Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

(a) Check the front washer operation.

(1) Connect a voltmeter positive (+) lead to terminal J31-5 (WR) and a negative (-) lead to terminal J33-7 (WF).

*a

Component with harness connected

(Windshield Wiper Switch Assembly)

(2) Turn the engine switch to ON.

(3) Turn the washer switch on and off, and check the voltage between terminals J31-5 (WR) and J33-7 (WF).

OK:

Voltage changes as shown in the following illustration.

If the result is not as specified, replace the windshield wiper switch assembly.

(b) Check the rear washer operation.

(1) Connect a voltmeter positive (+) lead to terminal J33-7 (WF) and a negative (-) lead to terminal J31-5 (WR).

*a

Component with harness connected

(Windshield Wiper Switch Assembly)

(2) Turn the engine switch to ON.

(3) Turn the washer switch on and off, and check the voltage between terminals J33-7 (WF) and J31-5 (WR).

OK:

Voltage changes as shown in the following illustration.

If the result is not as specified, replace the windshield wiper switch assembly.

    Components
    COMPONENTS ILLUSTRATION *1 LOWER STEERING COLUMN COVER *2 UPPER STEERING COLUMN COVER *3 WINDSHIELD WIPER SWITCH ASSEMBLY - - N*m (kgf*cm, ft.*lbf): Specified torque - - ...

    Inspection
    INSPECTION PROCEDURE 1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Front Washer Switch Tester Connect ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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