Inspection Procedure

1. Disconnect the H15 and H16 HV control ECU connectors.
   Fig 1: Disconnecting H15 And H16 HV Control ECU Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the I11 A/C inverter connector.
3. Turn the power switch ON (IG).
4. Measure the voltage between the terminals of the HV control ECU connector and body ground.

   Standard voltage 

   TERMINALS VOLTAGE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   CLK (H16-17) - Body ground	Below 1 V
   ITE (H16-14) - Body ground	Below 1 V
   ETI (H15-24) - Body ground	Below 1 V
   STB (H15-25) - Body ground	Below 1 V

   Fig 2: Disconnecting I11 A/C Inverter Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Turn the power switch OFF.
6. Measure the resistance between the wire harness side connectors.

   Standard resistance (Check for open) 

   TERMINALS RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   CLK (H16-17) - CLK (I11-4)	Below 1 Ω
   ITE (H16-14) - TOECU (I11-2)	Below 1 Ω
   ETI (H15-24) - TOINV (I11-3)	Below 1 Ω
   STB (H15-25) - STB (I11-5)	Below 1 Ω

   Standard resistance (Check for short) 

   TERMINALS RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   CLK (H16-17) or CLK (I11-4) - Body ground	10 kΩ or higher
   ITE (H16-14) or TOECU (I11-2) - Body ground	10 kΩ or higher
   ETI (H15-24) or TOINV (I11-3) - Body ground	10 kΩ or higher
   STB (H15-25) or STB (I11-5) - Body ground	10 kΩ or higher

7. Reconnect the A/C inverter connector.
8. Reconnect the HV control ECU connectors.

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : REPLACE INVERTER WITH CONVERTER ASSEMBLY