MOTOR GENERATOR CONTROL COMPUTER REASSEMBLY

CAUTION / NOTICE / HINT

Note

Do not cross-thread the bolts when installing them.

PROCEDURE


  1. REMOVE SEAL PACKING (FROM HYBRID CONVERTER KIT CONTACT SURFACE)

    Note


    • Do not touch the circuit board.

    • Only remove seal packing which is uneven, has peeled off or seeped out from between the contact surfaces.

    • Do not drop any removed seal packing into the hybrid vehicle converter kit.

    • Do not bend the bus-bars.


    1. B0040XBE03
      Text in Illustration
      *1 Paper

      Put clean pieces of paper into the areas shown in the illustration to prevent any remaining seal packing from entering the hybrid vehicle converter kit.

    2. Using a finger or a scraper with its tip wrapped with protective tape, remove any remaining seal packing which is uneven, has peeled off or seeped out from around the contact surface shown in the illustration and inside the bolt holes.

      B0040YIE03
      Text in Illustration
      *1 Paper *2 Seeped Out or Uneven Seal Packing
      *3 Light Coat of Seal Packing Remaining on Contact Surface - -
      *a Minimum Requirement for Removal of Seal Packing - -

      Note

      Do not allow any moisture to come into contact with the circuit board.

  2. REMOVE SEAL PACKING (FROM INVERTER CASE WITH CONDENSER CONTACT SURFACE)

    Note


    • Only remove seal packing which is uneven, has peeled off or seeped out from between the contact surfaces.

    • Do not drop any removed seal packing into the inverter case with condenser.

    • Do not bend the bus-bars.


    1. Set the inverter case with condenser on its side as shown in the illustration.

      Note

      To prevent the inverter case with condenser from falling over, hold it by hand or place an object behind it.

    2. Using a finger or a scraper with its tip wrapped with protective tape, remove any remaining seal packing which is uneven, has peeled off or seeped out from around the contact surface shown in the illustration and inside the bolt holes.

      B0040ZKE06
      Text in Illustration
      *1 Seeped Out or Uneven Seal Packing *2 Light Coat of Seal Packing Remaining on Contact Surface
      *a Minimum Requirement for Removal of Seal Packing - -

  3. REMOVE ADHESIVE (FROM NO. 1 AND NO. 2 INVERTER DRAIN PLUGS SEALING SURFACE)


    1. B00413WE04
      Text in Illustration
      *1 Protective Tape

      Remove the protective tape from the installation holes of the No. 1 and No. 2 inverter drain plugs.

    2. B004130E03
      Text in Illustration
      *1 Protective Tape

      Apply protective tape to the installation holes of the No. 1 and No. 2 inverter drain plugs from the inside of the inverter case with condenser.

      Note

      Do not bend the bus-bars when applying protective tape.

    3. Using a scraper with its tip wrapped with protective tape, remove any remaining adhesive from the sealing surfaces of the No. 1 and No. 2 inverter drain plugs.

      B0040YRE01
      Text in Illustration
      *a Sealing Surface - -

      Note

      Do not damage the sealing surfaces.

    4. Remove any adhesive shavings using tape or equivalent.

    5. Remove the protective tape from the inside of the inverter case with condenser.

    6. B00413WE04
      Text in Illustration
      *1 Protective Tape

      Apply protective tape to the installation holes of the No. 1 and No. 2 inverter drain plugs as shown in the illustration.

  4. REMOVE RESIDUE (FROM INVERTER SIGNAL CONNECTOR COVER SEALING SURFACE)


    1. B00411EE01
      Text in Illustration
      *1 Protective Tape

      Apply protective tape to the area shown in the illustration to prevent removed residue from entering the inverter case with condenser.

    2. B00413T

      Using 600-grit sandpaper, remove the residue from each grommet sealing surface until it feels smooth.

      Note


      • Use 600-grit or higher sandpaper.

      • Do not allow removed residue to enter the inverter case with condense.

      • Do not touch or allow grease or oil to contact the sealing surfaces of the inverter case with condenser.

    3. Remove any residue particles using tape or equivalent.

    4. Remove the protective tape.

    5. Thoroughly wash your hands after performing this step.

      Tech Tips

      It is not necessary to perform this step if performing the "Remove Residue (from Grommet Sealing Surface)" procedure next.

  5. REMOVE RESIDUE (FROM GROMMET SEALING SURFACE)

    Tech Tips

    Perform the following procedure only when there is residue on the grommet sealing surfaces:


    1. Apply protective tape to the areas shown in the illustration to prevent removed residue from entering the inverter case with condenser and hybrid vehicle converter kit.

