Wiper Switch (HI Speed) Circuit: Procedure

1. Using the Techstream, read the Data List.
   BODY NO. 5
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Front Wiper Hi Switch	Front wiper HI switch / ON or OFF	ON: Front wiper switch in HI position OFF: Wiper switch not in HI position	-

   OK

   Wiper switch operates.

NG → See step   2 

OK → See step   5 

1. Remove the windshield wiper switch. Refer to REMOVAL [01/2012 - ] .

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   4 (+2) - 2 (+B)	Wiper switch in HI position	Below 1 Ω
   4 (+2) - 2 (+B)	Wiper switch not in HI position	10 kΩ or higher

NG → See step   4 

OK: Go to next step 

1. Disconnect the E16 switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the E89 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E16-4 (+2) - E89-9 (2S)	Always	Below 1 Ω
   E16-2 (+B) - E89-6 (ES)
   E89-9 (2S) - Body ground	Always	10 kΩ or higher
   E89-6 (ES) - Body ground

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5