HYBRID CONTROL SYSTEM, Diagnostic DTC:P3000-389

DTC Code DTC Name
P3000-389 HV Battery Malfunction

DESCRIPTION

The hybrid vehicle 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 HV 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 transmission 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 transmission assembly

  • HV battery

CAUTION / NOTICE / HINT

Tech Tips


  • If the vehicle is stopped or parked with the shift lever in the N position 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.

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
      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 transmission assembly, recharge the HV battery and then repair the malfunctioning part.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)


    1. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.

    2. Check if DTCs are output.

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

    B

    GO TO DTC CHART Click here

    A

  3. CHECK ENGINE START


    1. Turn the power switch on (READY).

    2. Check if the engine starts.

      Tech Tips

      Depressing the accelerator pedal with the shift lever in the P position will cause the engine to start.

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

      CAUTION:

      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.


    B

    LEAVE VEHICLE IN P POSITION, AND CHARGE HV BATTERY IN IDLE STATUS UNTIL IDLING STOPS

    A

  4. CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION)


    1. Turn the power switch off.

    2. Move the shift lever to the P position 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 off before performing this inspection to prevent the engine from starting.

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

    A

    REPLACE HV BATTERY ASSEMBLY Click here

    B

  5. CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION)


    1. Turn the power switch off.

    2. Move the shift lever to the N position 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 off before performing this inspection to prevent the engine from starting.

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

    B

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    A

  6. REPAIR OR REPLACE ENGINE


    NEXT

  7. REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY


    1. Replace the hybrid vehicle transmission assembly Click here.


    NEXT

  8. CHECK ENGINE START


    1. Turn the power switch on (READY).

    2. Check if the engine starts.

      Tech Tips

      Depressing the accelerator pedal with the shift lever in the P position will cause the engine to start.

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

      CAUTION:

      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.


    A

    REPLACE HV BATTERY ASSEMBLY Click here

    B

    LEAVE VEHICLE IN P POSITION, AND CHARGE HV BATTERY IN IDLE STATUS UNTIL IDLING STOPS