No start and alarm goes off..

[EODguy]

Are your neighbors back on speaking terms now? Took a month for mine to get over their butthurt

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[2555 john]

Originally Posted by andrewwynn

Good switch is a known issue for random alarm. Alarm should be deactivated when door is open but it wasn't clear if key was used to unlock door or remote so whichever it was try the other.

Ok used key fob to open door...Pressed it twice to unlock all doors before I tried to start it...

Will show these posts to my mechanic..Not familiar with scanners or electric..

Will keep posted...

[wpoll]

Originally Posted by EODguy

Are your neighbors back on speaking terms now? Took a month for mine to get over their butthurt

For some reason, mine only ever went off at work. I think it was related to heat, sitting in the hot sun during the day.

[wpoll]

Originally Posted by 2555 john

Ok used key fob to open door...Pressed it twice to unlock all doors before I tried to start it...

Will show these posts to my mechanic..Not familiar with scanners or electric..

Will keep posted...

Here's some info that might help...

Central Body Electronics...
http://www.rfdm.com/Daniel/MRoadster...lectronics.pdf

EWS System...
http://www.rfdm.com/Daniel/MRoadster...us/pdf/EWS.pdf

[Qsilver7]

Originally Posted by 2555 john

Just had my battery changed on my 04 X5 4.4.....
car was fine for four days..Go to start it last night and would not start and alarm goes off...

I had this no start problem 6 months ago...From what I understand a computer board was changed which is located under the dashboard...

Same thing a few weeks ago...No start and alarm goes off....Changed battery..Fine for four days than the same nonsense..

Getting frustrated..

I know you just changed your battery...but I'd suggest double checking/verify that it (the battery) is still around 12 volts (or at least at or above 11.89 volts). What if you have something draining the vehicle's battery?

Also verify that both negative and positive battery terminals are snug around each battery terminal's post. Sometimes a new battery doesn't get one of the terminals fitted properly.

The above suggestions are based on that you wrote you have a NO START situation and the ALARM SIREN is going off. The alarm siren has its' own internal battery...so if the car is disconnected from its power source (like in a theft attempt) the alarm siren can still sound off. But if the car's battery is discharged...and the car is armed...this can trigger a false alarm as the low voltage situation makes the alarm think someone is disconnecting a power source.


The above situation can also come from the alarm siren's internal battery being discharged or failing due to the car's battery not being able to keep it charged up. Again, this could cause false triggering.

[andrewwynn]

That's some good advice also confirm you have voltage at the B+ jump start terminal (no blown BST).


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