RM38T0EC _57 Power Source / Network _111968 POWER DISTRIBUTION _0500002 MAIN BODY ECU A

POWER DISTRIBUTION MAIN BODY ECU REMOVAL

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

3.49,0.583 3.823,0.583 false 6.469,0.281 6.802,0.281 false 6.479,0.677 6.76,0.677 false 2.688,4.156 3.021,4.156 false 2.208,2.885 2.542,2.885 false 0.604,1.677 0.938,1.677 false 2.469,1.333 2.906,1.333 false 6.063,4.115 6.063,4.448 false 4.677,1.5 5.01,1.5 false 4.625,3.823 4.625,4.156 false 3.927,3.26 3.927,3.594 false 3.729,2.281 4.063,2.281 false 3.156,0.448 3.729,0.906 0.573,0.458 18 false 12 6.271,0.135 6.552,0.49 0.281,0.354 18 false 1 6.271,0.531 6.552,0.885 0.281,0.354 18 false 2 2.5,4 2.781,4.354 0.281,0.354 18 false 3 2.594,2.74 2.875,3.094 0.281,0.354 18 false 4 1.01,1.542 1.333,1.865 0.323,0.323 18 false 5 3.24,1.208 3.521,1.563 0.281,0.354 18 false 6 6.01,4.479 6.354,4.781 0.344,0.302 18 false 7 4.563,4.177 4.844,4.531 0.281,0.354 18 false 8 3.865,3.594 4.323,4.063 0.458,0.469 18 false 9 4.354,1.365 4.813,1.833 0.458,0.469 18 false 11 6.688,4.292 7,4.49 0.313,0.198 10 false x2 4.094,2.125 4.552,2.594 0.458,0.469 18 false 10

Procedure		Part Name Code
1	PRECAUTION	-	(202307,999999,_57,_111968,_0500002,RM100000002BJZO_01_0039,)	-	-
2	DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL	-	-	-
3	FRONT DOOR SCUFF PLATE LH	67914B	-	-	-
4	COWL SIDE TRIM SUB-ASSEMBLY LH	62112A	-	-	-
5	FRONT DOOR OPENING TRIM WEATHERSTRIP LH	62312B	-	-	-
6	NO. 1 INSTRUMENT SIDE PANEL	55317E	(202307,999999,_57,_111968,_0500002,RM100000002BJZO_01_0055,)	-	-
7	NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY	55606	-	-	-
8	HOOD LOCK CONTROL LEVER SUB-ASSEMBLY	53601	-	-	-
9	LOWER INSTRUMENT PANEL FINISH PANEL	55432B	-	-	-
10	INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY	55403F
11	NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY	55308B	-	-	-
12	INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU	-	-	-	-

5.844,2.438 6.177,2.438 false 4.5,0.875 4.833,0.875 false 6.469,2.323 6.844,2.719 0.375,0.396 18 false 14 4.885,0.75 5.26,1.146 0.375,0.396 18 false 13

Procedure		Part Name Code
13	WIRING HARNESS CLAMP BRACKET	82716A	-	-	-
14	MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)	-	(202307,999999,_57,_111968,_0500002,RM100000002BJZO_01_0051,)	-	-

CAUTION / NOTICE / HINT

CAUTION:: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.; Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>PRECAUTION202201,202405,_58,_115188,_0511913,RM1000000020FQM,202405,999999,_58,_115188,_0511913,RM100000002MT79,

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 Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
1: for Gasoline Model 2: for HEV Model
w/ Smart Entry and Start System: Main body ECU (multiplex network body ECU)	ECU configuration	-	(202307,202405,_V1,_106911,_0485801,RM100000002CEL1,202405,999999,_V1,_106911,_0485801,RM100000002NHZU,)
	Code registration	· Wireless door lock control system (w/ Smart Entry and Start System) · Smart Entry and start system (for Entry function) · Smart Entry and start system (for Start function) · Engine start function1 · Hybrid control system cannot be started2	See Service Bulletin for the registration method.

