Wiper Switch (HI Speed) Circuit: Procedure

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

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   Standard voltage

   Tester Connection	Condition	Specified Condition
   Q2-11 (2S) - Body ground	Wiper switch not in HI position	10 to 14 V
   Q2-11 (2S) - Body ground	Wiper switch in HI position	Below 1 V

NG → See step   2 

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

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Condition	Specified Condition
   3 (2S) - 5 (E)	Wiper switch in HI position	Below 1 Ω
   3 (2S) - 5 (E)	Wiper switch not in HI position	10 kΩ or higher

NG → REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY 

OK: Go to next step 

1. Disconnect the J26 windshield wiper switch 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
   J26-5 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the Q2 main body ECU LH (cowl side J/B LH) 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
   J26-3 (2S) - Q2-11 (2S)	Always	Below 1 Ω
   Q2-11 (2S) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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