Installation [11/2015 - ]: Procedure

1. Set the main body ECU (multiplex network body ECU) to the position where the guide of the main body ECU (multiplex network body ECU) contacts the housing sidewall of the instrument panel junction block assembly as shown in the illustration.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	20° or more
   *b	Housing Sidewall
   	Set in this Direction

   HINT: 

   Make sure to keep the angle at 20° or more as shown in the illustration.

2. Slide the main body ECU (multiplex network body ECU) along the housing sidewall as shown in the illustration and engage the 2 guides.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Housing Sidewall
   	Slide in this Direction

3. While keeping the main body ECU (multiplex network body ECU) in contact with side A of the instrument panel junction block assembly (axis of rotation), lower it as shown in the illustration.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Side A
   	Install in this Direction

4. Press the push area until the claw engages to install the main body ECU (multiplex network body ECU).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Instrument Panel Junction Block Assembly
   *2	Main Body ECU (Multiplex Network Body ECU)
   	Push Area

   NOTE:

   • Make sure to press only the push area.
   • Confirm the engagement of the main body ECU (multiplex network body ECU) and instrument panel junction block assembly by listening for the click sound of the lock engaging.

   HINT: 

   If a click sound cannot be heard, visually check the engagement of the lock. The engagement can also be confirmed if the main body ECU (multiplex network body ECU) and instrument panel junction block assembly are flush.

1. Engage the claw and install the wiring harness clamp bracket as shown in the illustration.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Install in this Direction

2. Temporarily install the bolt.

   HINT: 

   Do not fully tighten the bolt.

1. Connect the 2 connectors and raise the 2 lock levers to engage the 2 claws and lock the connector as shown in the illustration.
   NOTE:

   Be sure to connect the connector securely.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Install in this Direction

2. Engage the clamp.
3. Engage the clamp.
4. Install the instrument panel junction block assembly with main body ECU with the bolt and nut.

   Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) 

5. Tighten the bolt to install the wiring harness clamp bracket to the instrument panel junction block assembly with main body ECU.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) 

6. Connect the 2 connectors and raise the 2 lock levers to engage the 2 claws and lock the connector as shown in the illustration.
   NOTE:

   Be sure to connect the connector securely.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Install in this Direction

7. Engage the clamp.
8. Connect each connector.

Refer to PROCEDURE - STEP 5 [11/2015 - 11/2017] , or refer to PROCEDURE - STEP 5 [11/2017 - 12/2018] , or refer to PROCEDURE - STEP 5 [12/2018 - 07/2020] , or refer to PROCEDURE - STEP 5 [07/2020 - 06/2021] , or refer to PROCEDURE - STEP 5 [06/2021 - ]

Refer to INSTALLATION [11/2015 - ]