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

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

DESCRIPTION

The hybrid vehicle transmission assembly consists of the planetary gear unit, generator (MG1) and motor (MG2). The planetary gear unit uses a planetary gear to split the engine output into mechanical power and electrical power in accordance with driving requests when the vehicle is being driven or the HV battery is being charged. When accelerating, motor (MG2) assists engine output by increasing vehicle driving force. Motor (MG2) also converts braking energy, which would otherwise be consumed in the form of heat during braking, into electrical energy. This recovered energy is stored in the HV battery. Generator (MG1) supplies power, which is used for charging the HV battery or driving motor (MG2), and also regulates the amount of electricity being generated. In addition, generator (MG1) is used as a starter motor to start the engine.

DTC No. DTC Detection Condition Trouble Area
P3147-239

Drive force from motor (MG2) or the engine cannot be transmitted to the wheels.

The engine, generator (MG1), motor (MG2) or hybrid vehicle transmission assembly does not run smoothly due to a mechanical malfunction.

(1 trip detection logic)

  • Engine

  • Hybrid vehicle transmission assembly

  • Wire harness or connector

  • Power management control ECU

  • Transmission input damper assembly
P3147-241

Hybrid vehicle transmission malfunction (input system lock) When the vehicle is stopped, an engine cranking signal is sent but the generator (MG1) does not rotate.

Generator (MG1) or the engine does not rotate, or the planetary gear unit is malfunctioning.

(1 trip detection logic)
Related Data List
DTC No. Data List
P3147-239

  • Motor(MG2) Revolution

  • Motor(MG2) Torq

  • M(MG2) Trq Exec Val

  • Generator(MG1) Rev

  • Generator(MG1) Torq

  • G(MG1) Trq Exec Val

  • Engine Revolution

  • Calculate Load
P3147-241

CAUTION / NOTICE / HINT

Tech Tips


  • If DTC P3147-239 is output, clear the DTCs, perform the following procedure, and check that the same DTC is not output after the repair.


    1. Drive the vehicle at approximately 30 km/h (19 mph) or more for approximately 5 seconds or more using the engine.

  • If DTC P3147-241 is output, clear the DTCs, perform the following procedure, and check that the same DTC is not output after the repair.


    1. With the vehicle stopped and the shift lever in P, turn the power switch on (READY) and gradually depress the accelerator pedal so that the engine starts.

PROCEDURE


  1. CHECK DTC OUTPUT (ENGINE AND ECT)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    4. Check for DTCs.

      Result
      Result Proceed to
      Only DTC P0335 is output or SFI system DTCs are not output. A
      DTC P0335 and other SFI system DTCs are output or any SFI system DTCs other than P0335 are output. (for SFI System (w/ EGR System)) B
      DTC P0335 and other SFI system DTCs are output or any SFI system DTCs other than P0335 are output. (for SFI System (w/o EGR System) C

    5. Turn the power switch off.


    B

    GO TO DTC CHART (for SFI System (w/ EGR System)) Click here

    C

    GO TO DTC CHART (for SFI System (w/o EGR System)) Click here

    A

  2. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Check for DTCs.

      Result
      Result Proceed to
      DTCs other than P3147-239 and P3147-241 are not output. A
      P3147-240 or P3147-242 is also output. B
      P0A1D is also output. C

    5. Turn the power switch off.


    B

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    C

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    A

  3. CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION)


    1. Check that the shift lever is in P.

    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 smoothly.

    4. Lower the vehicle.


    B

    CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION) Click here

    A

  4. CLEAR DTC


    1. Connect the GTS 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. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

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

    7. Clear the DTCs and freeze frame data.

    8. Turn the power switch off.


    NEXT

  5. CHECK ENGINE RACING


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

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

    4. Read the Data List.

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

      OK
      The engine races

      Tech Tips


      • If the engine does not race and DTC P3147-239 (Transmission system) is output or generator (MG1) operates but the engine does not crank, replace the hybrid vehicle transmission assembly.

      • A000R5KE06

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

        Data List Engine Speed Generator (MG1) Rev
        Reference Value Approximately 900 rpm Approximately 3200 rpm
        Approximately 1500 rpm Approximately 5400 rpm

    6. Turn the power switch off.


    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  6. CHECK CREEP MOVEMENT


    1. Turn the power switch on (READY).

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

      OK
      The wheels turn (the vehicle creeps forward).

      Tech Tips

      If the wheels do not turn and DTC P3147-239 is output, replace the hybrid vehicle transmission assembly.

    3. Turn the power switch off.


    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  7. INSPECT ENGINE SPEED


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

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

    4. Read the Data List.

    5. Move the shift lever to D.

    6. Fully depress the accelerator pedal when the vehicle speed is 10 km/h (6 mph) or more.

      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 + 0.22 X Motor (MG2) Revolution" is 500 rpm or more and it is maintained for 1 second.

    7. Turn the power switch off.


    OK

    REPLACE POWER MANAGEMENT CONTROL ECU

    NG

    REPLACE TRANSMISSION INPUT DAMPER ASSEMBLY Click here

  8. CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION)


    1. Turn the power switch on (IG) and move the shift lever to N.

    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 smoothly

    4. Lower the vehicle.


    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    NG

    REPAIR OR REPLACE ENGINE