Immobiliser light
03-07-2012, 03:35 AM
#1
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Immobiliser light
Yesterday and today the immobiliser light flashed on and off for approx one minute after starting the engine. Everything appeared to be working fine. Is this a fault? Any one any ideas? Ta
03-07-2012, 07:39 AM
#3
Pro
Had that happen to me once before too. Battery had barely enough to get the car started. Immo light started flashing. I turned the car off, started it again with a second external battery hooked up and the light didn't come back. No side effects afterwards. Had to buy a new car battery anyways but it seems that the momentary low voltage or weak charging might have caused it to flash.
Just a guess though.
Ed
Just a guess though.
Ed
03-07-2012, 02:12 PM
#4
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03-07-2012, 02:20 PM
#5
Nordschleife Master
Every once in a while, maybe 2 times a year, if that. I see the same thing. I just cycle the alarm, and it goes away for another 8-9 months.
I think the circuitry hiccups now and then.
If it registers a code, then a Hammer can pull it, I don't think my Actron can get to it, since it will not trigger a CEL.
I was told that an alarm code will be stored if someone tries to start the car before the immobilizer has been disabled. Nothing to worry about.
I think the circuitry hiccups now and then.
If it registers a code, then a Hammer can pull it, I don't think my Actron can get to it, since it will not trigger a CEL.
I was told that an alarm code will be stored if someone tries to start the car before the immobilizer has been disabled. Nothing to worry about.
03-07-2012, 02:22 PM
#6
Every once in a while, maybe 2 times a year, if that. I see the same thing. I just cycle the alarm, and it goes away for another 8-9 months.
I think the circuitry hiccups now and then.
If it registers a code, then a Hammer can pull it, I don't think my Actron can get to it, since it will not trigger a CEL.
I was told that an alarm code will be stored if someone tries to start the car before the immobilizer has been disabled. Nothing to worry about.
I think the circuitry hiccups now and then.
If it registers a code, then a Hammer can pull it, I don't think my Actron can get to it, since it will not trigger a CEL.
I was told that an alarm code will be stored if someone tries to start the car before the immobilizer has been disabled. Nothing to worry about.
Gordo
03-07-2012, 08:02 PM
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Update
Today turned the ignition, heard an unpleasant noise ( sounded like coming from under dash but not sure, it only lasted perhaps 0.5secs. Car started ok otherwise, but then I noticed the trip computer wasn't working (blank screen) for the rest of the journey. When I arrived at work, I turned off engine, then restarted: everything seems to be working normally again. 
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03-07-2012, 08:31 PM
#8
I had continuing odd problems caused by the immobilzer; car would sometimes not lock, sometimes one of the turn signals would stay on (either the left or the right). Always started okay, but the problems became more frequent.
After trial and error diagnosis, turned out to be the ignition keyway....became so worn that the car did not know if the key was in the ignition or had been removed.
Gordo
After trial and error diagnosis, turned out to be the ignition keyway....became so worn that the car did not know if the key was in the ignition or had been removed.
Gordo
03-07-2012, 10:33 PM
#9
RL Technical Advisor
One more thing,....
These cars are VERY sensitive about system voltages so its prudent to check some things when one has some electrical issues. I'd recommend checking alternator outputs (at 2K RPM) to ensure the voltage regulator is OK, as well as battery and engine grounds.
These cars are VERY sensitive about system voltages so its prudent to check some things when one has some electrical issues. I'd recommend checking alternator outputs (at 2K RPM) to ensure the voltage regulator is OK, as well as battery and engine grounds.
