LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Main Body Ecu - Service Information >> Main Body Ecu >> Removal [06/2018 - 08/2021] >> Procedure

Removal [06/2018 - 08/2021]: Procedure

  1. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY 

    Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - 08/2021]

  2. REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 27

  3. REMOVE HYBRID VEHICLE CONTROL ECU (for HV Model) 

    Refer to PROCEDURE - Step 3

  4. REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU 
    1. Disconnect each connector.
      GTY829366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the clamp.
    3. Disengage the 2 claws and pull down the 2 lock levers to disconnect the 2 connectors as shown in the illustration.
      GTY784634Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    4. Disconnect each connector.
      GTY784659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 2 nuts.
      GTY829364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Disengage the claw and guide and pull out the instrument panel junction block assembly with main body ECU.
      GTY800579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    7. Disengage the clamp.
      GTY784662Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Disengage the clamp.
      GTY784663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Disengage the 2 claws and raise the 2 lock levers to disconnect the 2 connectors as shown in the illustration and remove the instrument panel junction block assembly with main body ECU.
      GTY795896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
  5. REMOVE WIRING HARNESS CLAMP BRACKET 
    1. Remove the nut.
      GTY784666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the guide to remove the wiring harness clamp bracket.
  6. REMOVE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    1. Press the claw of the instrument panel junction block assembly as shown in the illustration to release the lock.
      GTY819136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Instrument Panel Junction Block Assembly
      *2 Main Body ECU (Multiplex Network Body ECU)
      Push in this Direction
    2. With the instrument panel junction block assembly lock released, insert a screwdriver with its tip wrapped with protective tape horizontally between the main body ECU (multiplex network body ECU) and junction block assembly.
      GTY824454Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protective Tape
      Insert in this Direction
      Remove in this Direction
      NOTE:
      • Use a screwdriver with a diameter between 5.0 mm (0.197 in.) and 6.3 mm (0.248 in.) and a length of approximately 90 mm (3.54 in.).
      • Do not insert the screwdriver under the connector socket of the main body ECU (multiplex network body ECU).
    3. Using the screwdriver, carefully raise the main body ECU (multiplex network body ECU) to the position where the connector becomes disconnected.
      NOTE:

      Do not twist the screwdriver to raise the main body ECU (multiplex network body ECU).

    4. Raise the main body ECU (multiplex network body ECU) as shown by the arrow (1), and then pull it out as shown by the arrow (2) in the illustration.
      GTY780821Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction (1)
      Remove in this Direction (2)
      NOTE:

      Do not touch the main body ECU (multiplex network body ECU) connector.

scientia non olet · About LEMON Manuals