RM35X0E _57 Power Source / Network _079061 POWER DISTRIBUTION _0383489 MAIN BODY ECU(for LHD) A

POWER DISTRIBUTION MAIN BODY ECU(for LHD) REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the main body ECU (multiplex network body ECU) removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure	Necessary procedures	Effect/Inoperative Function When Necessary Procedures are not Performed	Link
Disconnect cable from negative (-) battery terminal	Memorize steering angle neutral point	Parking assist monitor system	(201902,999999,_56,_079315,_0385736,RM100000001GNRA,)
Disconnect cable from negative (-) battery terminal	Memorize steering angle neutral point	Panoramic view monitor system	(201902,999999,_56,_079315,_0385736,RM100000001GNRA,)
w/ Entry and Start System: Replacement of main body ECU (multiplex network body ECU)	Code registration	· Wireless door lock control system (w/ Entry and Start System) · Entry and start system (for Entry function) · Entry and start system (for Start function) · Engine start function	See Service Bulletin for the registration method.

HINT:

When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Learning completes when vehicle is driven

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
Lane control system	Drive the vehicle straight ahead at 15 km/h (10 mph) or more for 1 second or more.	(201902,999999,_58,_078886,_0382740,RM100000001G6XB,)
Pre-collision system		(201902,999999,_58,_078886,_0382740,RM100000001G6XB,)

Learning completes when vehicle is operated normally

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
Power slide door system	Fully close the slide door by hand. HINT: Initialization is not necessary if the above procedures are performed while the slide door is closed.	(201902,999999,_59,_078503,_0381017,RM100000001FWXM,)
Air conditioning system	After the ignition switch is turned to ON, the servo motor standard position is recognized.	-

PROCEDURE

Hide Display 1. PRECAUTION

CAUTION:: Be sure to read Precaution thoroughly before servicing.; ·

for Type A:

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type A)>PRECAUTION201906,999999,_58,_079257,_0387732,RM100000001IMN3,

·

for Type C:

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type C)>PRECAUTION201906,999999,_58,_079257,_0396679,RM100000001IJ80,

NOTICE:: ·

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY201902,999999,_V1,_081196,_0393338,RM100000001HX6Q,

·

Do not remove the main body ECU (multiplex network body ECU) except when replacing it.

·

When removing the main body ECU (multiplex network body ECU), always replace it with a new one.

Hide Display 2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

for 7GR-FKS:

Click hereGeneral>MAINTENANCE>7GR-FKS BATTERY>REMOVAL201906,999999,_V1,_078672,_0387105,RM100000001IWL9,

for 1GD-FTV:

Click hereGeneral>MAINTENANCE>1GD-FTV BATTERY>REMOVAL201906,999999,_V1,_078672,_0387106,RM100000001IWLA,

CAUTION:: ·

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

·

If the airbag deploys for any reason, it may cause a serious accident.

Hide Display 67912A 3.REMOVE FRONT DOOR OUTSIDE SCUFF PLATE LH

Click hereVehicle Interior>INTERIOR PANELS / TRIM>ROOF HEADLINING (for Full-trim)>REMOVAL201906,202208,_58,_078375,_0381233,RM100000001IXV4_02_0046,202208,999999,_58,_078375,_0381233,RM1000000024I19_02_0046,

Hide Display 67914B 4.REMOVE FRONT DOOR SCUFF PLATE LH

Click hereVehicle Interior>INTERIOR PANELS / TRIM>ROOF HEADLINING (for Full-trim)>REMOVAL201906,202208,_58,_078375,_0381233,RM100000001IXV4_02_0001,202208,999999,_58,_078375,_0381233,RM1000000024I19_02_0001,

Hide Display 62112 5.REMOVE COWL SIDE TRIM BOARD LH

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0041,

Hide Display 55631A 6.REMOVE NO. 1 INSTRUMENT PANEL UNDER TRAY STOPPER

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0079,

Hide Display 55011A 7.REMOVE NO. 1 INSTRUMENT PANEL GARNISH SUB-ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0051,

Hide Display 55318C 8.REMOVE INSTRUMENT SIDE PANEL LH

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0053,

Hide Display 55641 9.REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0055,

Hide Display 53601 10.REMOVE HOOD LOCK CONTROL LEVER SUB-ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0011,

Hide Display 77306 11.REMOVE FUEL LID LOCK OPEN LEVER SUB-ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0056,

Hide Display 55432D 12.REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0012,

Hide Display 55044C 13.REMOVE INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0057,

Hide Display 55433B 14.REMOVE LOWER NO. 2 INSTRUMENT PANEL FINISH PANEL

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0013,

Hide Display 55445B 15.REMOVE INSTRUMENT PANEL FINISH PLATE (w/o Knee Airbag)

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0015,

Hide Display 55313 16.REMOVE LOWER INSTRUMENT PANEL LH (w/o Knee Airbag)

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL201906,999999,_58,_078375,_0380058,RM100000001IHOZ_02_0066,

Hide Display 73900 17.REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY (w/ Knee Airbag)

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>KNEE AIRBAG ASSEMBLY>REMOVAL201906,999999,_58,_079257,_0384937,RM100000001IIAE_01_0172,

Hide Display 18.REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU (for Manual Transmission)

Detach the hood look control cable assembly from the guide.

