Inspection 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 / Data List.
5. Read the display on the Techstream.

   Body No. 5 (Front Controller) 

   DIAGNOSTIC NOTE REFERENCE CHART
   
   

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

NG: Go to step 2 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )

HINT

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

1. Fill the washer jar with washer fluid
2. Measure the resistance according to the value(s) in the table below

   Standard Resistance 

   TESTER CONNECTION TESTER CONNECTION CHART
   
   

   Tester Connection	Condition	Specified Condition
   1(S) - 2(E)	Fluid volume is more than 700 to 900 ml	10 kΩ or higher
   1(S) - 2(E)	Fluid volume is less than 700 to 900 ml	Below 1 Ω

Fig 1: Identifying Level Warning Switch Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE LEVEL WARNING SWITCH ASSEMBLY  (See WASHER LEVEL WARNING SWITCH  )

OK: Go to Next Step 

1. Disconnect the 2F front controller connector
2. Measure the resistance according to the value(s) in the table below

   Standard Resistance 

   TESTER CONNECTION TESTER CONNECTION CHART
   
   

   Tester Connection	Condition	Specified Condition
   2F-7 - A1-1 (S)	Always	Below 1 Ω
   A1-2 (E) - Body ground	Always	Below 1 Ω
   2F-7 - Body ground	Always	10 kΩ or higher

Fig 2: Identifying 2F Front Controller Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE FRONT CONTROLLER (MULTIPLEX NETWORK BODY ECU)