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 ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Disconnect connector A64 from the inverter with converter assembly.
3. Disconnect connector A66 from the hybrid vehicle control ECU.
4. Turn the ignition switch to ON.
5. Measure the voltage according to the value(s) in the table below.
   Fig 1: Checking Harness And Connector (Hybrid Vehicle Control ECU - Inverter With Converter)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A66-31 (HSDN) - Body ground	Ignition switch off	Below 1 V

   TEXT IN ILLUSTRATION
   
   

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

   NOTE:

   Turning the ignition switch to ON with the connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A66-31 (HSDN) - A64-40 (HSDN)	Ignition switch ON	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 ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Disconnect connector A64 from the inverter with converter assembly.
3. Measure the resistance according to the value(s) in the table below.
   Fig 2: Checking Inverter With Converter Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A64-40 (HSDN) - A64-30 (+B)	Ignition switch off	10 kΩ or higher
   A64-40 (HSDN) - A64-31 (+B2)	Ignition switch off	10 kΩ or higher
   A64-40 (HSDN) - Body ground	Ignition 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