Lexus RX (RX 350L, RX450h) 2016-2022 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.

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PROCEDURE

(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

(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

(a) Enter self-diagnostic mode.

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(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

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

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(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