Disconnect the 3 connectors.

0,0 0,0 false

Rotate in this Direction

Rotate the wire harness clockwise and detach the wire harness clamp as shown in the illustration.

Detach the claw and remove the connector holder from the instrument panel junction block assembly with main body ECU.

1.635,0.833 2.427,0.833 true 1.646,1.229 1.979,1.229 1.979,1.229 1.979,0.833 true 2.469,0.74 2.677,0.927 0.208,0.188 10 true *a

*a	Lever Connector
	Rotate in this Direction
	Protective Tape

Using a thin-bladed screwdriver with its tip wrapped with protective tape, detach the claw and disconnect the 2 lever connectors.

Disconnect the 2 connectors.

Disconnect the 3 connectors.

Detach the claw and remove the wiring harness protector from the instrument panel junction block assembly with main body ECU.

Remove the nut.

Remove the 2 nuts and disconnect the instrument panel junction block assembly with main body ECU together with the wiring harness clamp bracket.

Detach the claw and remove the wiring harness protector assembly from the instrument panel junction block assembly with main body ECU.

Detach the claw and remove the instrument panel junction block assembly with main body ECU from the wiring harness clamp bracket.

Remove the bolt.

0,0 0,0 false

	Rotate in this Direction
	Protective Tape

Using a thin-bladed screwdriver with its tip wrapped with protective tape, detach the claw, disconnect the 2 lever connectors and remove the instrument panel junction block assembly with main body ECU.

Hide Display 19.REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU (for Automatic Transmission)

Detach the hood look control cable assembly from the guide.

Disconnect the 3 connectors.

0,0 0,0 false

Rotate in this Direction

Rotate the wire harness clockwise and detach the wire harness clamp as shown in the illustration.

Detach the claw and remove the connector holder from the instrument panel junction block assembly with main body ECU.

1.615,0.771 2.292,0.771 true 1.635,1.208 1.938,1.208 1.938,1.208 1.938,0.781 true 2.354,0.708 2.552,0.896 0.198,0.188 10 true *a

*a	Lever Connector
	Rotate in this Direction
	Protective Tape

Using a thin-bladed screwdriver with its tip wrapped with protective tape, detach the claw and disconnect the 2 lever connectors.

Disconnect the 2 connectors.

Disconnect the 3 connectors.

Detach the claw and remove the wiring harness protector from the instrument panel junction block assembly with main body ECU.

Detach the claw and remove the wiring harness protector from the instrument panel junction block assembly with main body ECU.

Remove the nut.

Remove the 2 nuts and disconnect the instrument panel junction block assembly with main body ECU together with the wiring harness clamp bracket.

Detach the claw and remove the instrument panel junction block assembly with main body ECU from the wiring harness clamp bracket.

0,0 0,0 false

	Rotate in this Direction
	Protective Tape

Using a thin-bladed screwdriver with its tip wrapped with protective tape, detach the claw and disconnect the 2 lever connectors and remove the instrument panel junction block assembly with main body ECU.

Hide Display 20.REMOVE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Press the lock of the instrument panel junction block assembly and release the lock of the main body ECU (multiplex network body ECU) as shown in the illustration.

4.281,4.479 4.708,4.479 false 4.906,5.135 4.906,4.698 false 4.854,5.156 5.167,5.313 0.313,0.156 10 false *a 4.094,4.396 4.406,4.552 0.313,0.156 10 false *b

*a	Instrument Panel Junction Block Assembly	*b	Main Body ECU (Multiplex Network Body ECU)
	Movement Direction		Instrument Panel Junction Block Assembly Lock

While pressing the lock, horizontally insert a thin-bladed screwdriver with its tip wrapped with protective tape between the main body ECU (multiplex network body ECU) and instrument panel junction block assembly.

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.).

0,0 0,0 false

Horizontally Insert a Thin-bladed Screwdriver

Protective Tape

0.635,1.49 1.25,1.49 true 0.448,1.406 0.76,1.563 0.313,0.156 10 false *a

*a	Internal Connector
	Insert a Thin-bladed Screwdriver in this Direction
	Released in this Direction
	Protective Tape

When the thin-bladed screwdriver with its tip wrapped with protective tape is inserted, the internal connector lock is released.

NOTICE:: ·

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

·

Do not excessively insert the screwdriver. Otherwise, the internal connector terminals may become deformed or damaged.

·

Replace the instrument panel junction block assembly when the connector terminal, the locking section, or the case is damaged or deformed.

Hold the rib of the main body ECU (multiplex network body ECU).

0,0 0,0 false

Rotate in this Direction

While rotating the main body ECU (multiplex network body ECU), completely release the lock.

0,0 0,0 false

Remove in this Direction

Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.