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 | - |
| Tester Display |
|---|
| Washer Level Warning Switch |
OK:
The Techstream display changes correctly in response to the washer fluid level.
| OK | .gif) | REPLACE COMBINATION METER ASSEMBLY |
|
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| 2. | INSPECT LEVEL WARNING SWITCH ASSEMBLY |
(a) Remove the level warning switch assembly.
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(b) Inspect the level warning switch assembly.
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| NG | | REPLACE LEVEL WARNING SWITCH ASSEMBLY |
|
| 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 |
|
| 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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