DTC P3233-750: Open or Short to B+ in Blocking of HV Gate Connection: Procedure

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair information because this may cause a malfunction.

2. Disconnect connector A59 from the inverter with converter assembly.
3. Disconnect connector A22 from the power management control ECU.
4. Connect the cable to the negative (-) auxiliary battery terminal.
5. Turn the power switch on (IG).
6. Measure the voltage according to the value(s) in the table below.
   Fig 1: Checking Harness And Connector (Power Management Control ECU - Inverter With Converter)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A22-31 (HSDN) - Body ground	Power switch on (IG)	Below 1 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Inverter with Converter Assembly)
   *b	Rear view of wire harness connector (to Power Management Control ECU)

   NOTE:

   Turning the power switch on (IG) with the connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

7. Disconnect the cable from the negative (-) auxiliary battery terminal.
8. Turn the power switch off.
9. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A22-31 (HSDN) - A59-31 (HSDN)	Power switch off	Below 1 Ω

10. Connect the inverter with converter assembly connector.
11. Connect the power management control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair information because this may cause a malfunction.

2. Disconnect connector A59 from the inverter with converter assembly.
3. Measure the resistance according to the value(s) in the table below.
   Fig 2: Measuring Resistance Of Inverter With Converter Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A59-31 (HSDN) - A59-10 (+B)	Power switch off	80 Ω or higher
   A59-31 (HSDN) - A59-9 (+B2)	Power switch off	80 Ω or higher
   A59-31 (HSDN) - A59-28 (GND1)	Power switch off	2.65 to 3.55 kΩ

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Inverter with Converter Assembly)

4. Connect the inverter with converter assembly connector.

NG → See step   4 

OK → See step   3