[Ovmsdev] Car remote unlock issue

Oliver Weidmann oliver at sdds.ch
Tue May 29 01:46:49 HKT 2012



Thanks for the quick answer. Bad luck if we can't tamper with the
immobilizer using the CAN. Very bad luck . 





Von: Mark Webb-Johnson [mailto:mark at webb-johnson.net] 
Gesendet: Montag, 28. Mai 2012 09:25
An: oliver at sdds.ch; OVMS Developers
Betreff: Fwd: [Ovmsdev] Car remote unlock issue




The non-US cars have an immobilizer that cannot be affected by the CAN bus.
Better security but it means that can bus lock/unlock cannot affect the
alarm or engine immobilizer. So, yes, expected behavior.


The US cars don't have an immobilizer, and lock/unlock on the CAN bus will
also enable/disable the alarm.


Regards, Mark.


Begin forwarded message:

From: "Oliver Weidmann" <oliver at sdds.ch>

Subject: [Ovmsdev] Car remote unlock issue

Date: 28 May, 2012 3:14:56 PM GMT+08:00

To: "'OVMS Developers'" <ovmsdev at lists.teslaclub.hk>

Reply-To: OVMS Developers <ovmsdev at lists.teslaclub.hk>

Hi everyone


When unlocking my Roadster (2.5, EU-Model) via the OVMS-Android-App, the car
acknowledges the unlock-command and unlocks the car (everything seems to
work like a charm so far).

But after the car is unlocked I cannot open one of the doors without
triggering the alarm. As soon as I open the driver or passenger door the
alarm goes off. Looks like the OVMS sends the unlock command to the
Roadster, but the Roadster does not disable the car alarm system after the


Is that a well knows behavior or can anyone confirm this issue?




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