DTC P3233-750: 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 service information because this may cause a malfunction.

2. Disconnect the low voltage connector A59 from the inverter with converter assembly.
3. Disconnect connector A58 from the hybrid vehicle control ECU.
4. Turn the power switch on (IG).
5. Measure the voltage according to the value(s) in the table below.
   Fig 1: Identifying A58 Hybrid Vehicle Control ECU & A59 Inverter With Converter Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Hybrid Vehicle Control ECU)
   *2	Front view of wire harness connector (to Inverter with Converter Assembly)

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A59-12 (HSDN) - Body ground	Power switch on (IG)	Below 1 V

   NOTE:

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

6. Turn the power switch off.
7. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A58-76 (HSDN) - A59-12 (HSDN)	Power switch off	Below 1 Ω

8. Connect the inverter with converter assembly connector.
9. Connect the hybrid vehicle 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 service information because this may cause a malfunction.

2. Disconnect the low voltage connector A59 from the inverter with converter assembly.
3. Measure the resistance according to the value(s) in the table below.
   Fig 2: Identifying A59 Inverter With Converter Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connector (Inverter with Converter Assembly)

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A59-12 (HSDN) - A59-31 (+B)	Power switch off	10 kΩ or more
   A59-12 (HSDN) - A59-30 (+B2)	Power switch off	10 kΩ or more
   A59-12 (HSDN) - Body ground	Power switch off	2.65 to 3.55 kΩ

4. Connect the inverter with converter assembly connector.

NG → See step   4 

OK → See step   3