Inspection Procedure

1. Disconnect the H14 HV control ECU connector.
   Fig 1: Disconnecting H14 HV Control ECU Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the A18 center airbag sensor connector.
3. Turn the power switch ON (IG).
4. Measure the voltage between the terminal of the HV control ECU connector and body ground.

   Standard voltage 

   TERMINALS VOLTAGE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   ABFS (H14-20) - Body ground	Below 1 V

5. Turn the power switch OFF.
6. Measure the resistance between the wire harness side connectors.
   Fig 2: Disconnecting A18 Center Airbag Sensor Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance (Check for open) 

   TERMINALS RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   ABFS (H14-20) - GSW2 (A18-22)	Below 1 Ω

   Standard resistance (Check for short) 

   TERMINALS RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   ABFS (H14-20) or GSW2 (A18-22) - Body ground	10 kΩ higher

7. Reconnect the center airbag sensor connector.
8. Reconnect the HV control ECU connector.

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : REPLACE CENTER AIRBAG SENSOR