Hi
I have a RHD 2003 petrol Almera 1.5S which I am told may have a Dongle unit. I need to change the ecu and immobiliser but will need a Dongle unit if it has one. My dealer cant tell me from the chassis + engine number + registration. He has sent me a page from the manual which says
Quote:
DONGLE
To further improve security against physical attack of the immobiliser control unit and antenna amplifier, some models incorporate a third unit known as the dongle. This unit prevents possible theft by substitution of the IMMU and ECCS ECM.
The dongle unit is installed in an area which is difficult to access and is connected in parallel with the radio.
When a new IMMU is first installed, it will interrogate the dongle unit to determine its ID code. On receipt of the ID code, the IMMU stores the code in its memory. Once in the IMMU memory, this code cannot be reset.
When the ignition is switched on, the IMMU sends an ID request to the dongle unit. On receipt of this request, the dongle unit sends its ID signal back to the IMMU to allow it to check the key ID.
If the dongle unit ID signal is not the same as that in the IMMU memory, (e.g. if the IMMU and ECM are substituted) the engine is prevented from starting.
Does anyone have a pic of a dongle and info where it is found? The breakers yard doesn't know what it is looking for
Also can I use a doner ecm + immobiliser + key transponder in my existing key or must I also have the doner BCM/SEC
I have a RHD 2003 petrol Almera 1.5S which I am told may have a Dongle unit. I need to change the ecu and immobiliser but will need a Dongle unit if it has one. My dealer cant tell me from the chassis + engine number + registration. He has sent me a page from the manual which says
Quote:
DONGLE
To further improve security against physical attack of the immobiliser control unit and antenna amplifier, some models incorporate a third unit known as the dongle. This unit prevents possible theft by substitution of the IMMU and ECCS ECM.
The dongle unit is installed in an area which is difficult to access and is connected in parallel with the radio.
When a new IMMU is first installed, it will interrogate the dongle unit to determine its ID code. On receipt of the ID code, the IMMU stores the code in its memory. Once in the IMMU memory, this code cannot be reset.
When the ignition is switched on, the IMMU sends an ID request to the dongle unit. On receipt of this request, the dongle unit sends its ID signal back to the IMMU to allow it to check the key ID.
If the dongle unit ID signal is not the same as that in the IMMU memory, (e.g. if the IMMU and ECM are substituted) the engine is prevented from starting.
Does anyone have a pic of a dongle and info where it is found? The breakers yard doesn't know what it is looking for
Also can I use a doner ecm + immobiliser + key transponder in my existing key or must I also have the doner BCM/SEC