Inspection Procedure

1. Measure the resistance of the wire harness side connector.

   Standard resistance 

   TESTER CONNECTION - SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   B11-12 (GND) - Body ground	Below 1 Ω

2. Measure the voltage of the wire harness side connector.

   Standard voltage 

   TESTER CONNECTION - SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   B11-1 (AM) - Body ground	Always	10 to 14 V
   B11-2 (IGCT) - Body ground	Power switch ON (IG)	10 to 14 V
   B11-13 (IG2) - Body ground	Power switch ON (IG)	10 to 14 V

   Fig 1: Checking Wire Harness (Battery ECU - Battery And Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK : REPLACE BATTERY ECU