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Home >> Lexus >> 2018 >> GS 450h Base >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Battery Management Systems >> Hybrid Battery Control System (Service Information) >> Battery Smart Unit >> Installation [09/2014 - 10/2015] >> Procedure

Installation [09/2014 - 10/2015]: Procedure

  1. CHECK PART NUMBER OF THE BATTERY SMART UNIT 

    If the battery smart unit had been replaced just before the malfunction occurred, check the part number of the battery smart unit.

    NOTE:
    • The type of battery smart unit to be used varies depending on the vehicle model.
    • If the wrong type of battery smart unit is installed, the power switch cannot be turned on (READY).
    • After installing the battery smart unit, perform the following to check that the power switch can be turned on (READY).
      1. Turn the power switch on (READY).
      2. Turn the power switch off and wait for 30 seconds or more.
      3. Turn the power switch on (READY) again.
  2. INSTALL BATTERY SMART UNIT 
    WARNING:

    Perform work using insulated gloves and insulated tools.

    1. Install the battery smart unit with the 2 nuts.

      Torque: 7.5 N*m (76 kgf*cm, 66 in.*lbf) 

    2. Connect the 3 connectors.
  3. INSTALL NO. 4 HYBRID VEHICLE BATTERY CARRIER BRACKET SUB-ASSEMBLY 
    WARNING:

    Perform work using insulated gloves and insulated tools.

    1. Install the No. 4 hybrid vehicle battery carrier bracket sub-assembly with the nut.

      Torque: 7.5 N*m (76 kgf*cm, 66 in.*lbf) 

    2. Attach the wire harness clamp.
    3. Attach the 2 wire harness clamps to connect the power steering converter wire.
  4. INSTALL HYBRID BATTERY JUNCTION BLOCK ASSEMBLY 

    See step  1

  5. INSTALL UPPER HYBRID BATTERY COVER SUB-ASSEMBLY 

    See step  14

  6. INSTALL REAR NO. 1 HYBRID BATTERY SHIELD 

    See step  15

  7. INSTALL BATTERY COOLING BLOWER ASSEMBLY 

    See step  14

  8. INSTALL VOLTAGE INVERTER ASSEMBLY (w/ Voltage Inverter) 

    Refer to PROCEDURE - Step 1

  9. INSTALL POWER STEERING CONVERTER ASSEMBLY 

    See step  19

  10. INSTALL ECU BRACKET 

    See step  20

  11. INSTALL NO. 3 HYBRID BATTERY INTAKE DUCT 

    See step  21

  12. INSTALL BRAKE CONTROL POWER SUPPLY ASSEMBLY 

    Refer to PROCEDURE - Step 2

  13. INSTALL NO. 6 HYBRID BATTERY INTAKE DUCT 

    See step  27

  14. INSTALL NO. 1 HYBRID BATTERY INTAKE DUCT 

    See step  28

  15. CONNECT NO. 4 FLOOR WIRE 

    See step  29

  16. CHECK HIGH VOLTAGE CABLE CONNECTION CONDITION 

    See step  3

  17. INSTALL NO. 4 HYBRID VEHICLE BATTERY SHIELD SUB-ASSEMBLY 

    See step  31

  18. INSTALL INNER LUGGAGE COMPARTMENT TRIM COVER LH 

    Refer to PROCEDURE - Step 11

  19. INSTALL INNER LUGGAGE COMPARTMENT TRIM COVER RH 

    Refer to PROCEDURE - Step 12

  20. INSTALL ROPE HOOK 

    Refer to PROCEDURE - Step 13

  21. INSTALL FRONT LUGGAGE COMPARTMENT TRIM COVER 

    Refer to PROCEDURE - Step 14

  22. INSTALL REAR FLOOR FINISH PLATE 

    Refer to PROCEDURE - Step 15

  23. INSTALL REAR LUGGAGE COMPARTMENT TRIM COVER 

    Refer to PROCEDURE - Step 16

  24. INSTALL NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY 

    Refer to PROCEDURE - Step 3

  25. INSTALL NO. 1 LUGGAGE COMPARTMENT TRIM HOOK 

    Refer to PROCEDURE - Step 18

  26. INSTALL REAR LUGGAGE COMPARTMENT TRAY BRACKET LH 

    Refer to PROCEDURE - Step 19

  27. INSTALL REAR LUGGAGE COMPARTMENT TRAY BRACKET RH 

    Refer to PROCEDURE - Step 20

  28. INSTALL ROPE HOOK ASSEMBLY 

    Refer to PROCEDURE - Step 21

  29. INSTALL LUGGAGE COMPARTMENT SIDE TRAY 

    Refer to PROCEDURE - Step 22

  30. INSTALL SIDE TRIM BOX 

    Refer to PROCEDURE - Step 23

  31. INSTALL LUGGAGE COMPARTMENT TRIM COVER RH 

    Refer to PROCEDURE - Step 25

  32. INSTALL NO. 1 ROOM PARTITION PAD 

    See step  46

  33. INSTALL NO. 2 ROOM PARTITION PAD 

    See step  47

  34. INSTALL NO. 2 PACKAGE TRAY TRIM PANEL ASSEMBLY 

    Refer to PROCEDURE - Step 2

  35. INSTALL CENTER STOP LIGHT COVER 

    Refer to PROCEDURE - Step 2

  36. INSTALL PACKAGE TRAY TRIM PANEL ASSEMBLY 

    See step  50

  37. INSTALL INNER ROOF SIDE GARNISH LH 

    Refer to PROCEDURE - Step 17

  38. INSTALL REAR SEAT SIDE GARNISH LH 

    Refer to PROCEDURE - Step 19

  39. INSTALL REAR DOOR SCUFF PLATE LH 

    Refer to PROCEDURE - Step 25

  40. INSTALL INNER ROOF SIDE GARNISH RH 

    Refer to PROCEDURE - Step 18

  41. INSTALL REAR SEAT SIDE GARNISH RH 

    Refer to PROCEDURE - Step 20

  42. INSTALL REAR DOOR SCUFF PLATE RH 

    Refer to PROCEDURE - Step 26

  43. INSTALL REAR SEAT ASSEMBLY 

    (Refer to INSTALLATION [09/2014 - ] )

  44. INSTALL SERVICE PLUG GRIP 

    See step  1

  45. INSTALL LOWER HYBRID VEHICLE BATTERY COVER PANEL 

    See step  2

  46. INSTALL NO. 1 SEAT ARMREST CAP 

    Refer to PROCEDURE - Step 18

  47. CONNECT CABLE TO AUXILIARY BATTERY TERMINAL 

    See step  61

  48. INSTALL LUGGAGE COMPARTMENT TRIM COVER LH 

    Refer to PROCEDURE - Step 24

  49. INSTALL LUGGAGE COMPARTMENT FLOOR MAT 

    Refer to PROCEDURE - Step 26

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