Lexus ES manuals

Lexus ES: Washer Fluid Level Warning Switch Circuit

DESCRIPTION

When the washer fluid level is lower than a certain level, a warning message is displayed on the combination meter assembly.

WIRING DIAGRAM

PROCEDURE

1.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Washer Level Warning Switch

Washer fluid level warning switch

OFF or ON

OFF: Washer fluid level not low

ON: Washer fluid level low

-

Body Electrical > Combination Meter > Data List

Tester Display

Washer Level Warning Switch

OK:

The Techstream display changes correctly in response to the washer fluid level.

OK

REPLACE COMBINATION METER ASSEMBLY

NG

2.

INSPECT LEVEL WARNING SWITCH ASSEMBLY

(a) Remove the level warning switch assembly.

Click here

(b) Inspect the level warning switch assembly.

Click here

NG

REPLACE LEVEL WARNING SWITCH ASSEMBLY

OK

3.

CHECK HARNESS AND CONNECTOR (LEVEL WARNING SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY)

(a) Disconnect the G17 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A3-1 (S) - G17-16 (WLVL)

Always

Below 1 Ω

A3-1 (S) or G17-16 (WLVL) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CHECK HARNESS AND CONNECTOR (LEVEL WARNING SWITCH ASSEMBLY - BODY GROUND)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A3-2 (E) - Body ground

Always

Below 1 Ω

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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 Parts Location

PARTS LOCATION ILLUSTRATION *A w/ Auto Wiper System - - *1 WINDSHIELD WIPER MOTOR ASSEMBLY *2 RAIN SENSOR *3 LEVEL WARNING SWITCH ASSEMBLY *4 WINDSHIELD WASHER MOTOR AND

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 Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the Techstream to read the Data List allows the values or states of

 Installation

INSTALLATION PROCEDURE 1. INSTALL LEVEL WARNING SWITCH ASSEMBLY (a) Install the level warning switch assembly as shown in the illustration. *a Protrusion *b Marking Install in this Direction NOTICE: Make sure that the protrusion of the level warning switch is between the 2 mark

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