ELECTRICAL 146 secret key for mutual authentication. If any one of EMS or ICU has different/ wrong secret key, vehicle will be locked (engine cannot be started). 4. If EMS or IBCM is changed in a vehicle, it is required pairing operation (EMS ECU & ICU programmed with same secret key) for proper mutual authentication. The pairing of EMS and Immobilizer can be done through diagnostic tester. 5. These E-keys are learned for that BCM_IMMO and are unique to that BCM_IMMO & vehicle. The E-key of other vehicles will not work with this BCM_IMMO and vice versa. 6. If anyone of the E-key is lost, it is recommended to approach TATA AUTHORIZED dealer for new E-key. It is possible to learn new keys with the help of diagnostic tester (Refer the key pairing procedure). IMMOBILIZER SYSTEM STATUS: If IGN is OFF/ACC, then BCM shall blink IMMO tell-tale with 0.2 second ON time and 0.8 second OFF time. If BCM is in sleep mode, then BCM shall blink IMMO tell-tale with 0.2 second ON time and 0.8 second OFF time. When the ignition key is turned to the “ON” position, If the status bulb goes OFF indicates that the system is working and the vehicle is unlocked (Engine is ready to start). If the status bulb is continuously ON, there may be something wrong with key or with the immobilizer system. If IGN is ON/ OFF and key learning is on-going, then BCM shall blink IMMO tell-tale with 0.1 second ON time and 0.4 second OFF time.
RkJQdWJsaXNoZXIy MTIwNTUz