Lexus NX: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
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The following inspection procedure of the panoramic view monitor system is described 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 malfunction, first proceed with troubleshooting of the audio and visual system*1 or navigation system*2.
- *1: w/ Audio and Visual System
- *2: w/ Navigation System
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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 panoramic view monitor system may be needed.
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The following malfunctions may occur if a radio receiver assembly from another vehicle is installed to this vehicle. Therefore, when replacing the radio receiver assembly, be sure to replace it with new one.
- Communication malfunction DTC is output
- Does not operate normally
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.
General| Symptom | Suspected Area | Link |
|---|---|---|
| Screen does not switch when the panoramic view monitor main switch is pressed. | Refer to "Panoramic View Screen Description" in system description | |
| Proceed to "ECU Power Source Circuit" | | |
| Diagnostic mode - Signal connection check (CAMERA SW check) | | |
| Parking assist ECU | | |
| Does not switch to the panoramic view and rear view screen when the shift lever is in R. | Diagnostic mode - Signal connection check (CAN check) | |
| Parking assist ECU | | |
| Image not displayed on the panoramic view and rear view screen or rear view screen when the shift lever is in R. | Proceed to "Image from Camera for Panoramic View Monitor is Abnormal" | |
| Display does not switch to the see through view screen or moving view screen when the panoramic view monitor switch is pressed. | Refer to "Panoramic View Screen Description" in system description | |
| Diagnostic mode - Signal connection check (CAN check) | | |
| Diagnostic mode - Signal connection check (CAMERA SW check) | | |
| Parking assist ECU | | |
| Image not displayed on the see through view screen or moving view screen when the panoramic view monitor switch is pressed. | Proceed to "Image from Camera for Panoramic View Monitor is Abnormal" | |
| Display does not switch to the panoramic view and wide front view screen, panoramic view and cornering view screen or the panoramic view and side clearance view screen when the panoramic view monitor main switch is pressed. | Proceed to Description "Panoramic View Monitor Screen Display Conditions" | |
| Diagnostic mode - Signal connection check (CAN check) | | |
| Diagnostic mode - Signal connection check (CAMERA SW check) | | |
| Parking assist ECU | | |
| Image not displayed on the panoramic view and wide front view screen, panoramic view and cornering view screen or the panoramic view and side clearance view screen when the panoramic view monitor main switch is pressed. | Proceed to "Image from Camera for Panoramic View Monitor is Abnormal" | |
| Display does not switch to the retracted screen when the outer mirrors are retracted. | Diagnostic mode - Signal connection check (CAN check) | |
| Parking assist ECU | | |
| Display does not switch from the retracted screen when the outer mirrors are not in the retracted position. | Diagnostic mode - Signal connection check (CAN check) | |
| Parking assist ECU | |
| Symptom | Suspected Area | Link |
|---|---|---|
| Objects not displayed correctly on the panoramic view monitor screen (color, distorted image). | Proceed to "Image from Camera for Panoramic View Monitor is Abnormal" | |
| Distorted display on panoramic view screen. | Camera view adjustment (calibration) | |
| Parking assist ECU | | |
| Parking lines do not match at front and rear on panoramic view screen. | Camera view adjustment (calibration) | |
| Parking assist ECU | | |
| Partial black screen on panoramic view screen. | Camera view adjustment (calibration) | |
| Proceed to "Image from Camera for Panoramic View Monitor is Abnormal" | | |
| Parking assist ECU | | |
| Area displayed differs from the actual area. | Ensure no door is opened | - |
| Camera view adjustment (calibration) | | |
| Parking assist ECU | |
| Symptom | Suspected Area | Link |
|---|---|---|
| Combination switch assembly (panoramic view monitor main switch) night illumination does not illuminate. | Inspect No. 2 combination switch assembly (panoramic view monitor main switch) | |
| Harness and connector | - | |
