Lexus ES manuals

Lexus ES: Washer Fluid Level Warning Switch Circuit

Lexus ES (XZ10) Service Manual / Vehicle Exterior / Wiper / Washer / Wiper And Washer System (for Gasoline Model) / 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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