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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Sub Battery System - Service Information >> Sub Battery Relay >> Removal [10/2022 - 10/2023] >> Procedure

Removal [10/2022 - 10/2023]: Procedure

  1. PRECAUTION 
    NOTE:

    After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [10/2022 - 10/2023]

  2. REMOVE AUXILIARY BATTERY 

    Refer to REMOVAL [10/2022 - 10/2023]

  3. REMOVE LUGGAGE COMPARTMENT FLOOR MAT 

    Refer to PROCEDURE - Step 24

  4. REMOVE LUGGAGE COMPARTMENT TRIM COVER LH 

    Refer to PROCEDURE - Step 26

  5. REMOVE LUGGAGE COMPARTMENT TRIM COVER RH 

    Refer to PROCEDURE - Step 27

  6. REMOVE SIDE TRIM BOX 

    Refer to PROCEDURE - Step 16

  7. REMOVE ROPE HOOK ASSEMBLY 

    Refer to PROCEDURE - Step 10

  8. REMOVE REAR FLOOR FINISH PLATE 

    Refer to PROCEDURE - Step 11

  9. REMOVE INNER LOWER LUGGAGE COMPARTMENT TRIM COVER 

    Refer to PROCEDURE - Step 29

  10. REMOVE NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY 

    Refer to PROCEDURE - Step 1

  11. REMOVE FRONT LUGGAGE COMPARTMENT TRIM COVER 

    Refer to PROCEDURE - Step 30

  12. REMOVE REAR LUGGAGE COMPARTMENT TRIM COVER 

    Refer to PROCEDURE - Step 33

  13. REMOVE LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY RH 

    Refer to PROCEDURE - Step 17

  14. REMOVE LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY LH 

    Refer to PROCEDURE - Step 14

  15. REMOVE REAR LUGGAGE COMPARTMENT TRAY BRACKET RH 

    See step  14

  16. REMOVE BATTERY CARRIER CATCH BRACKET SUB-ASSEMBLY 
    1. Remove the 4 nuts and the battery carrier catch bracket sub-assembly.
      GTY810855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE BATTERY CARRIER ASSEMBLY 
    1. Remove the 6 bolts and battery carrier assembly.
      GTY835097Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE CONNECTOR COVER 

    See step  15

  19. REMOVE LUGGAGE ROOM RELAY BLOCK 
    1. Loosen the nut and disconnect the positive (+) terminal of the sub-battery from the sub-battery module assembly.
    2. Remove the 2 bolts from the luggage room relay block.
      GTY810851Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Detach the clamp and claw and disconnect the luggage room relay block.
    4. Remove the relay block cover.
      GTY810849Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Lift up the lock lever and disconnect the connector as shown in the illustration.
      GTY810852Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Detach the 3 clamps and disconnect the luggage room relay block harness from the luggage room panel.
    7. Detach the 2 clamps and disconnect the luggage room relay block harness from the luggage room panel.
      GTY810850Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. w/ Dynamic Rear Steering:
      1. Lift up the lock lever and disconnect the connector of the DRS control ECU as shown in the illustration.
        GTY778141Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Ground Wire Bolt
        *b Ground Wire
      2. Remove the bolt and ground wire.
      3. Detach the 2 clamps and disconnect the luggage room relay block harness from the luggage room panel.
  20. REMOVE BACKUP RELAY 
    1. Detach the clamp and disconnect the 3 tie wraps from the luggage room relay block.
      GTY786238Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Luggage Room Relay Block Lower Side
    2. Detach the 6 claws and remove the relay block lower cover from the luggage room relay block.
      GTY802333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Luggage Room Relay Block Lower Side
    3. Detach the 3 claws and disconnect the relay block assembly from the luggage room relay block.
      GTY792668Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Luggage Room Relay Block Upper Side
    4. Loosen the bolt and nut and remove them from the backup relay terminal.
      GTY777664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Backup Relay Terminal Side
    5. Loosen the 2 bolts and remove them from the backup relay.
    6. Disconnect the connector from the backup relay.
    7. Detach the claw and remove the backup relay from the relay block assembly.
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