| Remote touch switch operation is not accepted. | Audio and visual system - Remote touch self check*1 | |
| Navigation system - Remote touch self check*2 | | |
| Parking assist ECU | | |
| Radio receiver assembly | | |
| The remote touch function of the screen does not operate for the panoramic view monitor system. | Parking assist ECU | |
| Radio receiver assembly | |
| Symptom | Suspected Area | Link |
|---|---|---|
| When the vehicle speed increases in the automatic display mode, the panoramic view and wide front view screen, panoramic view and cornering view screen, or the panoramic view and side clearance view screen remains displayed, without switching to the navigation screen. | Replace parking assist ECU | |
| The screen display timer function does not operate if the manual display mode is selected. | Refer to "Panoramic View Screen Description" in system description | |
| Parking assist ECU | | |
| The estimated course lines do not match the vehicle width extension lines when the steering wheel points straight ahead. | Check the steering wheel installation angle | |
| Adjust steering angle | | |
| Camera view adjustment (calibration) | | |
| Parking assist ECU | | |
| Estimated course lines stop moving before the steering wheel is turned fully left. | Steering angle setting (calibrate stored maximum steering angle) | |
| "!" is displayed and estimated course lines are not displayed. | Check if the back door is not open | - |
| Parking assist ECU | | |
| Radio receiver assembly | | |
| Estimated course lines are not displayed. | Check the panoramic view monitor screen display mode settings (Check if the estimated course lines display is set to off) | |
| Parking assist ECU | | |
| "!" is displayed. | Store the steering angle sensor steering neutral point | |
| Diagnostic mode - Signal connection check (CAN check) | | |
| "!" remains displayed after the steering neutral point is stored. | Adjust steering angle | |
| Steering sensor | | |
| Parking assist ECU | | |
| "!" is displayed and all the buttons on the screen are grayed out. | Camera view adjustment (calibration) | |
| Adjust steering angle | | |
| Audio and Visual System*1 | | |
| Navigation System*2 | | |
| "!" is displayed and all the buttons on the screen are grayed out even after television camera controller initialization has been completed. | Parking assist ECU | |
| Audio and Visual System*1 | | |
| Navigation System*2 | | |
| Guide lines and buttons are not displayed on the panoramic view and rear view screen display screen. | Check if the back door is not open | - |
| Check if the luggage light turns on and off normally (If not, refer to Lighting System (Interior) - Problem Symptoms Table) | | |
| Parking assist ECU | | |
| "CHK" is displayed for an item on the Vehicle Signal Check screen. | Diagnostic mode - Signal connection check | |
| Blind spots in image. | Ensure no door is opened | - |
| Camera view adjustment (calibration) | | |
| Camera boundary lines are poorly connected. | Camera view adjustment (calibration) | |
| Estimated course lines are displaced. | Camera view adjustment (calibration) | |
| Adjust steering angle | | |
| All buttons on the panoramic view monitor are continuously grayed out | Audio and Visual System*1 | |
| Navigation System*2 | |
- *1: w/ Audio and Visual System
- *2: w/ Navigation System
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU PARKING ASSIST ECU (a) Disconnect the P44 parking assist ECU connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol)
Diagnosis System
DIAGNOSIS SYSTEM PARKING ASSIST MONITOR DIAGNOSIS SYSTEM (a) For panoramic view monitor system diagnosis, signals received by the parking assist ECU can be checked, and the panoramic view monitor syst
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Chassis / Panoramic View Monitor / Tro
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Precaution
PRECAUTION WHEN DISCONNECTING AUXILIARY BATTERY CABLE NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.
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When disconnecting and reconnecting the auxiliary battery.
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Removal
REMOVAL PROCEDURE 1. REMOVE FRONT SUSPENSION CROSSMEMBER SUB-ASSEMBLY Click here 2. REMOVE FRONT STABILIZER LINK ASSEMBLY LH (a) Remove the nut and front stabilizer link assembly LH. HINT: If the ball joint turns together with the nut, use a 6 mm hexagon wrench to hold the stud bolt.
