HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A92-261

DTC Code DTC Name
P0A92-261 Hybrid Generator Performance

DESCRIPTION

For a description of MG1, Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P0A92 261 Generator magnetic force deterioration or same phase short circuit

  • Hybrid vehicle transmission assembly

  • Inverter with converter assembly

INSPECTION PROCEDURE

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.

Tech Tips

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      P0A92-261 only is output. A
      Any of the following DTCs are also output. B
      DTC No. Relevant Diagnosis
      P0A1A (all INF codes) *1 Generator Control Module
      P0A1B (all INF codes) *1 Drive Motor "A" Control Module
      P0A1D (all INF codes) *1 Hybrid Powertrain Control Module
      P0A3F-243 Drive Motor "A" Position Sensor Circuit
      P0A40-500 Drive Motor "A" Position Sensor Circuit Range / Performance
      P0A41-245 Drive Motor "A" Position Sensor Circuit Low
      P0A4B-253 Generator Position Sensor Circuit
      P0A4C-513 Generator Position Sensor Circuit Range / Performance
      P0A4D-255 Generator Position Sensor Circuit Low
      P0A60 (all INF codes) *1 Drive Motor "A" Phase V Current
      P0A63 (all INF codes) *1 Drive Motor "A" Phase W Current
      P0A72 (all INF codes) *1 Generator Phase V Current
      P0A75 (all INF codes) *1 Generator Phase W Current
      P0A78-266, 267, 306, 586 Drive Motor "A" Inverter Performance
      P0A7A-344 Generator Inverter Performance
      P0A90-509 Drive Motor "A" Performance
      P0A92-521 Hybrid Generator Performance
      P0A94-585, 587, 589, 590 DC / DC Converter Performance
      P0AA6 (all INF codes) *1 Hybrid Battery Voltage System Isolation Fault
      P0C76-523 Hybrid Battery System Discharge Time Too Long
      P3004-132 Power Cable Malfunction
      P3233-750 Short to B+ in Blocking of HV Gate Connection

      Tech Tips


      • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic flowchart.

      • P0A92-261 may be set due to a malfunction which also causes DTCs in the preceding table to be set. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.


    B

    GO TO DTC CHART Click here

    A

  2. SIMULATION TEST


    1. Leave the vehicle for 1 minute with the engine on (with MG1 rotating).

      Tech Tips

      If the accelerator pedal is depressed with the shift lever in the P position, the engine will start.

    2. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    3. Check if DTCs are output.

      Result
      Result Proceed to
      P0A92-261 is output or no DTC is output. A
      P0A7A-344 or P0A92-521 is output. B

    B

    GO TO DTC CHART Click here

    A

  3. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)


    1. Remove the service plug grip. Click here

      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.

      • Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector cannot be pulled out.

    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

    CONNECT SECURELY

    OK

  4. CHECK INVERTER WITH CONVERTER ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION)

    CAUTION:

    Be sure to wear insulated gloves.


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

    2. Remove the inverter terminal cover from the inverter with converter assembly.


      • For LHD vehicles, use the following procedures Click here.

      • For RHD vehicles, use the following procedures Click here.

      Note

      Lift the inverter terminal cover horizontally so that it does not tilt. Failure to do so may break the inverter cover guide pins.

      A01H1SOE01

    3. Check that the bolts for the generator cable are tightened to the specified torque, the generator cable is connected securely, and there are no contact problems.

      A01H0UWE01
      Specified Condition
      T=8.0 N*m {82 kgf*cm, 71 in.*lbf}

      Note

      Make sure that the tightening torque of the bolts is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).

    4. Check for arc marks at the bolts for the generator cable.

      Result
      Result Proceed to
      The terminals are connected securely and there are no contact problems. There are no arc marks. A
      The terminals are not connected securely and there is a contact problem. There are arc marks. B
      The terminals are not connected securely and there is a contact problem. There are no arc marks. C
      The terminals are connected securely and there are no contact problems. There are arc marks. B

    B

    REPLACE MALFUNCTIONING PARTS

    C

    CONNECT SECURELY

    A

  5. CHECK HYBRID VEHICLE TRANSMISSION ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION)


    1. A01H0G5

      Remove the hybrid vehicle transmission assembly Click here.

    2. Check that the bolts for the generator cable are tightened to the specified torque, the generator cable is connected securely, and there are no contact problems.

      Specified Condition
      T=8.0 N*m {82 kgf*cm, 71 in.*lbf}

      Note

      Make sure that the tightening torque of the bolts is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).

    3. Check for arc marks at the bolts for the generator cable.

      Result
      Result Proceed to
      The terminals are connected securely and there are no contact problems. There are no arc marks. A
      The terminals are not connected securely and there is a contact problem. There are arc marks. B
      The terminals are not connected securely and there is a contact problem. There are no arc marks. C
      The terminals are connected securely and there are no contact problems. There are arc marks. B

    B

    REPLACE MALFUNCTIONING PARTS

    C

    CONNECT SECURELY

    A

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here