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Immobilizer Issue ?

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Old 05-06-2013, 02:22 AM
  #16  
IainM
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The latch is behind all the trim work down by the battery. Its quick work in and out. The tricky part is knowing when it's bent back. I was tracking down a battery leak so I had a set up to measure amperes out of the battery and could see the current go down to 20mA from 120mA when the trunk light went out.

Others have used smart phone video cameras to record what happens when the trunk closes...

A good eye could probably bump it in a bit just right.

Schtoot: it doesn't look bent, it's just been eased past threshold a bit. Just make the switch actuation a little earlier, you'll be fine.

Last edited by IainM; 05-06-2013 at 02:24 AM. Reason: note
Old 05-13-2013, 07:44 PM
  #17  
Shtootgart
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Thanks Iain, wasn't that but I opened the door with the key while the car was armed and the alarm went off making me think that the key and computer may not be recognizing each other
Old 05-14-2013, 12:23 AM
  #18  
nine9six
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Hi Guys, looking for some insight into a new issue with my 993. Car used to start every time I turned the key all the way as it is supposed to. Lately it has stopped turning over so I have had to turn my key to the "ON" position, press the remote button until I see the red door panel indicator flash twice then start the car.
Battery in remote is new. Is this a problem with the immobilizer ?
After rereading your statement, this sounds like no problem at all. If you allow your car to sit for awhile after unlocking the vehicle, it is supposed to self prime the immobilizer after a certain period of time.

If the car is locked and alarmed, and you hit the remote, insert the key, the car should start.

If you unlock the car and get side tracked and do not immediately start the car, and it auto self primes itself, you will need to hit the fob button again to start the car. This sounds like what is occuring...

I hope this helps clarify things for you.
Cheers
Old 05-14-2013, 01:18 PM
  #19  
993/907
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[QUOTE=nine9six;10460177]After rereading your statement, this sounds like no problem at all. If you allow your car to sit for awhile after unlocking the vehicle, it is supposed to self prime the immobilizer after a certain period of time."

Sounds correct to me also; and if you unlock car with fob button but don't open a door, doors will re-lock after a minute or two.

Gordo
Old 05-14-2013, 06:32 PM
  #20  
NC TRACKRAT
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No, guys...I don't think so. Re-read the OP's Post #3. He says that, after unlocking the car with the remote, he gets in and turns the key in the ignition. (correct procedure) It used to start but now it doesn't.
Old 05-14-2013, 07:16 PM
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timothymoffat
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And for the record, 95s did have the immobilizer later in the production run. My April 95 car is so equipped.
Old 05-14-2013, 08:41 PM
  #22  
993/907
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Originally Posted by timothymoffat
And for the record, 95s did have the immobilizer later in the production run. My April 95 car is so equipped.
Tim, from previous chatter it seems your car build date is about the time the immobilzer was added by the factory....yours still have the basket handle?

My May build car has the immob, no handle. (Happy 18th birthday to mine .... thought it was August build but found it was May instead).

Gordo

Last edited by 993/907; 05-18-2013 at 02:29 PM.
Old 05-14-2013, 08:47 PM
  #23  
timothymoffat
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Originally Posted by 993/907
Tim, from previous chatter it seems your car build date is about the time the immobilzer was added by the factory....yours still have the basket handle?

My August car has the immob, no handle.

Gordo
It seems that "late 95s" had most if not all of the changes that many think we're introduced for the 1996 model year (switchover sometime during 08/95 build) except for the VarioRam.

My April 95 build has later style upper window mounted 3rd brake light (no basket handle), hardback sport seats (instead of the earlier and IMO better soft back sport seats), immobilizer, later style heater/blower motor, steering rack brace, and the later style plug for OBD on the inside. For better or worse lol.
Old 05-14-2013, 09:08 PM
  #24  
993/907
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Originally Posted by NC TRACKRAT
No, guys...I don't think so. Re-read the OP's Post #3. He says that, after unlocking the car with the remote, he gets in and turns the key in the ignition. (correct procedure) It used to start but now it doesn't.
I was assuming the OP would unlock the doors but not try to start the car right away; wrong assumption apparently.

I had similar problem a few years ago....ended up replacing immobilizer module, ignition switch, ignition keyway and steering wheel lock to get it all sorted out.

Here's hoping it's something quick and easy for the OP instead.

Gordo
Old 05-18-2013, 02:00 PM
  #25  
Shtootgart
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Thanks for the info. I think it may be at least one of things 993/907 posted. Frustrating as hell
Old 05-18-2013, 02:35 PM
  #26  
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Shtootgart, most of my driving is very short trips; at 80,000 miles the key/keyway might have been as worn as a several hundred thousand mile car.
And I am much more gentle with the key action since I had the repairs done.

Gordo
Old 05-18-2013, 08:15 PM
  #27  
nine9six
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Originally Posted by NC TRACKRAT
No, guys...I don't think so. Re-read the OP's Post #3. He says that, after unlocking the car with the remote, he gets in and turns the key in the ignition. (correct procedure) It used to start but now it doesn't.
I understood what he worte, but I was only trying to clarify a caveat the maybe ha had not considered. Just trying to cover the bases of understanding.

TRACKRAT, you're a knowledable guy...Do you have any suggestions to offer to the posters plight? After reading your post, I'm thinking maybe the ignition mechanism as mentioned by Gordo, or as you indicated the clutch micro.

Last edited by nine9six; 05-19-2013 at 12:01 PM.
Old 05-19-2013, 01:24 AM
  #28  
Shtootgart
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If the immobilizer blocks the car from starting, do all the indicator lights still illuminate ? Mine all do but just trying to isolate what it might be. I'm leaning toward ignition. Might have t bring it in because I'm afraid it might leave me stranded. At times now, even with the two blinks of the light at the "ON" position, it still won't turn over.
Old 05-19-2013, 01:44 PM
  #29  
tcsracing1
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Originally Posted by timothymoffat
And for the record, 95s did have the immobilizer later in the production run. My April 95 car is so equipped.
very interesting.
There is a local one owner 95 in my area and im curious to see what it is.
Old 05-19-2013, 03:09 PM
  #30  
993/907
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Originally Posted by Shtootgart
If the immobilizer blocks the car from starting, do all the indicator lights still illuminate ? Mine all do but just trying to isolate what it might be. I'm leaning toward ignition. Might have t bring it in because I'm afraid it might leave me stranded. At times now, even with the two blinks of the light at the "ON" position, it still won't turn over.
Dash lights all worked normally when immob on mine was failing.
Car would always unlock okay but often had trouble locking.
Would randomly take several tries with the fob to enable the ignition.
Towards the end the immob would leave one or the other parking lights on when locked; cycling the fob a few times would clear that.

Gordo


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