Toyota CH-R Service Manual: Installation

INSTALLATION

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.

*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.

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

*a

Housing Sidewall

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.

*a

Side A

Install in this Direction

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

*1

Instrument Panel Junction Block Assembly

*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.

(e) Engage the clamp to install the wiring harness clamp bracket.

(f) Temporarily install the bolt.

HINT:

Do not fully tighten the bolt.

2. INSTALL INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU

(a) Connect the 2 connectors and raise the lock levers to engage the claws and lock the connector as shown in the illustration.

Install in this Direction

NOTICE:

Be sure to connect the connector securely.

(b) Engage the clamp.

(c) Engage the clamp.

(d) Engage the clamp to install the instrument panel junction block assembly with main body ECU.

(e) Install the bolt and nut.

Torque:

8.0 N·m {82 kgf·cm, 71 in·lbf}

(f) Tighten the 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 claws and lock the connector as shown in the illustration.

Install in this Direction

NOTICE:

Be sure to connect the connector securely.

(h) Connect the 4 connectors.

(i) Engage the clamp.

3. INSTALL NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY (except Cold Area Specification Vehicles)

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4. INSTALL NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY (for Cold Area Specification Vehicles)

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5. INSTALL LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY

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6. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

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