DTC P321E-318: All HV Gate Blocking Range/Performance [12/2014 - ]: Procedure
- CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR). Refer to PROCEDURE - Step 1
NG → CONNECT SECURELY
OK: Go to next step
- CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR). Refer to PROCEDURE - Step 3
NG → CONNECT SECURELY
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - HYBRID VEHICLE CONTROL ECU) WARNING:
Be sure to wear insulated gloves.
- 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 appropriate service information because this may cause a malfunction.
- Disconnect connector A47 from the inverter with converter assembly.
- Disconnect connector A39 from the hybrid vehicle control ECU.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition A47-31 (HSDN) or A39-12 (HSDN) - Body ground and other terminals Ignition switch off 10 kΩ or higher A47-31 (HSDN) - A39-12 (HSDN) Ignition switch off Below 1 Ω TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Inverter with Converter Assembly)*b Rear view of wire harness connector
(to Hybrid Vehicle Control ECU) - Connect the hybrid vehicle control ECU connector.
- Connect the inverter with converter assembly connector.
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- Check that the service plug grip is not installed.
- CHECK INVERTER WITH CONVERTER ASSEMBLY WARNING:
Be sure to wear insulated gloves.
- 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 appropriate service information because this may cause a malfunction.
- Disconnect connector A47 from the inverter with converter assembly.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition A47-31 (HSDN) - A47-28 (GND1) Ignition switch off 2.65 to 3.55 kΩ TEXT IN ILLUSTRATION*a Component without harness connected
(Inverter with Converter Assembly) - Connect the inverter with converter assembly connector.
NG → See step 6
OK → See step 5
- Check that the service plug grip is not installed.
- REPLACE HYBRID VEHICLE CONTROL ECU. Refer to COMPONENTS [12/2014 - ]
- REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to COMPONENTS [12/2014 - ]