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'94 E36 Double Lock Trouble

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  #1  
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Jeff Strickland
 
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Default '94 E36 Double Lock Trouble - 09-16-2009 , 08:56 PM






You are _supposed_ to be able to lock and unlock the doors by using the key
in the trunk lid.

My car ONLY does this if I do not open and close the doors first. I can
cycle the ignition by reaching through the window, adn then the trunk lock
will operate the remaining locks on the car. Unfortunately, one would
normally turn the ignition off, open the door to get out, close the door,
then go to the trunk and do stuff, and lock the car when finished.

Actually, my car locks the doors from the trunk lock, but it only unlocks
them from the doors. I cannot unlock the doors from the trunk lock UNLESS I
get out of the car when I park it without opening the door.

I can LOCK the car from the trunk lock no matter how I get out of the car,
but I can only UNLOCK the car from the trunk lock if I climb out through a
window -- on my car, this is not all that difficult because I have a
convertible, but it can't be right.

If I climb out the window and lock the doors so that I can unlock them from
the trunk lock, then the Ignition Bypass circuit is disabled. It seems that
the door has to be opened and closed for the Ignition Bypass circuit to be
activated when the doors are locked. Since climbing out a window is not a
rational thing to do, then the ignition bypass works fine, but the doors do
not unlock from the trunk lock. I can't approach the car with packages and
put them in the trunk, then open the doors because they are already
unlocked -- I have to unlock the the trunk then unlock the doors, or unlock
the doors and the trunk unlocks automatically.

The mechanism in the trunk works right, so I think the central locking
module must be hosed up somehow. If the doors remain closed, the trunk will
lock and unlock the doors, but if the doors are opened then closed, the
truck will lock but not unlock the doors.

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  #2  
Old   
D 2
 
Posts: n/a

Default Re: '94 E36 Double Lock Trouble - 09-16-2009 , 09:03 PM






Jeff Strickland wrote:
Quote:
You are _supposed_ to be able to lock and unlock the doors by using the key
in the trunk lid.

My car ONLY does this if I do not open and close the doors first. I can
cycle the ignition by reaching through the window, adn then the trunk lock
will operate the remaining locks on the car. Unfortunately, one would
normally turn the ignition off, open the door to get out, close the door,
then go to the trunk and do stuff, and lock the car when finished.

Actually, my car locks the doors from the trunk lock, but it only unlocks
them from the doors. I cannot unlock the doors from the trunk lock UNLESS I
get out of the car when I park it without opening the door.

I can LOCK the car from the trunk lock no matter how I get out of the car,
but I can only UNLOCK the car from the trunk lock if I climb out through a
window -- on my car, this is not all that difficult because I have a
convertible, but it can't be right.

If I climb out the window and lock the doors so that I can unlock them from
the trunk lock, then the Ignition Bypass circuit is disabled. It seems that
the door has to be opened and closed for the Ignition Bypass circuit to be
activated when the doors are locked. Since climbing out a window is not a
rational thing to do, then the ignition bypass works fine, but the doors do
not unlock from the trunk lock. I can't approach the car with packages and
put them in the trunk, then open the doors because they are already
unlocked -- I have to unlock the the trunk then unlock the doors, or unlock
the doors and the trunk unlocks automatically.

The mechanism in the trunk works right, so I think the central locking
module must be hosed up somehow. If the doors remain closed, the trunk will
lock and unlock the doors, but if the doors are opened then closed, the
truck will lock but not unlock the doors.





Dump it in a river and buy a Kia - they have remote keyless entry.

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  #3  
Old   
Jeff Strickland
 
Posts: n/a

Default Re: '94 E36 Double Lock Trouble - 09-16-2009 , 10:00 PM



"D 2" <nope (AT) gmail86 (DOT) com> wrote

Quote:
Jeff Strickland wrote:
You are _supposed_ to be able to lock and unlock the doors by using the
key in the trunk lid.

My car ONLY does this if I do not open and close the doors first. I can
cycle the ignition by reaching through the window, adn then the trunk
lock will operate the remaining locks on the car. Unfortunately, one
would normally turn the ignition off, open the door to get out, close the
door, then go to the trunk and do stuff, and lock the car when finished.

Actually, my car locks the doors from the trunk lock, but it only unlocks
them from the doors. I cannot unlock the doors from the trunk lock UNLESS
I get out of the car when I park it without opening the door.

I can LOCK the car from the trunk lock no matter how I get out of the
car, but I can only UNLOCK the car from the trunk lock if I climb out
through a window -- on my car, this is not all that difficult because I
have a convertible, but it can't be right.

