Vehilcles have many options in one type of ECM. So automatic recognition function is applied. The options that can be recognized are ISG and DPF. When a ECM is installed to vehicle, these options recognition are performed by the ECM automatically as checking whether ground line is grounded or opened every IG KEY ON process.

If this recognition is not fulfilled well or any error occurs during the process, engine power generation is not sufficient and glow lamp on cluster blinks.

If a system is installed, the ECM connector is grounded.

Else is opened (no wire exists).

- ISG : ECM connector K terminal 89 is grounded.

- None ISG : ECM connector K terminal 89 is opened.(no wiring exists)

- DPF : ECM connector K terminal 56 is grounded.

- None DPF : ECM connector K terminal 56 is opened.(no wiring exists)