How To Perform VIN Writing For Engine Control Module, Kos-Ecu And ETACS-Ecu: Notes

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

Follow the procedure below to register the VIN of the ETACS-ECU and the Keyless Operation System (KOS).

VIN is stored in the engine control module (ECM), ETACS-ECU, and the KOS-ECU. If the VIN is improperly erased, the engine warning lamp or the keyless operation system warning indicator illuminates, and the diagnostic trouble code is displayed. When the ECM, ETACS-ECU, and the KOS-ECU are replaced, follow the procedure below to write the VIN.

Fig 1: Engine Control Module VIN Writing Flow Chart

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE:

Chassis number writing of the OSS ECU and ESL ECU is described in "Keyless Operation System (KOS)". (Refer to ON-VEHICLE SERVICE < OSS-ECU > .)
Perform the variant coding of the ECM when the VIN or the vehicle identification number is registered to the ECM.