RM3660EC _51 Engine / Hybrid System _080777 NR Series ENGINE CONTROL _0392337 ECM A

NR Series ENGINE CONTROL ECM 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 ECM 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
Replacement of ECM	Perform Vehicle Identification Number (VIN) or frame number registration	DTC is stored	(201906,999999,_51,_080777,_0393969,RM100000001I1RD,)
	1. Reset memory 2. Deceleration sensor zero point calibration 3. CVT oil pressure calibration	· Large shift shock · Deterioration of fuel efficiency	(201906,999999,_52,_080728,_0392261,RM100000001HP98,)
	Code registration (Immobiliser system)	Engine start	See Service Bulletin for the registration method

NOTICE:: ·

If the ECM has been struck or dropped, replace it.

·

Perform the Vehicle Identification Number (VIN) or frame number registration when replacing the ECM.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>REGISTRATION201906,999999,_51,_080777,_0393969,RM100000001I1RD,

·

When replacing the ECM, use the GTS to save "Heavy Knock History" and then upload it to the new ECM.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>REGISTRATION201906,999999,_51,_080777,_0393969,RM100000001I1RD,

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 Procedure not Performed	Necessary Procedure	Link
Stop and Start System	Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted	(201906,999999,_51,_080774,_0393362,RM100000001HXHC,)
Pre-collision System	Perform steering sensor zero point calibration	(202304,999999,_95,_139716,_0601175,RM100000002BFOE,)
Lane Tracing Assist System	Perform steering sensor zero point calibration	(202304,999999,_95,_139716,_0601175,RM100000002BFOE,)

PROCEDURE

Hide Display 1. PRECAUTION

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 BATTERY202304,202502,_V1,_143216,_0598315,RM100000002B3MI,202502,999999,_V1,_143216,_0598315,RM100000002RP07,

Hide Display 2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

Click hereGeneral>MAINTENANCE>NR Series BATTERY>REMOVAL202304,999999,_V1,_080956,_0392375,RM100000002BCCL_05_0005,

Hide Display 53289A 3.REMOVE RADIATOR SUPPORT OPENING COVER

for TFTM Made

Click hereVehicle Exterior>EXTERIOR PANELS / TRIM>FRONT BUMPER (for TFTM Made)>REMOVAL202304,202307,_59,_080736,_0392548,RM100000002AMO3_01_0020,202307,999999,_59,_080736,_0392548,RM100000002CH8T_01_0020,

for GTMC Made

Click hereVehicle Exterior>EXTERIOR PANELS / TRIM>FRONT BUMPER (for GTMC Made)>REMOVAL202304,202307,_59,_080736,_0392547,RM100000002AXCM_01_0020,202307,999999,_59,_080736,_0392547,RM100000002CHFA_01_0020,

Hide Display 17751 4.REMOVE INLET NO. 1 AIR CLEANER

Click hereEngine / Hybrid System>NR Series (COOLING)>COOLING FAN MOTOR>REMOVAL201906,999999,_51,_080776,_0392641,RM100000001HRWA_02_0042,

Hide Display 17705 5.REMOVE AIR CLEANER CAP SUB-ASSEMBLY

Disconnect the mass air flow meter sub-assembly connector.

Disengage the clamp from the air cleaner cap sub-assembly.

Disengage the 2 clamps.

Disengage the 2 guides to separate the air cleaner cap sub-assembly from the air cleaner case sub-assembly.

Loosen the hose clamp and remove the air cleaner cap sub-assembly from the air cleaner hose.

Hide Display 17701 6.REMOVE AIR CLEANER CASE SUB-ASSEMBLY

Click hereEngine / Hybrid System>NR Series (ENGINE MECHANICAL)>ENGINE ASSEMBLY>REMOVAL202304,999999,_51,_080739,_0391935,RM100000002BCMQ_01_0370,

Hide Display 89661 7.REMOVE ECM

HINT:: When replacing the ECM, use the GTS to save "Heavy Knock History" and then upload it to the new ECM.; Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>REGISTRATION201906,999999,_51,_080777,_0393969,RM100000001I1RD,

Disengage the claw and 2 guides to remove the No. 1 relay block cover from the No. 1 engine room relay block and No. 1 junction block assembly.

Raise the 2 levers while pushing the locks on the levers, and disconnect the 2 ECM connectors.

NOTICE:: After disconnecting the ECM connectors, make sure that dirt, water or other foreign matter does not contact the connecting parts of the ECM connectors.

Disconnect the 3 connectors from the No. 1 engine room relay block and No. 1 junction block assembly.

Disengage the 2 claws to separate the engine wire from the No. 1 engine room relay block and No. 1 junction block assembly.

Remove the bolt, nut and ECM.

NOTICE:: If the ECM has been struck or dropped, replace it.

Hide Display 89667E 8.REMOVE NO. 1 ECM BRACKET

Remove the 2 screws and No. 1 ECM bracket from the ECM.

Hide Display 89668 9.REMOVE NO. 2 ECM BRACKET

Remove the 2 screws and No. 2 ECM bracket from the ECM.