Lexus NX: Pointer Displayed/not Displayed Repeatedly
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
-
When replacing the radio receiver assembly or navigation ECU, always replace it with a new one.
If a radio receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio receiver assembly or navigation ECU may not operate normally.
HINT:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.
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PROCEDURE
| 1. | CONFIRM SYMPTOMS |
(a) Recheck the situation when the malfunction occurs.
HINT:
- When a hand is rested on the remote touch screen while driving, the remote touch may react to finger movements and repeatedly display and hide the pointer.
- When accelerating excessively on rough roads, the remote touch may react to the acceleration and repeatedly display and hide the pointer.
| Result | Proceed to |
|---|---|
| Symptom occurs in any situation. | A |
| Symptom occurs when hand is rested on the remote touch screen while driving. | B |
| Symptom occurs when accelerating excessively on rough roads. | C |
| B | .gif) | END |
| C | | GO TO STEP 5 |
|
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| 2. | CHECK FOR FOREIGN MATTER |
(a) Check if there is any foreign matter around the remote touch screen that interferes with operation of the screen.
OK:
There is no foreign matter around the remote touch screen that interferes with operation of the screen.
| NG | | REMOVE FOREIGN MATTER (CHECK OPERATION AGAIN) |
|
| 3. | REMOTE TOUCH SELF CHECK (CHECK TOUCH SCREEN OPERATION POSITION RECOGNITION CONDITION) |
(a) Enter self-diagnostic mode.
Click here
| (b) Operate the remote touch screen diagonally from the upper left to the lower right and check that the brightness of the switch illumination changes. NOTICE: Since the remote touch screen may recognize a pinch in/out operation if operated with 2 fingers, always use 1 finger to operate the remote touch in self-diagnostic mode. OK: Brightness changes according to touch screen operation.
HINT: When the switch illumination blinks, the remote touch has stored a DTC. |
|
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| B | | REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) |
|
| 4. | REPLACE NAVIGATION ECU |
(a) Replace the navigation ECU with a new one.
Click here
(b) Check the malfunction disappears.
OK:
Malfunction disappears.
| OK | | END (NAVIGATION ECU IS DEFECTIVE) |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
| 5. | CHECK CONNECTOR CONNECTION CONDITION |
(a) Check if the P69 remote operation controller assembly (remote touch) connector is securely connected.
OK:
The connector is securely connected.
| NG | | SECURELY CONNECTED |
|
| 6. | CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - BATTERY AND BODY GROUND) |
(a) Disconnect the remote operation controller assembly (remote touch) connector.
| (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
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(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I71-1 (+B) - Body ground | Power switch off | 11 to 14 V |
| I71-6 (ACC) - Body ground | Power switch on (ACC) | 11 to 14 V |
| OK | | REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Pointer not Displayed on Screen or Pointer does not Move
CAUTION / NOTICE / HINT NOTICE: When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following
Black Screen
PROCEDURE 1. CHECK DISPLAY SETTING (a) Check that the display is not in screen off mode. OK: The display setting is not in screen off mode. NG CHANGE SCREEN TO SCREEN ON MODE
Steering Pad Switch Circuit
DESCRIPTION This circuit sends an operation signal from the steering pad switch assembly to the radio receiver assembly. If there is an open in the circuit, the audio system cannot be operated using t
SEE MORE:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
Click here HINT:
Use the table below to help determine the cau
Components
COMPONENTS ILLUSTRATION *1 LOWER OUTER MIRROR COVER LH *2 OUTER MIRROR BEZEL LH *3 OUTER MIRROR COVER LH *4 OUTER MIRROR LH *5 SIDE TURN SIGNAL LIGHT ASSEMBLY LH - -
