Washer Fluid Level Warning Switch Circuit [11/2023 - ]: Procedure

1. Read the Data List according to the display on the GTS.

   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 GTS display changes correctly in response to the washer fluid level.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

Result: 

NG 

See step  2

1. Remove the level warning switch assembly.

   Refer to REMOVAL [11/2023 - ]

2. Inspect the level warning switch assembly.

   Refer to INSPECTION [12/2019 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE LEVEL WARNING SWITCH ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

Result: 

OK 

See step  3

1. Disconnect the H21 or H112 combination meter assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A3-1 (S) - H21-17 (WLVL)*1	Always	Below 1 Ω
   A3-1 (S) - H112-13 (WLVL)*2
   A3-1 (S) or H21-17 (WLVL) - Body ground*1	Always	10 kΩ or higher
   A3-1 (S) or H112-13 (WLVL) - Body ground*2

   *1: w/ 7 Inch Display*2: w/ 12. 3 Inch Display

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. 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

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR