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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Hybrid Control System - Diagnostic Codes (4 Of 5)) >> HYBRID CONTROL SYSTEM (for 1Motor-HEV Model) >> DTC P3000-00: Hybrid/EV Battery Discharge Control Malfunction [09/2023 - ] >> Procedure

DTC P3000-00: Hybrid/EV Battery Discharge Control Malfunction [09/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC OUTPUT (HYBRID CONTROL) 

    Pre-procedure1

    • None.
    • Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Result

      Result Proceed to
      Only P3000-00 or P3000-16 is output A
      P3000-00 or P3000-16 and other DTCs are output B

    Post-procedure1

    • Turn the ignition switch off.

    Result: 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2023 - ] 

    Result: 

    See step  2

  2. CHECK DTC OUTPUT (ENGINE) 

    Pre-procedure1

    • None.
    • Check for DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Post-procedure1

    • Turn the ignition switch off.

    Result: 

    GO TO DTC CHART (SFI SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2023 - ] 

    Result: 

    See step  3

  3. CHECK AMOUNT OF FUEL 

    Pre-procedure1

    • None.
    • Turn the ignition switch to ON.
    • Check the amount of fuel by referring to the fuel gauge in the meter.

      HINT: 

      Add fuel until the low fuel level warning light turns off.

      Result

      Result Proceed to
      Proper amount of fuel is in the tank. A
      There is no fuel in the tank. B

    Post-procedure1

    • Turn the ignition switch off.

    Result: 

    REFUEL VEHICLE 

    Result: 

    See step  4

  4. CHECK FREEZE FRAME DATA (HYBRID CONTROL) 

    Pre-procedure1

    • None.
    • Read the Freeze Frame Data item "Shift Position" of DTC P3000-00.

      Powertrain > Hybrid Control > DTC(P3000-00) > Freeze Frame Data 

      Tester Display
      Shift Position
      NOTE:
      • When the Freeze Frame Data "Shift Position" was N, DTC P3000-00 may be stored due to the vehicle was left with shift lever in N and the HV battery could not be charged.
      • If DTC "P3000-00" only is output, charge the HV battery without replacing the HV battery if necessary.

      Result

      Proceed to
      NEXT

    Post-procedure1

    • Turn the ignition switch off.

    Result: 

    NEXT 

    See step  5

  5. CHECK ENGINE START 

    Pre-procedure1

    • Turn the ignition switch to ON (READY).
    • Check if the engine starts.

      HINT: 

      • Depressing the accelerator pedal with shift lever in P will cause the engine to start.
      • Turning the ignition switch to ON (READY) and off repeatedly while the SOC is low may cause the SOC to drop further, resulting in DTC P3000-16 being stored. Charge the HV battery using the THS charger as necessary.
      • Cranking the engine once causes the SOC to drop approximately 1%.
      • Charging the HV battery once (10 minutes) using the THS charger restores the SOC approximately 2%.

      Result

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

    Post-procedure1

    • If the engine does not start, turn the ignition switch off.

    Result: 

    LEAVE VEHICLE WITH SHIFT LEVER IN P, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS 

    Result: 

    See step  6

  6. CLEAR DTC 

    Refer to PROCEDURE - Step 3

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    CHARGE HV BATTERY (CHECK THAT ENGINE STARTS). Refer to  CHARGING [09/2023 - ]