      B0040ZZE01
      Text in Illustration
      *1 Inverter Case with Condenser *2 Hybrid Vehicle Converter Kit
      *3 Power Module Intelligent Transistor Kit 4 Protective Tape

    2. Using 600-grit sandpaper, remove the residue from each grommet sealing surface until it feels smooth.

      B0040Y2E01
      Text in Illustration
      *a Residue - -

      Note


      • Use 600-grit or higher sandpaper.

      • Do not allow removed residue to enter the inverter case with condenser or hybrid vehicle converter kit

    3. Remove any adhesive shavings particles using tape or equivalent.

    4. Remove the protective tape.

    5. Thoroughly wash your hands after performing this step.

  6. CLEAN INVERTER SIGNAL CONNECTOR COVER


    1. B0040WDE01
      Text in Illustration
      *1 Gasket

      Remove the gasket from the inverter signal connector cover. Wash the gasket and inverter signal connector cover with water and dry them completely.

      Note

      Do not damage the gasket.

    2. Thoroughly wash your hands after performing this step.

  7. INSTALL MG CONTROL COMPUTER WITH BRACKET SUB-ASSEMBLY

    Note


    • Do not touch the circuit board.

    • Do not allow any moisture to come into contact with the circuit board.


    1. Align the guide pins of the MG control computer with bracket sub-assembly with the holes of the hybrid vehicle converter kit and temporarily install the MG control computer with bracket sub-assembly to the hybrid vehicle converter kit.

      B00411NE02
      Text in Illustration
      *1 Guide Pins - -

      Note

      Make sure to align the guide pins correctly.

    2. Install the MG control computer with bracket sub-assembly with the 4 bolts.

    3. B00415TE03

      Temporarily tighten the 4 bolts evenly in several steps in the order shown in the illustration, then fully tighten them.

      Torque:
      4.5 N*m  { 46 kgf*cm, 40 in.*lbf }

    4. Engage the 2 wire harnesses to the 4 clamps.

      B0040WZ
    5. B0040XY

      Connect the connector.

    6. B004156

      Connect the 2 connectors.

    7. B00415N

      Disengage the lock claws of the white resin connector and connect the flat cable to the power module intelligent transistor kit.

    8. Check that the flat cable is connected securely.

      Note

      If the flat cable is not fully connected, connect it securely.

      B0040WP
    9. B0040Y7E01
      Text in Illustration
      *1 Gasket

      If the gasket of the inverter signal connector is protruding, fully push it in.

  8. INSTALL INVERTER TERMINAL WITH SENSOR SUB-ASSEMBLY

    Note


    • Do not touch the circuit board.

    • Do not allow any moisture to come into contact with the circuit board.


    1. Align the guide pins of the inverter terminal with sensor sub-assembly with the holes of the hybrid vehicle converter kit and temporarily install the inverter terminal with sensor sub-assembly to the hybrid vehicle converter kit.

      B00413YE02
      Text in Illustration
      *1 Guide Pins - -

      Note

      Make sure to align the guide pins correctly.

    2. Install the inverter terminal with sensor sub-assembly with the 4 bolts.

    3. B00412IE01

      Temporarily tighten the 4 bolts evenly in several steps in the order shown in the illustration, then fully tighten them.

      Torque:
      4.5 N*m  { 46 kgf*cm, 40 in.*lbf }
    4. B00415D

      Connect the 3 connectors.

    5. B00413H

      Check that the 6 connectors and flat cable are connected securely as shown in the illustration.

    6. Check the installation condition of the pen sheet.

      Note


      • Do not touch the circuit board.

      • Do not allow any moisture to come into contact with the circuit board.


      1. While ensuring that the pen sheet does not interfere with components of the circuit board, insert the pen sheet between the inverter terminal with sensor sub-assembly and MG control computer with bracket sub-assembly.

        B0040ZOE01
        Text in Illustration
        *1 Pen Sheet - -
      2. B0040XME03
        Text in Illustration
        *1 Guide Pin
        *2 Double-sided Tape
        *3 Pen Sheet

        Set the pen sheet so that the guide hole is aligned with the pin of the MG control computer sub-assembly as shown in the illustration.

      3. Attach the double-sided tape of the pen sheet to the connector as shown in the illustration.

    7. B00413QE01

      Install the 6 bolts.

      Torque:
      6.0 N*m  { 61 kgf*cm, 53 in.*lbf }

      Note

      Do not touch the bus-bars.

    8. B00414JE01
      Text in Illustration
      *1 SST

      If the No. 2 engine room wire is installed, install the bolt (A) using SST as shown in the illustration.

