Wiper And Washer System Washer Fluid Level Warning Switch Circuit

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Wiper And Washer. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE OF INTELLIGENT TESTER (WASHER LEVEL)

CHECK HARNESS AND CONNECTOR (FRONT CONTROLLER (ENGINE ROOM NO. 2 J/B) - BODY GROUND)

CHECK WASHER FLUID LEVEL SENSOR

WIPER AND WASHER SYSTEM - Washer Fluid Level Warning Switch Circuit


DESCRIPTION

The front controller receives washer fluid level warning switch condition (on or off) information, and sends it through multiplex communication lines to the combination meter.
The combination meter receives this information, and turns on the washer fluid level warning light when the washer fluid becomes low.

WIRING DIAGRAM


Lexus Is250, Is220D. Gse20 Ale20.Wiper And Washer.Wiper And Washer System.Wiper And Washer System Washer Fluid Level Warning Switch Circuit


INSPECTION PROCEDURE

1.READ VALUE OF INTELLIGENT TESTER (WASHER LEVEL)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and turn the intelligent tester main switch on.

  1. Select the item below in the DATA LIST, and read the displays on the intelligent tester.

    Body No. 5 (Front Controller):
    Item
    		Measurement Item / Display (Range)
    		Normal Condition
    		Diagnostic Note
    Washer Level Switch
    		Washer fluid level switch / ON or OFF
    		ON: Washer fluid is empty
    OFF: Washer fluid is full
    		-


NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2.CHECK HARNESS AND CONNECTOR (FRONT CONTROLLER (ENGINE ROOM NO. 2 J/B) - BODY GROUND)


    Lexus Is250, Is220D. Gse20 Ale20.Wiper And Washer.Wiper And Washer System.Wiper And Washer System Washer Fluid Level Warning Switch Circuit

  1. Disconnect the 2F front controller (engine room No. 2 J/B) connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2F-7 (WLVL) - Body ground
    		Washer fluid is full
    		10 kΩ or higher
    2F-7 (WLVL) - Body ground
    		Washer fluid is empty
    		Below 1 Ω


NG
Go to step 3
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

3.CHECK WASHER FLUID LEVEL SENSOR


    Lexus Is250, Is220D. Gse20 Ale20.Wiper And Washer.Wiper And Washer System.Wiper And Washer System Washer Fluid Level Warning Switch Circuit

  1. Disconnect the A1 washer fluid level sensor connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A1-1 - A1-2
    		Washer fluid is empty
    		Below 1 Ω
    A1-1 - A1-2
    		Washer fluid is full
    		10 kΩ or higher


NG
REPLACE WASHER FLUID LEVEL SENSOR
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR