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Home >> Lexus >> 2010 >> HS 250h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control (Diagnostic Codes (P0AA6-526 - U0424-537) & Circuit Tests) >> Hybrid Control System >> DTC P3000-389: HV Battery Malfunction >> Procedure

DTC P3000-389: HV Battery Malfunction: Procedure

  1. CHECK DTC OUTPUT (HV) 
    1. Connect the Techstream 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

      HINT: 

      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 → See step   11 

    A: Go to next step 

  2. CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM) 
    1. Connect the Techstream 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
      No DTCs are output. A
      DTCs are output. B
    5. Turn the power switch off.

    B → See step   13 

    A: Go to next step 

  3. 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.

      HINT: 

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

    A: Go to next step 

  4. CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION) 
    1. Push the P position switch (transmission shift main switch) and lift up the vehicle.
    2. Turn the crankshaft pulley using hand tools to check if the crankshaft can rotate smoothly.
      WARNING:

      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.

      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

    B → See step   6 

    A: Go to next step 

  5. CHECK HV BATTERY ASSEMBLY 
    1. Turn the power switch off.
    2. Wait 10 minutes or more.
    3. Connect the Techstream 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 17.
    6. Read the Data List.

      Result

      Result Proceed to
      One or more battery block voltages are below 12.0 V. A
      All battery block voltages are 12.0 V or more. B
    7. Turn the power switch off.

    B → CHARGE HV BATTERY ASSEMBLY 

    A → See step   12 

  6. 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.
      WARNING:

      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

    B → See step   8 

    A: Go to next step 

  7. REPAIR OR REPLACE ENGINE 

    NEXT → See step   9 

  8. REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 
    1. Replace the hybrid vehicle transaxle assembly. Refer toCOMPONENTS .

    NEXT: Go to next step 

  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.

      HINT: 

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

    A: Go to next step 

  10. CHECK HV BATTERY ASSEMBLY 
    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 17.
    5. Read the Data List.

      Result

      Result Proceed to
      One or more battery block voltages are below 12.0 V. A
      All battery block voltages are 12.0 V or more. B
    6. Turn the power switch off.

    B → CHARGE HV BATTERY ASSEMBLY 

    A → See step   14 

  11. GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART 
  12. REPLACE HV BATTERY ASSEMBLY. Refer to COMPONENTS 
  13. GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART 
  14. REPLACE HV BATTERY ASSEMBLY. Refer to COMPONENTS