      SST
      09961-00950
      Torque:
      without SST
      6.0 N*m  { 61 kgf*cm, 53 in.*lbf }
      with SST
      3.3 N*m  { 34 kgf*cm, 29 in.*lbf }

      Note

      This torque value is effective when SST is parallel to the torque wrench.

  9. INSTALL INVERTER CASE WITH CONDENSER

    Note


    • Do not touch the circuit board.

    • Do not allow any moisture to come into contact with the circuit board.

    • Do not touch or allow grease or oil to contact the sealing surfaces of the hybrid vehicle converter kit and inverter case with condenser.


    1. Apply seal packing (diameter: 2.0 to 3.0 mm (0.0787 to 0.118 in.)) in a continuous line to the locations shown in the illustration.

      B0040XPE03
      Text in Illustration
      *1 Seal Packing *2 Bolt Hole
      *3 Coolant Pipes - -
      *a 2.0 to 3.0 mm (0.0787 to 0.118 in.) *b 2.0 to 3.0 mm (0.0787 to 0.118 in.)
      *c Around Coolant Pipe - -
      Seal Packing
      Toyota Genuine Seal Packing 1282B, Three Bond 1282B or equivalent

      Note


      • Install the inverter case with condenser within 3 minutes of applying seal packing.

      • Tighten the bolts within 15 minutes of applying seal packing.

      • Keep the coolant pipes free from seal packing.

    2. Install the inverter case with condenser.


      1. B004118E03
        Text in Illustration
        *1 Protective Tape

        Peel back the protective tape to the extent that the following steps can be performed.

        Note

        Do not touch or allow grease or oil to contact the sealing surfaces of the inverter case with condenser.

      2. Align the holes of the inverter case with condenser with the guide pins of the hybrid vehicle converter kit so that the bus-bar (A) does not contact the protrusion of the inverter terminal with sensor sub-assembly (B).

        B0040VZE02
        Text in Illustration
        *1 Guide Pins - -

        Note


        • Make sure to align the guide pins correctly.

        • B004165

          Check that the bus-bars of the hybrid vehicle converter kit overlap the bus-bars of the inverter case with condenser.

        • B0040UBE02

          Make sure that the bus-bar (A) is not resting on the resin part of the inverter terminal with sensor sub-assembly as shown in the illustration.

        Text in Illustration
        *1 Bus-bar (A)
    3. B00416M

      Temporarily install the inverter case with condenser with the 11 bolts.

      Torque:
      4.0 N*m  { 41 kgf*cm, 35 in.*lbf }

    4. Fully tighten the 11 bolts.

      Torque:
      9.2 N*m  { 94 kgf*cm, 81 in.*lbf }
    5. B00413J

      Install the 5 bolts.

      Torque:
      6.0 N*m  { 61 kgf*cm, 53 in.*lbf }

      Note

      Do not touch the bus-bars.

    6. B004107

      Install the No. 2 engine room wire to the inverter with converter assembly with the nut.

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }

      Note

      Check that the nut is not cross-threaded and the terminal is not loose.

    7. B00410U

      Close the terminal cover and engage the 2 claws.

  10. INSTALL INVERTER UNION GROMMET


    1. B00416BE01
      Text in Illustration
      *1 Seal Packing

      Apply a light coat of seal packing to 2 new inverter union grommets.

      Seal Packing
      Toyota Genuine Seal Packing 1282B, Three Bond 1282B or equivalent

      Note


      • Install the inverter union grommets within 60 minutes of installing the inverter case with condenser.

      • Apply a light coat of seal packing to the entire surface of the area shown in the illustration. If seal packing is applied excessively, it may seep out, however, sealing quality will not be affected.

      • Install the inverter union grommets within 3 minutes of applying seal packing.

    2. B0040W9E04
      Text in Illustration
      *1 Coolant Pipe
      *2 Inverter Union Grommet
      *a Flange

      Push in the inverter union grommet until it passes over the flange of the coolant pipe.

      Note

      Do not damage the coolant pipes.

    3. B00413GE01
      Text in Illustration
      *1 30 mm Socket

      Using a 30 mm socket, install the inverter union grommet.

    4. Perform the same procedure to install the other inverter union grommet.

  11. INSTALL NO. 1 AND NO. 2 INVERTER DRAIN PLUGS

    Note

    Do not touch or allow grease or oil to contact the sealing surfaces of the inverter case with condenser.


    1. B00410BE04
      Text in Illustration
      *1 Aluminum Tape

      Make sure that the sealing surfaces of the No. 1 and No. 2 inverter drain plugs are covered with aluminum tape.

