Wiper Motor Power Source 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
   LD-13 - LD-8 (SGND)	Engine switch off	Below 1 V
   	Engine switch on (IG)	10 to 14 V
   LD-13 - LD-9 (SGND)	Engine switch off	Below 1 V
   	Engine switch on (IG)	10 to 14 V
   LM-1 - LD-3 (GND)	Always	10 to 14 V

NG → See step   2 

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

1. Disconnect the LD and main body ECU LH (cowl side J/B LH) connectors.

   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
   LD-3 (GND) - Body ground	Always	Below 1 Ω
   LD-9 (SGND) - Body ground	Always	Below 1 Ω
   LD-8 (SGND) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage

   Tester Connection	Condition	Specified Condition
   LD-13 - Body ground	Engine switch off	Below 1 V
   	Engine switch on (IG)	10 to 14 V
   LM-1 - Body ground	Always	10 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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