Washer Motor Circuit: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Body No. 5 / Active Test.
5. Check the operation.
   BODY NO. 5 (FRONT CONTROLLER)
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Washer Motor Operation	Washer motor	OFF/ON	-

   OK

   Washer motor operates.

NG → See step   2 

OK → See step   6 

HINT: 

The following check should be performed with the windshield washer motor and pump assembly installed to the washer jar.

1. Fill the washer jar with washer fluid.
2. Connect a positive (+) battery lead to terminal 1 of the washer motor, and a negative (-) battery lead to terminal 2.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Check that washer fluid flows from the washer jar.

   OK

   Washer fluid is pumped from the washer jar.

NG → See step   7 

OK: Go to next step 

1. Disconnect the A4 windshield washer motor and pump assembly 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
   A4-2 - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the 2F front controller 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
   A4-1 - 2F-4	Always	Below 1 Ω
   A4-1 - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the 2E front controller connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   2E-1 - Body ground	Always	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE FRONT CONTROLLER (MULTIPLEX NETWORK BODY ECU)