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).
Tech Tips
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 | |
Learning Values Write | ||
Injector Assembly | Injector Compensation | |
Fuel Supply Pump Assembly | Supply Pump Learning Value Reset | |
Exhaust Manifold Converter Sub-assembly (Catalytic Converter) | DPF History Information Reset | |
NOx Storage Catalyst Learning Value Reset | ||
Air Fuel Ratio Sensor | O2 Sensor Learning Value Reset | |
Mass Air Flow Meter | Air Flow Meter Learning Value Reset | |
EGR Valve Assembly | EGR Learning Value Reset | |
Differential Pressure Sensor | Differential Pressure Learning Value Reset | |
Swirl Control Valve | Swirl Valve Learning Value Reset | |
Turbo Pressure Sensor Assembly | Upstream Turbine Pressure Learning Value Reset | |
Pressure Discharge Valve | Fuel PCV Compensation Value Reset | |
Engine Assembly | Injector Compensation |
Tech Tips
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 |
Tech Tips
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 |