HYBRID CONTROL SYSTEM, Diagnostic DTC:P3000-389

DTC Code DTC Name
P3000-389 Battery Control System

DESCRIPTION

The power management control ECU alerts the driver and performs fail-safe control based on error signals received from the battery smart unit.

This DTC is set if the HV battery is discharged excessively or the hybrid control system malfunctions.

Tech Tips

If the HV battery voltage has dropped due to a malfunction in other components such as the inverter with converter assembly or the hybrid vehicle transaxle assembly, recharging the HV battery will restore the voltage. If the HV battery voltage has dropped excessively after the vehicle was left for a long time, the HV battery will need to be replaced.

DTC No. INF Code DTC Detection Condition Trouble Area
P3000 389 HV battery voltage drops

  • Engine

  • Hybrid vehicle transaxle assembly

  • HV battery

CAUTION / NOTICE / HINT

CAUTION:


  • When disposing of an HV battery, make sure to return it through an authorized collection agent who is capable of handling it safely. If the HV battery is returned via the manufacturer specified route, it will be returned properly and in a safe manner by an authorized collection agent.

  • Before returning the HV battery, make sure to perform a recovery inspection Click here

  • Make a note of the output DTCs as some of them may be necessary for recovery inspection of the HV battery.

Tech Tips


  • If the vehicle is stopped or parked with the shift lever in N for a long time, DTC P3000-389 may be set because the HV battery cannot be charged.

  • When the engine cannot be started, DTC P3000-389 may be set because the HV battery cannot be charged.

  • If differences among SOCs of HV battery exceed the specifications, the hybrid system warning light may illuminate when "Battery Diagnosis" is complete. In this case, check for hybrid system related DTCs. If DTC P3000-389 is output, leave the vehicle with the power switch on (READY) for 10 minutes or more allowing the vehicle to charge the HV battery. Then clear the DTCs.

  • After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


    1. Turn the power switch on (READY) with park (P) selected.

    2. Wait until the engine starts and then stops.

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS 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
      DTC P3000-389 only is output, or DTC other than the one in the table below is also output. A
      Following DTC is also output. B
      DTC No. Relevant Diagnosis
      P31AB-123 Hybrid Battery Cell Low Voltage

      Tech Tips

      P3000-389 may be output due to a malfunction which causes the DTC in the table above to be output. In this case, first troubleshoot the output DTC in the table above. Then, perform a reproduction test to check that no DTCs are output.

    5. Turn the power switch off.


    B

    GO TO DTC CHART (P31AB-123) Click here

    A

  2. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS 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
      P3000-389 or P3000-388 only is output. A
      DTCs other than P3000-389 and P3000-388 are also output. B

      Tech Tips

      If the HV battery voltage has dropped due to a malfunction in other components such as the inverter with converter assembly or the hybrid vehicle transaxle assembly, recharge the HV battery and then repair the malfunctioning part.

    5. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    A

  3. CHECK DTC OUTPUT (ENGINE AND ECT)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      No DTCs are output. A
      DTCs are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART (SFI SYSTEM) Click here

    A

  4. CHECK ENGINE START


    1. Turn the power switch on (READY).

    2. Check if the engine starts.

      Note

      Do not turn the power switch on (READY) repeatedly after duplicating the problem symptom indicated by DTC P3000-389 and clearing the DTCs. This may cause another problem to occur.

      Tech Tips

      Depressing the accelerator pedal with park (P) selected will cause the engine to start.

      Result
      Result Proceed to
      The engine does not start. A
      The engine starts. B

    3. Turn the power switch off.


    B

    LEAVE VEHICLE WITH PARK (P) SELECTED, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS

    A

  5. CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION)


    1. Turn the power switch on (IG).

    2. Push the P position switch and lift up the vehicle.

    3. Turn the crankshaft pulley using hand tools to check if the crankshaft can rotate smoothly.

      CAUTION:

      Do not turn the power switch on (READY) while performing this inspection. Be sure to turn the power switch on (IG) before performing this inspection, to prevent the engine from starting.

      Note

      Engine compression causes resistance when turning the crankshaft pulley. Check if the crankshaft rotates smoothly (or if it is locked) by manually applying sufficient torque to turn the crankshaft pulley. The torque required to turn the crankshaft pulley should be the same as for a known good vehicle of the same type.

