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

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

DESCRIPTION

The hybrid vehicle transmission 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 transmission input malfunction (shaft damaged)

  • Engine

  • Hybrid vehicle transmission assembly

  • Wire harness or connector

  • Hybrid vehicle control ECU
P3147 241 Hybrid vehicle transmission input malfunction (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. Select the following menu items: Powertrain / Engine and ECT / 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

    B

    GO TO DTC CHART Click here

    A

  2. CHECK DTC OUTPUT (HV)


    1. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    2. 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

    B

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    C

    GO TO DTC CHART (P0A1D) Click here

    A

  3. 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. A
      The crankshaft does not rotate. B

    B

    CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION) Click here

    A

  4. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - CRANKSHAFT POSITION SENSOR)


    1. Disconnect connector E1 from the the ECM.

    2. Disconnect the crankshaft position sensor connector.

    3. A01H06UE16

      Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      E54-1 (NE+) - E1-27 (NE+) Power switch off Below 1 Ω
      E54-2 (NE-) - E1-34 (NE-) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      E54-1 (NE+) or E1-27 (NE+) - Body ground and other terminals Power switch off 10 kΩ or higher
      E54-2 (NE-) or E1-34 (NE-) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CLEAR DTC (HV)


    1. Turn the power switch on (IG).

    2. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

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

    4. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    5. Clear DTCs and freeze frame data.


    NEXT

  6. CHECK READY INDICATOR ON


    1. Select the following menu items: Powertrain / Hybrid Control / Data List / Generator (MG1) Rev, Engine Revolution.

    2. Turn the power switch on (READY).

      OK
      The READY indicator comes on.

      Tech Tips


      • If the READY indicator does not come on and the reading on the intelligent tester shows DTC P3147-239 (hybrid vehicle transmission input malfunction [shaft damaged]), or if the READY indicator comes on and MG1 turns but the engine does not crank, replace the hybrid vehicle transmission assembly.

      • A01H0Q9E01

        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 3000 rpm
        Approximately 1500 rpm Approximately 5000 rpm

    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  7. CHECK ENGINE RACING


    1. Select the following menu items: Powertrain / Hybrid Control / Data List / Generator (MG1) Rev, Engine

    2. Turn the power switch on (READY).

    3. While the READY indicator is on, fully depress the accelerator pedal for 10 seconds with the shift lever in the P position.

      OK
      The engine revs up.

      Tech Tips

      If the engine does not rev up and the reading on the intelligent tester shows DTC P3147-239 (hybrid vehicle transmission input malfunction [shaft damaged]), or if MG1 turns but the engine does not crank, replace the hybrid vehicle transmission assembly.


    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  8. 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 transmission assembly.


    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  9. CHECK ENGINE SPEED


    1. While driving at a vehicle speed of more than 10 km/h (6 mph), fully depress the accelerator pedal to raise the engine speed.

      Note

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

      OK
      Engine speed increases smoothly.

      Tech Tips

      If the engine over-revs or the reading on the intelligent tester shows DTC 3147-239 (hybrid vehicle transmission input malfunction [shaft damaged]), replace the hybrid vehicle transmission assembly.


    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  10. PERFORM SIMULATION TEST


    1. Perform step 3 and steps 6 through 9 again.

      OK
      The problem symptom is not reproduced.

    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

  11. CHECK 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.

      OK
      The crankshaft rotates.

    NG

    REPAIR OR REPLACE ENGINE

    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here