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Post Info TOPIC: Immobilizer to ECU protocol for KTM 990 (Keihin )


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Immobilizer to ECU protocol for KTM 990 (Keihin )

Hi guys,


I have two  KTM990 bikes, one from 2008 one from 2011. The 2011 one has an immobilizer and I saw a lot of reports that the immobilizer antenna (or just the immobilizer) crashes and will let the bike non operational. As I am doing quite long trips in remote places (last time I was in Iran) I would like to get rid of the immobilizer so that it is taken out from the equation. I checked the schematics and there seems to be a CAN bus between the ECU and immobilizer but the rest of the bike is not using the CAN.

So I hooked a can2usb on the bus device (the CAN_H and CAN_L are also available in the diag connector) to see what is going on there. There are few messages exchanged on the bus since I power on the bike and that is it.

Now the question is: How to decode those messages as they seem to be a challenge-response communication? Any help or info on the Keihin protocol(?) over CAN bus?

(1489060427.468470) can0 4EA#0000000009000000
(1489060427.543331) can0 4E8#558789ACE137C26E
(1489060427.734209) can0 4E9#A52A3A041504B2E7
(1489060427.736584) can0 4E8#5AFAE3ED09469506
(1489060427.781334) can0 4E9#5578A0D00A8853AA
(1489060427.793326) can0 4E8#A5F2CA437923CEB9
(1489060427.794460) can0 4E9#00004B68AEA4C946
(1489060429.788344) can0 4EA#0000000000000000


Thanks for any hint.



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