Installation
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. INSTALL MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
NOTICE:
- Make sure that the connecting surfaces are free of foreign matter.
- Do not touch the main body ECU (multiplex network body ECU) connector.
(a) 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.
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*a | 20° or more |
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*b | Housing Sidewall |
 |
Set in this Direction |
HINT:
Make sure to keep the angle at 20° or more as shown in the illustration.
(b)
Slide the main body ECU (multiplex network body ECU) along the housing
sidewall as shown in the illustration and engage the 2 guides.
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*a | Housing Sidewall |
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Slide in this Direction |
(c)
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.
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*a | Side A |
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Install in this Direction |
(d) Press the push area until the claw engages to install the main body ECU (multiplex network body ECU).
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*1 | Instrument Panel Junction Block Assembly |
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*2 | Main Body ECU (Multiplex Network Body ECU) |
 |
Push Area |
NOTICE:
- 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.
2. INSTALL WIRING HARNESS CLAMP BRACKET
(a) Engage the guide.
(b) Install the wiring harness clamp bracket with the nut.
Torque:
8.0 N·m {82 kgf·cm, 71 in·lbf}
3. INSTALL INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU
(a)
Connect the 2 connectors and raise the 2 lock levers to engage the 2
claws and lock the connector as shown in the illustration.
NOTICE:
Be sure to connect the connector securely.
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| Install in this Direction |
(b) Engage the clamp.
(c) Engage the clamp.
(d) Engage the claw and guide to install the instrument panel junction block assembly with main body ECU.
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|
Install in this Direction |
(e) for Gasoline Model:
(1) Install the 2 nuts.
Torque:
8.0 N·m {82 kgf·cm, 71 in·lbf}
(f) for HV Model:
(1) Install the 2 nuts and bolt.
Torque:
8.0 N·m {82 kgf·cm, 71 in·lbf}
(g)
Connect the 2 connectors and raise the 2 lock levers to engage the 2
claws and lock the connector as shown in the illustration.
NOTICE:
Be sure to connect the connector securely.
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| Install in this Direction |
(h) Engage the clamp.
(i) Connect each connector.
4. INSTALL NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY
Click here 
5. INSTALL LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY
Click here
Removal
REMOVAL
CAUTION / NOTICE / HINT
The
necessary procedures (adjustment, calibration, initialization, or
registration) that must be performed after parts are removed and
installed, or replaced during main body ECU (multiplex network body ECU)
removal/installation are shown below.
Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model) |
Replaced Part or Performed Procedure |
Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed |
Link |
|
*: When performing learning using the Techstream.
Click here  |
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Disconnect cable from negative battery terminal |
Perform steering sensor zero point calibration |
Lane departure alert system (w/ Steering Control) |
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|
Pre-collision system |
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Intelligent clearance sonar system* |
|
Lighting system (for Gasoline Model with Cornering Light) |
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Memorize steering angle neutral point |
Parking assist monitor system |
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Panoramic view monitor system |
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Main body ECU (multiplex network body ECU) |
Code registration (Smart key System (for Start Function) |
- Wireless door lock control system
- Smart key system (for Entry Function)
- Smart key system (for Start Function)
- Steering lock function
|
|
CAUTION:
Some
of these service operations affect the SRS airbag system. Read the
precautionary notices concerning the SRS airbag system before servicing.
Click here
Necessary Procedure After Parts Removed/Installed/Replaced (for HV Model) |
Replaced Part or Performed Procedure |
Necessary Procedure | Effect/Inoperative Function When Necessary Procedures are not Performed |
Link |
|
*: When performing learning using the Techstream.
Click here |
|
Disconnect cable from negative auxiliary battery terminal |
Perform steering sensor zero point calibration |
Lane departure alert system (w/ Steering Control) |
|
|
Pre-collision system |
|
Intelligent clearance sonar system* |
|
Lighting system (for HV Model with Cornering Light) |
|
Memorize steering angle neutral point |
Parking assist monitor system |
|
|
Panoramic view monitor system |
|
|
Main body ECU (multiplex network body ECU) |
Code registration (Smart key System (for Start Function) |
- Wireless door lock control system
- Smart key system (for Entry Function)
- Smart key system (for Start Function)
- Steering lock function
|
|
CAUTION:
Some
of these service operations affect the SRS airbag system. Read the
precautionary notices concerning the SRS airbag system before servicing.
Click here
PROCEDURE
1. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY
Click here
2. REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY
Click here
3. REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU
| (a) Disconnect each connector. | |
(b) Disengage the clamp.
(c) Disengage the 2 claws and pull down the 2 lock levers to disconnect the 2 connectors as shown in the illustration.
 | Remove in this Direction |
| (d) Disconnect each connector. | |
(e) for Gasoline Model:
(f) for HV Model:
(1) Remove the 2 nuts and bolt.
 |
Nut |
 |
Bolt |
(g) Disengage the claw, guide and pull out the instrument panel junction block assembly with main body ECU.
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Remove in this Direction |
(j)
Disengage the 2 claws and pull down 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.
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| Remove in this Direction |
4. REMOVE WIRING HARNESS CLAMP BRACKET
(b) Disengage the guide to remove the wiring harness clamp bracket.
5. REMOVE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
(a) Press the claw of the instrument panel junction block assembly as shown in the illustration to release the lock.
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*1 | Instrument Panel Junction Block Assembly |
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*2 | Main Body ECU (Multiplex Network Body ECU) |
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|
Press in this Direction |
(b)
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.
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*a | Protective Tape |
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Insert in this Direction |
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Remove in this Direction |
NOTICE:
- 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).
(c) Using the screwdriver, carefully
raise the main body ECU (multiplex network body ECU) to the position
where the connector becomes disconnected.
NOTICE:
Do not twist the screwdriver to raise the main body ECU (multiplex network body ECU).
(d)
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.
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| Remove in this Direction (1) |
 | Remove in this Direction (2) |
NOTICE:
Do not touch the main body ECU (multiplex network body ECU) connector.
