Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Pointer not Displayed on Screen or Pointer does not Move

CAUTION / NOTICE / HINT

NOTICE:

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.

Click here

PROCEDURE

1.

CHECK FOR FOREIGN MATTER

(a) Check if there is water or foreign matter on the remote touch screen.

OK:

There is no water or foreign matter on the remote touch screen.

OK

GO TO STEP 3

NG

2.

REMOVE FOREIGN MATTER

(a) Remove any water and foreign matter, and then wait approximately 30 seconds.

(b) Check that the pointer is displayed and moves normally.

OK:

The pointer is displayed and moves normally.

OK

END

NG

3.

REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) SELF CHECK (CHECK REMOTE 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 screen in self-diagnostic mode.

OK:

Brightness changes according to remote touch screen operation.

Result

Proceed to

Brightness of the switch illumination changes according to remote touch screen operation.

A

Brightness of the switch illumination does not change according to remote touch screen operation.

B

Switch illumination continues to blink.

HINT:

When the switch illumination blinks, the remote touch (remote operation controller assembly) has stored a DTC.

*a

Switch Illumination

*b

Remote Touch Screen

A

REPLACE RADIO RECEIVER ASSEMBLY

B

4.

CHECK REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY)

(a) Replace the remote touch (remote operation controller assembly) with a new or known good one.

Click here

(b) Check that the pointer is displayed and moves normally.

OK:

The pointer is displayed and moves normally.

OK

END (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) IS DEFECTIVE)

NG

REPLACE RADIO RECEIVER ASSEMBLY

    Pointer Displayed/not Displayed Repeatedly
    WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be need ...

    Black Screen
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