctions, first proceed with troubleshooting the audio and visual system*1 or navigation system*2.
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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 parking assist monitor system may be needed.
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- *1: w/o Navigation System
- *2: w/ Navigation System
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 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| 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" | |
| Multi-display assembly | | |
| When the shift lever is in R, an image of the area behind the vehicle is not displayed (screen is black) | Proceed to "Black Screen" | |
| Multi-display assembly | | |
| When the shift lever is not in R, an image of the area behind the vehicle is displayed | Proceed to "Reverse Signal Circuit" | |
| Multi-display assembly | | |
| When the shift lever is in R, an image of the area behind the vehicle is displayed and then switches to another image | Proceed to "Reverse Signal Circuit" | |
| Multi-display assembly | |
| Symptom | Suspected Area | Link |
|---|---|---|
| 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 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 | Link |
|---|---|---|
| Estimated course lines are not displayed | Parking assist monitor screen display mode settings (Check that estimated course line display mode is selected) | - |
| Correct the steering angle neutral point (Initialization) | | |
| Steering angle setting (Calibration) | | |
| Rear television camera assembly | | |
| Steering sensor | | |
| Estimated course lines stop moving before the steering wheel is turned fully left. | Steering angle setting (Calibration) | |
| The estimated course lines do not match the vehicle width extension lines when the steering wheel points straight ahead. | Check the installation of steering wheel | |
| Correct the steering angle neutral point (Initialization) | | |
| Steering angle setting (Calibration) | | |
| Check that the rear television camera assembly is correctly installed | | |
| Back camera position setting (Calibration) | | |
| Rear television camera assembly | | |
| Steering sensor | | |
| The guide lines are not displayed even though the luggage compartment door is closed | Check that the No. 1 luggage compartment light assembly illuminates normally (if not, refer to Lighting System (INT) - Problem Symptoms Table) | |
| Rear television camera assembly | | |
| The guide lines remain displayed even though the luggage compartment door is open | Check that the No. 1 luggage compartment light assembly illuminates normally (if not, refer to Lighting System (INT) - Problem Symptoms Table) | |
| Rear television camera assembly | | |
| "!" mark is displayed. | Correct the steering angle neutral point (Initialization) | |
| "!" mark remains displayed after the steering neutral point is corrected. | Steering angle setting (Calibration) | |
| Steering sensor | | |
| Rear television camera assembly | | |
| When adjusting the camera optical axis, "You can not calibrate the camera when the door is open. Please close the door." is displayed even after the has been closed | Check that the No. 1 luggage compartment light assembly illuminates normally (if not, refer to Lighting System (INT) - Problem Symptoms Table) | |
| Rear television camera assembly | | |
| "CHK" message(s) are displayed on the signal check screen | Signal check (Diagnosis system) | |
| 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) | |
| Symptom | Suspected Area | Link |
|---|---|---|
| A switch displayed on the parking assist monitor screen does not respond when pushed, or a switch other than the pushed switch responds. | Rear television camera assembly | |
| Proceed to "Remote Touch Function" in Audio and Visual System*1 | | |
| Proceed to "Remote Touch Function" in Navigation System*2 | | |
| Multi-display assembly | | |
| A beep sound is not emitted when a switch displayed on the parking assist monitor screen is pushed. | Check the setting on the audio screen (General setting) | - |
| Proceed to "Remote Touch Function" in Audio and Visual System*1 | | |
| Proceed to "Remote Touch Function" in Navigation System*2 | | |
| Rear television camera assembly | | |
| Multi-display assembly | | |
| The language of the messages displayed on the parking assist monitor screen cannot be changed. | Check the setting on the audio screen (General setting) | - |
| Rear television camera assembly | | |
| Multi-display assembly | | |
| The switches displayed on the parking assist monitor screen are grayed out. | Rear television camera assembly | |
| Multi-display assembly | | |
| The color of the switches displayed on the parking assist monitor screen are abnormal, or the switches are not dimmed when the headlights are turned on. | Check the setting on the audio screen (Screen adjustment) | - |
| Proceed to "Display does not Dim when Light Control Switch is Turned ON"*1 | | |
| Proceed to "Display does not Dim when Light Control Switch is Turned ON"*2 | | |
| Rear television camera assembly | | |
| Multi-display assembly | |
- *1: w/o Navigation System
- *2: w/ Navigation System
READ NEXT:
Reverse Signal Circuit
DESCRIPTION The multi-display receives a reverse signal from the BK UP LP relay*1 or clearance warning ECU assembly*2.
*1: w/o Parking Support Alert System
*2: w/ Parking Support Alert System
System Description
SYSTEM DESCRIPTION GENERAL (a) This system has a rear television camera assembly mounted on the luggage compartment door to display an image of the area behind the vehicle on the multi-display. The mu
System Diagram
SYSTEM DIAGRAM Communication Table Sender Receiver Signal Line Radio Receiver Assembly Multi-display Assembly Camera information signal GVIF Radio Receiver Assembly Rear Tel
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