Washer Fluid Level Warning Switch Circuit: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream main switch on.
3. Select the item below in the DATA LIST, and read the displays on the Techstream.
   BODY NO. 5 (FRONT CONTROLLER):
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   Washer Level Switch	Washer fluid level switch / ON or OFF	ON: Washer fluid is empty OFF: Washer fluid is full	-

NG → See step   2 

OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

1. Disconnect the 2F front controller (engine room No. 2 J/B) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   2F-7 - Body ground	Washer fluid is full	10 kΩ or higher
   2F-7 - Body ground	Washer fluid is empty	Below 1 Ω

NG → See step   3 

OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

1. Disconnect the A1 washer fluid level sensor connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   A1-1 - A1-2	Washer fluid is empty	Below 1 Ω
   A1-1 - A1-2	Washer fluid is full	10 kΩ or higher

NG → REPLACE WASHER FLUID LEVEL SENSOR 

OK → REPAIR OR REPLACE HARNESS OR CONNECTOR