      Result
      Result Proceed to
      The crankshaft rotates smoothly. A
      The crankshaft does not rotate smoothly. B

    4. Lower the vehicle.


    B

    CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION) Click here

    A

  6. CHECK HV BATTERY


    1. Turn the power switch off.

    2. Wait 10 minutes or more.

    3. Connect the GTS to the DLC3.

    4. Turn the power switch on (IG).

    5. Enter the following menus: Powertrain / Hybrid Control / Data List / Battery Block Vol -V01 to V08.

    6. Read the Data List.

      Result
      Result Proceed to
      One or more battery block voltages are less than16.1 V. A
      All battery block voltages are 16.1 V or more. B

    7. Turn the power switch off.


    A

    REPLACE HV BATTERY Click here

    B

    CHARGE HV BATTERY (ABOUT 10 MINUTES) Click here

  7. CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION)


    1. Turn the power switch on (IG).

    2. Move the shift lever to N and lift up the vehicle.

    3. Turn the crankshaft pulley using hand tools to check if the crankshaft can rotate smoothly.

      CAUTION:

      Do not turn the power switch on (READY) while performing this inspection. Be sure to turn the power switch on (IG) before performing this inspection, to prevent the engine from starting.

      Note

      Engine compression causes resistance when turning the crankshaft pulley. Check if the crankshaft rotates smoothly (or if it is locked) by manually applying sufficient torque to turn the crankshaft pulley. The torque required to turn the crankshaft pulley should be the same as for a known good vehicle of the same type.

      Result
      Result Proceed to
      The crankshaft does not rotate smoothly. A
      The crankshaft rotates smoothly. B

    4. Lower the vehicle.


    B

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here

    A

  8. REPAIR OR REPLACE ENGINE


    1. Repair or replace the engine.


    NEXT

  9. CHECK ENGINE START


    1. Turn the power switch on (READY).

    2. Check if the engine starts.

      Note

      Do not turn the power switch on (READY) repeatedly after duplicating the problem symptom indicated by DTC P3000-389 and clearing the DTCs. This may cause another problem to occur.

      Tech Tips

      Depressing the accelerator pedal with park (P) selected will cause the engine to start.

      Result
      Result Proceed to
      The engine does not start. A
      The engine starts. B

    3. Turn the power switch off.


    B

    LEAVE VEHICLE WITH PARK (P) SELECTED, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS

    A

  10. CHECK HV BATTERY


    1. Turn the power switch off.

    2. Wait 10 minutes or more.

    3. Turn the power switch on (IG).

    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Battery Block Vol -V01 to V08.

    5. Read the Data List.

      Result
      Result Proceed to
      One or more battery block voltages are less than 16.1 V. A
      All battery block voltages are 16.1 V or more. B

    6. Turn the power switch off.


    A

    REPLACE HV BATTERY Click here

    B

    CHARGE HV BATTERY (ABOUT 10 MINUTES) Click here

  11. REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

    Click here


    NEXT

  12. CHECK ENGINE START


    1. Turn the power switch on (READY).

    2. Check if the engine starts.

      Note

      Do not turn the power switch on (READY) repeatedly after duplicating the problem symptom indicated by DTC P3000-389 and clearing the DTCs. This may cause another problem to occur.

      Tech Tips

      Depressing the accelerator pedal with park (P) selected will cause the engine to start.

      Result
      Result Proceed to
      The engine does not start. A
      The engine starts. B

    3. Turn the power switch off.


    B

    LEAVE VEHICLE WITH PARK (P) SELECTED, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS

    A

  13. CHECK HV BATTERY


    1. Turn the power switch off.

    2. Wait 10 minutes or more.

    3. Turn the power switch on (IG).

    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Battery Block Vol -V01 to V08.

    5. Read the Data List.

      Result
      Result Proceed to
      One or more battery block voltages are less than 16.1 V. A
      All battery block voltages are 16.1 V or more. B

    6. Turn the power switch off.


    A

    REPLACE HV BATTERY Click here

    B

    CHARGE HV BATTERY (ABOUT 10 MINUTES) Click here