Washer Fluid Level Warning Switch Circuit [08/2013 - ]: Procedure
- READ VALUE USING TECHSTREAM (WASHER SWITCH)
- Use the Data List to check if the level warning switch assembly is functioning properly. Refer to DATA LIST / ACTIVE TEST [08/2013 - ] .COMBINATION METER
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Washer Switch Level warning switch / ON or OFF ON: Fluid volume is less than 550 to 750 cc (33.5 to 45.7 cu.in.)
OFF: Fluid volume is more than 550 to 750 cc (33.5 to 45.7 cu.in.)- OK
On the Techstream screen, item changes between ON and OFF according to the above chart.
NG → See step 2
OK → See step 5
- Use the Data List to check if the level warning switch assembly is functioning properly. Refer to DATA LIST / ACTIVE TEST [08/2013 - ] .
- INSPECT LEVEL WARNING SWITCH ASSEMBLY
- Remove the level warning switch assembly. Refer to REMOVAL [08/2013 - ]
.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1 - 2 Fluid volume is more than 830 cc (50.6 cu.in.) 10 kΩ or higher 1 - 2 Fluid volume is less than 630 cc (38.4 cu.in.) Below 1 Ω HINT:
When the fluid volume is between 630 and 830 cc (38.4 cu.in. and 50.6 cu.in.) the level warning switch may be on or off.
NG → See step 6
OK: Go to next step
- Remove the level warning switch assembly. Refer to REMOVAL [08/2013 - ]
.
- CHECK WASHER WIRING ASSEMBLY
- Disconnect the A20 and A washer wiring assembly connectors.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A20-3 (S) - A-1 Always Below 1 Ω A20-6 (E) - A-2 Always Below 1 Ω A20-3 (S) - Body ground Always 10 kΩ or higher A20-6 (E) - Body ground Always 10 kΩ or higher
NG → REPLACE WASHER WIRING ASSEMBLY
OK: Go to next step
- Disconnect the A20 and A washer wiring assembly connectors.
- CHECK HARNESS AND CONNECTOR (WASHER WIRING ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND)
- Disconnect the A20 washer wiring assembly connector.
- Disconnect the G3 combination meter assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A20-3 (S) - G3-34 (WLVL) Always Below 1 Ω A20-6 (E) - Body ground Always Below 1 Ω A20-3 (S) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 7
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [08/2013 - ]
- REPLACE WASHER FLUID LEVEL WARNING SWITCH ASSEMBLY. Refer to REMOVAL [08/2013 - ]
- REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [08/2013 - ]