HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A72-326, P0A72-328, P0A72-333, P0A72-515, P0A75-334, P0A75-336, P0A75-341, P0A75-516

DTC Code DTC Name
P0A72-326 Generator Phase V Current
P0A72-328 Generator Phase V Current
P0A72-333 Generator Phase V Current
P0A72-515 Generator Phase V Current
P0A75-334 Generator Phase W Current
P0A75-336 Generator Phase W Current
P0A75-341 Generator Phase W Current
P0A75-516 Generator Phase W Current

DESCRIPTION

The MG ECU located in the inverter with converter assembly monitors the generator inverter current sensors. P0A72 and P0A75 indicate malfunctions in the current sensors, and they do not indicate malfunctions in the high-voltage system.

DTC No. INF Code DTC Detection Condition Trouble Area
P0A72 326 Malfunction in generator inverter current sensor (phase V sub sensor) Inverter with converter assembly
P0A72 328 Malfunction in generator inverter current sensor (phase V main sensor)
P0A72 333 Malfunction in generator inverter current sensor (performance problem or open phase V)
P0A72 515 Malfunction in generator inverter current sensor (phase V main and sub sensors offset)
P0A75 334 Malfunction in generator inverter current sensor (phase W sub sensor)
P0A75 336 Malfunction in generator inverter current sensor (phase W main sensor)
P0A75 341 Malfunction in generator inverter current sensor (performance problem or open phase W)
P0A75 516 Malfunction in generator inverter current sensor (phase W main and sub sensors offset)

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      P0A72 or P0A75 only is output. A
      P0A7A-203 is output. B
    5. Turn the power switch off.


    B
    A
  2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)

    CAUTION:

    Be sure to wear insulated gloves.


    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 manual because this may cause a malfunction.

      Note

      Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector does not pull out.

      A01NHWR
    2. Check the connection of the low voltage connector of the inverter with converter assembly.

      OK
      The connector is connected securely and there are no contact problems.

      Tech Tips

      When connecting the connector, insert it with the locking lever in the raised position. Rotate the lever downward and make sure that the connector is pulled into its socket. When the locking lever is in its fully closed position, a click will be heard as its locking claws engage. After the click is heard, pull up on the connector to confirm that it is properly connected.


    NG
    OK