      Note

      If the sealing surfaces of the No. 1 and No. 2 inverter drain plugs are not covered with aluminum tape, do not use them as they cannot be securely installed with only seal packing.

    2. B0040ZWE04
      Text in Illustration
      *1 Release Film

      Remove the release film from the No. 1 and No. 2 inverter drain plugs.

    3. B0040V1E04
      Text in Illustration
      *1 No. 1 Inverter Drain Plug
      *2 No. 2 Inverter Drain Plug
      *3 Seal Packing
      *a Approximately 3.0 mm (0.118 in.)
      *b Approximately 3.0 mm (0.118 in.)

      Apply seal packing (diameter: 3.0 mm (0.118 in.)) to new No. 1 and No. 2 inverter drain plugs.

      Seal Packing
      Toyota Genuine Seal Packing 1282B, Three Bond 1282B or equivalent

      Note


      • Be sure to use the specified type of seal packing.

      • Install the No. 1 and No. 2 inverter drain plugs within 3 minutes of applying seal packing.

    4. B0040U4E02
      Text in Illustration
      *1 No. 1 Inverter Drain Plug
      *2 No. 2 Inverter Drain Plug

      Install the No. 1 and No. 2 inverter drain plugs to the inverter with converter assembly.

  12. INSTALL INVERTER SIGNAL CONNECTOR COVER


    1. B0040WDE03
      Text in Illustration
      *1 Gasket

      Install the gasket to the inverter signal connector cover.

      Tech Tips

      Make sure that the protrusion (A) of the gasket is securely inserted into the groove of the inverter signal connector cover.

    2. Clean the installation surface.

    3. B004160E01
      Text in Illustration
      *1 Inverter Signal Connector Cover

      Install the inverter signal connector cover with the 4 bolts.

      Torque:
      6.0 N*m  { 61 kgf*cm, 53 in.*lbf }

  13. INSTALL INVERTER COVER


    1. B00410IE03
      Text in Illustration
      *1 Protective Tape

      Remove the protective tape.

    2. B00415J

      Temporarily install the inverter cover with the 7 bolts to prevent any foreign matter or water from entering the inverter with converter assembly.

      Note

      Visually confirm that the inverter cover waterproofing rubber is securely installed before installing the inverter cover.

  14. INSTALL INVERTER TERMINAL COVER


    1. B00414WE02
      Text in Illustration
      *1 Interlock Connector

      Temporarily install the inverter terminal cover to the inverter with converter assembly with the 2 bolts.

      Note


      • Visually confirm that the inverter terminal cover waterproofing rubber is securely installed before installing the inverter terminal cover.

      • Make sure that the interlock connector is fully engaged.

  15. INSTALL INVERTER WITH CONVERTER ASSEMBLY

    Click here

  16. CHECK FOR COOLANT LEAK (for Inverter)


    1. Remove the reserve tank cap.

      CAUTION:

      Do not remove the reserve tank cap while the coolant (for inverter) is still hot. Pressurized, hot coolant and steam may be released and cause serious burns.

    2. B0040YL

      Install the radiator cap tester.

    3. Pump the radiator cap tester to 122 kPa (1.2 kgf/ cm2, 17.7 psi), and then check that the pressure does not drop.

      Tech Tips

      If the pressure drops, check the hoses, radiator, water pump, inverter with converter, and hybrid vehicle transaxle assembly for leaks.

    4. Install the reserve tank cap.

  17. OPERATION CHECK

    Tech Tips


    • After performing repair, check the operation as follows. Then check for DTCs again.

    • The current at the AMD terminal cannot be measured directly because of space limitations. Measure the current flow at the auxiliary battery instead.


    1. B00410PE24
      *1 Probe Direction
      *2 Current Flowing into Auxiliary Battery

      Connect an AC/DC 400 A probe from an ammeter to the positive (+) auxiliary battery cable.

    2. Turn the power switch on (READY) and leave the vehicle as is until the electric current flowing into the auxiliary battery becomes 10 A or less.

    3. B00410LE09
      *1 Probe Direction
      *2 Current Flowing from Auxiliary Battery

      Change the orientation of the AC/DC 400A probe.

    4. Measure the current flowing from the auxiliary battery with the power switch on (READY), the high beam headlights on and blower motor switch in the HI position, and rear window defogger turned on.

      Standard Current
      Item Switch Condition Specified Condition
      Current flowing from auxiliary battery

      Power switch on (READY)

      (High beam headlights on and blower motor switch in HI position, rear window defogger on)

      0 A or less

      (No current from auxiliary battery)

    5. Turn the power switch off.