ECD SYSTEM PRECAUTION

INITIALIZATION AND REGISTRATION

Note:

When the ECM and/or the other component(s) mentioned below are replaced, perform the following utility items, referring to the corresponding Initialization and Registration procedure.
If the ECM is replaced, register the ECU communication ID for Engine Immobiliser System (Refer to the Service Bulletin for Registration).

When the cable is disconnected from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected.


System Name	See Procedure
Stop and Start System	Click here Click here
Simple Intelligent Parking Assist System
Power Door Lock Control System

Tip:

When the ECM and other component(s) are replaced at the same time, perform the following utility items by following the instructions shown on the GTS display, starting with the ECM.


Replacement Part	Utility Item	See page
ECM	Learning Values Save	Click here
ECM	Learning Values Write	Click here
Injector Assembly	Injector Compensation	Click here
Fuel Supply Pump Assembly	Supply Pump Learning Value Reset	Click here
Exhaust Manifold Converter Sub-assembly (Catalytic Converter)	DPF History Information Reset	Click here
	NOx Storage Catalyst Learning Value Reset	Click here
Air Fuel Ratio Sensor	O2 Sensor Learning Value Reset	Click here
Mass Air Flow Meter Sub-assembly	Air Flow Meter Learning Value Reset	Click here
EGR Valve Assembly	EGR Learning Value Reset	Click here
Differential Pressure Sensor	Differential Pressure Learning Value Reset	Click here
Swirl Control Valve	Swirl Valve Learning Value Reset	Click here
Turbo Pressure Sensor Assembly	Upstream Turbine Pressure Learning Value Reset	Click here
Pressure Discharge Valve	Fuel PCV Compensation Value Reset	Click here
Engine Assembly	Injector Compensation	Click here

Tip:

When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.
After replacing injector assembly, perform the "Injector Compensation" function using the GTS.
After replacing the engine assembly, perform the "Injector Compensation" function using the GTS.

INJECTOR COMPENSATION CODE

*a	Example
*b	Injector Compensation Code

Tip:

Each injector assembly has different fuel injection characteristics. In order to optimize the fuel injections, the ECM uses the compensation codes to balance the different fuel injections between each injector assembly.

Injector compensation codes are 7-digit, alphanumeric values printed on the head of each injector assembly.

Note:

If an incorrect injector compensation code is input into the ECM, the engine assembly may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.

FOR USING GTS

CAUTION:

Read the instruction manuals before using the GTS.
Prevent the GTS cable from being caught on the pedals, shift lever and steering wheel when driving with the GTS connected to the vehicle.
When driving the vehicle for testing purposes and using the GTS, two persons are required. One for driving the vehicle, and the other for operating the GTS.

IGNITION SWITCH EXPRESSIONS

The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.


Expression	Ignition Switch (Position)	Engine Switch (Condition)
Ignition switch off	LOCK	Off
Ignition switch ACC	ACC	On (ACC)
Ignition switch ON	ON	On (IG)
Engine start	START	Start