Inspection Procedure

1. Disconnect the W4 sensor connector.
2. Disconnect the W8 junction block connector.
3. Measure the resistance of the wire harness side connectors.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   W4-1 (SIG) - W8-10 (IG2)	Below 1 Ω
   W4-2 (MPX) - W8-9 (MPX1)	Below 1 Ω
   W4-3 (ES) - W8-17 (GND2)	Below 1 Ω

Fig 1: Identifying Rain Sensor And Overhead Junction Block Connector Terminals

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NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE RAIN SENSOR