Inspection Procedure

1. Disconnect the B29 battery current sensor connector.
2. Measure the resistance.

   Standard resistance 

   CONNECTOR TERMINALS RESISTANCE REFERENCE AND CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   1 (THB) - 4 (E2)	24 to 26°C (75.2 to 78.8°F)	1.91 to 2.065 kΩ

   Fig 1: Identifying B29 Battery Current Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE BATTERY CURRENT SENSOR 

OK: Go TO NEXT STEP. 

1. Disconnect the B29 battery current sensor connector.
2. Disconnect the B30 ECM connectors.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   CONNECTOR TERMINALS RESISTANCE REFERENCE AND CONDITION
   
   

   Tester Connection	Specified Condition
   B29-1 (THB) - B30-103 (THB)	Below 1 Ω
   B29-4 (E2) - B30-101 (EIB)	Below 1 Ω
   B29-1 (THB) or B30-103 (THB) - Body ground	10 kΩ or higher

   Fig 2: Identifying B29 Battery Current Sensor & B30 ECM Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE ECM