HINT:

When the cable is disconnected/reconnected to the auxiliary 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
*1: for Gasoline Model
Front camera system	Drive the vehicle straight ahead at 15 km/h (10 mph) or more for 1 second or more.	(202307,999999,_95,_112293,_0586709,RM100000002BSVY,)
Stop and start system*1	Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)	(202307,999999,_51,_115233,_0510781,RM100000002CS0B,)

Learning completes when vehicle is operated normally

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
Power door lock control system · Back door opener	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.	(202201,999999,_58,_115226,_0510939,RM1000000020BSY,)
Power back door system	Fully close the back door by hand. HINT: Initialization is not necessary if the above procedures are performed while the back door is closed.	(202201,999999,_59,_113746,_0504731,RM100000001ZJKP,)
Air conditioning system	After the ignition switch is turned to ON, the servo motor standard position is recognized.	-

PROCEDURE

Hide Display 1. PRECAUTION

NOTICE:: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.; (202307,999999,_V1,_106911,_0485800,RM100000002CEKY,)

Hide Display 2.DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

for Gasoline Model:

Click hereGeneral>MAINTENANCE>M20A-FKS, M20C-FKS, M20E-FKS AUXILIARY BATTERY>REMOVAL202307,999999,_V1,_104397,_0505262,RM100000002CKOR,

for HEV Model:

Click hereGeneral>MAINTENANCE>M20F-FXS, M20G-FXS AUXILIARY BATTERY>REMOVAL202307,999999,_V1,_104397,_0604345,RM100000002BTXA,

Hide Display 67914B 3.REMOVE FRONT DOOR SCUFF PLATE LH

Click hereVehicle Interior>INTERIOR PANELS / TRIM>ROOF HEADLINING>REMOVAL202307,999999,_58,_112291,_0501087,RM100000002BHCJ_02_0001,

Hide Display 62112A 4.REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH

Click hereVehicle Interior>INTERIOR PANELS / TRIM>ROOF HEADLINING>REMOVAL202307,999999,_58,_112291,_0501087,RM100000002BHCJ_02_0268,

Hide Display 62312B 5.DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP LH

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL202307,999999,_58,_112291,_0501085,RM100000002BHCD_01_0114,

Hide Display 55317E 6.REMOVE NO. 1 INSTRUMENT SIDE PANEL

Click here(

202307,999999,_58,_112291,_0501085,RM100000002BHCD_01_0010,)

Hide Display 55606 7.REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>FRONT CONSOLE BOX>REMOVAL202307,999999,_58,_112291,_0501086,RM100000002BHCH_01_0060,

Hide Display 53601 8.DISCONNECT HOOD LOCK CONTROL LEVER SUB-ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL202307,999999,_58,_112291,_0501085,RM100000002BHCD_01_0011,

Hide Display 55432B 9.REMOVE LOWER INSTRUMENT PANEL FINISH PANEL

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL202307,999999,_58,_112291,_0501085,RM100000002BHCD_01_0044,

Hide Display 55403F 10.REMOVE INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>INSTRUMENT PANEL SAFETY PAD>REMOVAL202307,999999,_58,_112291,_0501085,RM100000002BHCD_01_0151,

Hide Display 55308B 11.REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY

Hide Display 12.REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU

0,0 0,0 false

Remove in this Direction

Hide Display 82716A 13.REMOVE WIRING HARNESS CLAMP BRACKET

Hide Display 14.REMOVE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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

1.198,0.146 1.479,0.5 0.281,0.354 18 false i 1.042,2.354 1.625,2.729 0.583,0.375 18 false iii 3.698,2.042 3.979,2.396 0.281,0.354 18 false iv 2.958,3.427 3.542,3.802 0.583,0.375 18 false ii

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

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

ii.

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 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.).

·

Do not insert the screwdriver under the connector socket of the main body ECU (multiplex network body ECU).

iii.

Using the screwdriver, carefully raise the main body ECU (multiplex network body ECU) to the position where the connector becomes disconnected as shown in the illustration.

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

iv.

Remove the main body ECU (multiplex network body ECU) as shown in the illustration.