Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Pointer Displayed/not Displayed Repeatedly

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Audio & Visual & Telematics / Audio / Video / Audio And Visual System (for 8 Inch Display) / 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 needed. Refer to Precaution for Audio and Visual System.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK 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 (remote operation controller assembly) may react to finger movements and repeatedly display and hide the pointer.
  • When accelerating excessively on rough roads, the remote touch (remote operation controller assembly) 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

END
C

GO TO STEP 4

A

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)
OK

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 or flick 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

REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY)

4.

CHECK CONNECTOR CONNECTION CONDITION

(a) Check if the J154 remote touch (remote operation controller assembly) connector is securely connected.

OK:

The connector is securely connected.

NG

SECURELY CONNECTED
OK

5.

CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) POWER SOURCE)

(a) Disconnect the J154 remote touch (remote operation controller assembly) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

J154-10 (GND) - Body ground

Engine switch off

Below 1 Ω

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

J154-1 (+B) - Body ground

Always

11 to 14 V

J154-6 (ACC) - Body ground

Engine switch on (ACC)

11 to 14 V
OK

REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
    Switch Operation of Remote Touch not Accepted
    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 Precau ...

    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 Precau ...

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