Toyota CH-R Service Manual: 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 the main body ECU (multiplex network body ECU) removal/installation are shown below.

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

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2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

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

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3. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY

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

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

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6. REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU

(a) Disengage the clamp.

(b) Disconnect the 4 connectors.

(c) Disengage the claws and pull down the lock levers to disconnect the 2 connectors as shown in the illustration.

Remove in this Direction

(d) Remove the bolt and nut.

(e) Disengage the clamp.

(f) Pull out the instrument panel junction block assembly with main body ECU.

(g) Disengage the clamp.

(h) Disengage the clamp.

Remove in this Direction

(i) Disengage the claws and pull down the lock levers to disconnect the 2 connectors as shown in the illustration.

(j) Remove the instrument panel junction block assembly with main body ECU.

7. REMOVE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Remove the bolt.

(b) Disengage the clamp to remove the wiring harness clamp bracket.

(c) Press the claw of the instrument panel junction block assembly as shown in the illustration to release the lock.

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

(d) With the instrument panel junction block assembly lock released, insert a screwdriver with its tip wrapped in protective tape horizontally between the main body ECU (multiplex network body ECU) and the instrument panel junction block assembly.

*a	Protective Tape
	Insert in this Direction
	Remove in this Direction

(e) 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).

(f) 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.

	Remove in this Direction (1)
	Remove in this Direction (2)

NOTICE:

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