Initialization [08/2015 - 08/2016]

WARNING: This page is about a different car, the 2018 Toyota Corolla, 2017 Toyota Corolla, 2016 Toyota Corolla, 2015 Toyota Corolla, and 2014 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED/RECONNECTED

Necessary Procedures	Effect/Inoperative Function When Necessary Procedures are not Performed	Link
Servo motor initialization	Air conditioning system (for Automatic Air Conditioning System)	Refer to INITIALIZATION [08/2013 - ]

NOTE:

After the ignition switch is turned off, the radio and display receiver assembly or the navigation receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 90 seconds before disconnecting the cable from the negative (-) battery terminal.

PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

Replacement Part	Necessary Procedure	Effect/Inoperative Function when Necessary Procedures are not Performed	Link
ECM	Vehicle Identification Number (VIN) registration	MIL comes on	Refer to REGISTRATION [08/2013 - ] for 2ZR-FE Refer to REGISTRATION [08/2013 - ] for 2ZR-FAE
ECM	ECU communication ID registration (Immobiliser system)	Engine start function	Refer to REGISTRATION [08/2013 - ] 1 Refer to REGISTRATION [08/2013 - ] 2
Throttle body assembly Cleaning the deposits from the throttle body assembly Engine assembly Cylinder head sub-assembly Camshaft (for intake or exhaust camshaft) Camshaft timing gear assembly Camshaft timing exhaust gear assembly Piston or piston ring Mass air flow meter sub-assembly Fuel injector assembly Fuel pump Air fuel ratio sensor Heated oxygen sensor Engine coolant temperature sensor Spark plug Ignition coil assembly Air leaks from intake system Gas leaks from exhaust system Knock control sensor	Inspection after repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [08/2013 - 08/2016] for 2ZR-FE
Throttle body assembly Cleaning the deposits from the throttle body assembly Engine assembly Continuously variable valve lift controller assembly Cylinder head sub-assembly Camshaft housing sub-assembly Camshaft timing gear assembly Camshaft timing exhaust gear assembly Piston or piston ring Mass air flow meter sub-assembly Fuel injector assembly Fuel pump Air fuel ratio sensor Heated oxygen sensor Engine coolant temperature sensor Spark plug Ignition coil assembly Air leaks from intake system Gas leaks from exhaust system Knock control sensor	Inspection after repair	Poor idle, engine start function, etc.	Refer to INITIALIZATION [08/2013 - 08/2016] for 2ZR-FAE
Automatic transaxle assembly Engine assembly ECM	Reset memory	Large shift shock Deterioration of fuel efficiency	Refer to INITIALIZATION [08/2013 - 08/2016] for U341E
Continuously variable transaxle assembly ECM Oil pressure sensor Airbag sensor assembly (Yaw rate and acceleration sensor)	Reset memory Yaw rate and acceleration sensor (deceleration sensor zero point) calibration CVT oil pressure calibration	Large shift shock Deterioration of fuel efficiency	Refer to INITIALIZATION [08/2013 - 08/2016] for K313
Tire pressure warning ECU and receiver Tire pressure warning valve and transmitter	Transmitter ID registration Initialization	When DTC detection conditions of "transmitter ID not received" DTC are met, TPWS indicator blinks for 1 minute, and then illuminates. Tire pressure warning function	Refer to REGISTRATION [08/2013 - ] for Registration Refer to INITIALIZATION [08/2013 - ] for Initialization
Skid control ECU (brake actuator assembly) (w/ VSC)	Yaw rate and acceleration sensor zero point calibration and store system information.	VSC disabled or malfunctioning DTCs are output Slip indicator light illuminated ABS warning light illuminated	Refer to CALIBRATION [08/2015 - 08/2016]
Yaw rate and acceleration sensor (airbag sensor assembly)	Clearing zero point calibration data and system information. Yaw rate and acceleration sensor zero point calibration and store system information.		Refer to CALIBRATION [08/2015 - 08/2016]
Yaw rate and acceleration sensor (airbag sensor assembly)	Deceleration sensor zero point calibration and CVT oil pressure calibration (for continuously variable transaxle).		Refer to INITIALIZATION [08/2013 - 08/2016]
Power steering ECU assembly The electric power steering column sub-assembly	Torque sensor zero point calibration	DTCs are output Steering effort different between turning steering wheel left and right	Refer to CALIBRATION [08/2013 - ]
Power steering ECU assembly	Assist map writing	DTCs are output EPS warning light illuminated	Refer to CALIBRATION [08/2013 - ]
Door control transmitter1 Door control receiver1	Registration of Recognition Code	Wireless door lock control system (w/o Smart Key System)	Refer to REGISTRATION [08/2013 - ]
Transponder key ECU assembly*1	Key code registration ECU communication ID registration	Engine start	Refer to REGISTRATION [08/2013 - ]
Certification ECU (smart key ECU assembly)2 ID code box (immobiliser code ECU)2 Steering lock ECU (steering lock actuator assembly)2 ECM2 Electrical key transmitter sub-assembly*2	Code registration (Immobiliser system)	Wireless door lock control system (w/ Smart Key System) Smart key system Engine start Steering lock system	Refer to REGISTRATION [08/2013 - ]
Occupant classification ECU Front passenger seat	Zero point calibration and sensitivity check (Occupant classification system)	Occupant classification system Passenger airbag ON/OFF indicator Airbag system (Front passenger side) Seat belt warning system (Front passenger)	Refer to INITIALIZATION [08/2013 - 08/2016]
Recirculation damper servo sub-assembly Air mix damper servo sub-assembly Mode damper servo sub-assembly	Initialization servo motor (Air conditioning system (for Automatic Air Conditioning System))	DTCs are output	Refer to INITIALIZATION [08/2013 - ]
Door window regulator assembly Power window regulator motor assembly (for driver door) Door glass Door glass run	Initialize power window control system	Auto up and down function Jam protection function Remote control function Key-off operation function	Refer to INITIALIZATION [08/2013 - 08/2016]
Sliding roof ECU (sliding roof drive gear sub-assembly) Sliding roof glass sub-assembly Sliding roof drive cable sub-assembly	Initialize sliding roof system	Auto operation function Jam protection function Key-off operation function Sliding roof open warning function	Refer to INITIALIZATION [08/2013 - ]

*1: w/o Smart Key System
*2: w/ Smart Key System