HYBRID CONTROL SYSTEM, Diagnostic DTC:P3147-239, P3147-241

DTC Code DTC Name
P3147-239 Transmission Malfunction
P3147-241 Transmission Malfunction

DESCRIPTION

DESCRIPTION The hybrid vehicle transaxle assembly consists of the power split planetary gear unit, MG1, MG2, and the 2-stage motor speed reduction planetary gear unit. The power split planetary gear unit uses a planetary gear to split engine output in accordance with driving requests while the vehicle is driven or the HV battery is charged. MG2 assists engine output while increasing vehicle drive force. MG2 also converts the energy, which would otherwise be consumed in the form of heat during normal braking, into electrical energy. This recovered energy is put back into the HV battery to perform regenerative braking. MG1 generates power, which is used for charging the HV battery or driving MG2, and also regulates the amount of electricity being generated. In addition, MG1 is used as a starter motor to start the engine.

DTC No. INF Code DTC Detection Condition Trouble Area
P3147 239 Hybrid vehicle transaxle input malfunction (shaft damaged)

  • Engine

  • Hybrid vehicle transaxle assembly

  • Wire harness or connector

  • Power management control ECU

  • Transmission input damper
P3147 241 Hybrid vehicle transaxle input malfunction l ECU (input system lock)

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)


    1. Connect the intelligent tester 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
      Engine control system DTCs are not output. A
      Engine control system DTCs are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester 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
      DTCs other than P3147-239 or P3147-241 are not output. A
      DTC P3147-240 or P3147-242 is also output. B
      DTC P0A1D is also output. C

    5. Turn the power switch off.


    B

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here

    C

    GO TO DTC CHART Click here

    A

  3. 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.

      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. A
      The crankshaft does not rotate. B

    B

    CRANKSHAFT PULLEY REVOLUTION (N POSITION) Click here

    A

  4. CLEAR DTC


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read and record the DTCs and freeze frame data.

    5. Clear DTCs and freeze frame data.

    6. Turn the power switch off.


    NEXT

  5. CHECK ENGINE RACING


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Move the shift lever to P.

    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Generator (MG1) Rev, Engine Revolution.

    5. Read the Data List.

    6. Turn the power switch on (READY).

    7. A01NDV7E01

      While the READY indicator is on, fully depress the accelerator pedal for 10 seconds.

      OK
      Generator (MG1) Rev increases to approximately 3.6 times that of Engine Revolution.

      Tech Tips

      Refer to the graph for Data List confirmation of "Generator (MG1) Rev" and " Engine Revolution".

      Data List ENGINE REV MG1 REV
      Reference Value Approximately 900 rpm Approximately 3200 rpm
      Approximately 1200 rpm Approximately 4300 rpm
      Approximately 1500 rpm Approximately 5400 rpm

    8. Turn the power switch off.


    NG

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here

    OK

  6. CHECK CREEP MOVEMENT


    1. Depress the brake pedal, move the shift lever to the D position, and release the brake pedal.

      OK
      The wheels turn (the vehicle creeps forward).

      Tech Tips

      If the wheels do not turn and the reading on the intelligent tester shows DTC P3147-239, replace the hybrid vehicle transaxle assembly.


    NG

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here

    OK

  7. CHECK ENGINE SPEED


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / Motor (MG2) Revolution, Generator (MG1) Rev, Engine Revolution.

    4. Read the Data List.

    5. Fully depress the accelerator pedal to accelerate the vehicle from a stop.

      Note

      Perform this test only in an appropriate safe location, in accordance with all local laws.

      OK
      The difference between Engine Revolution and 0.28 X Generator (MG1) Rev + 0.29 X Motor (MG2) Revolution is 500 rpm or more and it is maintained for 1 second.

    6. Turn the power switch off.


    NG

    REPLACE TRANSMISSION INPUT DAMPER ASSEMBLY Click here

    OK

  8. PERFORM SIMULATION TEST


    1. Perform step 3 and steps 5 through 7 again.

      Result
      Result Proceed to
      Problem symptom does not recur (for LHD). A
      Problem symptom does not recur (for RHD). B
      Problem symptom recurs. C

    B

    REPLACE POWER MANAGEMENT CONTROL ECU (for RHD) Click here

    C

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here

    A

    REPLACE POWER MANAGEMENT CONTROL ECU (for LHD) Click here

  9. CRANKSHAFT PULLEY REVOLUTION (N POSITION)


    1. Turn the power switch off and move the shift lever to the N position.

    2. 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.

      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.

      OK
      The crankshaft rotates.

    NG

    REPAIR OR REPLACE ENGINE

    OK

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here