If I climb out the window and lock the doors so that I can unlock them
from the trunk lock, then the Ignition Bypass circuit is disabled. It
seems that the door has to be opened and closed for the Ignition Bypass
circuit to be activated when the doors are locked. Since climbing out a
window is not a rational thing to do, then the ignition bypass works
fine, but the doors do not unlock from the trunk lock. I can't approach
the car with packages and put them in the trunk, then open the doors
because they are already unlocked -- I have to unlock the the trunk then
unlock the doors, or unlock the doors and the trunk unlocks
automatically.

The mechanism in the trunk works right, so I think the central locking
module must be hosed up somehow. If the doors remain closed, the trunk
will lock and unlock the doors, but if the doors are opened then closed,
the truck will lock but not unlock the doors.






Dump it in a river and buy a Kia - they have remote keyless entry.

Kia? Ain't happening. My locks work fine, if I don't open the doors first.
Actually, my locks work fine, it's the unlocking that gives me trouble.

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  #4  
Old   
Dave Plowman (News)
 
Posts: n/a

Default Re: '94 E36 Double Lock Trouble - 09-17-2009 , 04:27 AM



In article <h8s1mt$cjj$4 (AT) news (DOT) eternal-september.org>,
Jeff Strickland <crwlrjeff (AT) yahoo (DOT) com> wrote:
Quote:
The mechanism in the trunk works right, so I think the central locking
module must be hosed up somehow. If the doors remain closed, the trunk
will lock and unlock the doors, but if the doors are opened then
closed, the truck will lock but not unlock the doors.
Seems a fair guess. Presumably it did once work correctly? Are there any
aftermarket bits fitted like an alarm or immobiliser? But the first thing
I'd try would be to clean the controller connector. After that replace it
- shouldn't be too difficult to get a used one.

--
*Stable Relationships Are For Horses. *

Dave Plowman dave (AT) davenoise (DOT) co.uk London SW
To e-mail, change noise into sound.

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  #5  
Old   
R. Mark Clayton
 
Posts: n/a

Default Re: '94 E36 Double Lock Trouble - 09-17-2009 , 11:02 AM



"Jeff Strickland" <crwlrjeff (AT) yahoo (DOT) com> wrote

Quote:
You are _supposed_ to be able to lock and unlock the doors by using the
key in the trunk lid.

My car ONLY does this if I do not open and close the doors first. I can
cycle the ignition by reaching through the window, adn then the trunk lock
will operate the remaining locks on the car. Unfortunately, one would
normally turn the ignition off, open the door to get out, close the door,
then go to the trunk and do stuff, and lock the car when finished.

Actually, my car locks the doors from the trunk lock, but it only unlocks
them from the doors. I cannot unlock the doors from the trunk lock UNLESS
I get out of the car when I park it without opening the door.

I can LOCK the car from the trunk lock no matter how I get out of the car,
but I can only UNLOCK the car from the trunk lock if I climb out through a
window -- on my car, this is not all that difficult because I have a
convertible, but it can't be right.

If I climb out the window and lock the doors so that I can unlock them
from the trunk lock, then the Ignition Bypass circuit is disabled. It
seems that the door has to be opened and closed for the Ignition Bypass
circuit to be activated when the doors are locked. Since climbing out a
window is not a rational thing to do, then the ignition bypass works fine,
but the doors do not unlock from the trunk lock. I can't approach the car
with packages and put them in the trunk, then open the doors because they
are already unlocked -- I have to unlock the the trunk then unlock the
doors, or unlock the doors and the trunk unlocks automatically.

The mechanism in the trunk works right, so I think the central locking
module must be hosed up somehow. If the doors remain closed, the trunk
will lock and unlock the doors, but if the doors are opened then closed,
the truck will lock but not unlock the doors.





Had something similar on a Cavalier many years ago.

One of the switches was faulty meaning it was on all the time. Certainly
sounds like a duff switch / connection somewhere - my guess on the driver's
door (what happens if you exit passenger side?)

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  #6  
Old   
Jeff Strickland
 
Posts: n/a

Default Re: '94 E36 Double Lock Trouble - 09-17-2009 , 11:32 AM



"Dave Plowman (News)" <dave (AT) davenoise (DOT) co.uk> wrote

Quote:
In article <h8s1mt$cjj$4 (AT) news (DOT) eternal-september.org>,
Jeff Strickland <crwlrjeff (AT) yahoo (DOT) com> wrote:
The mechanism in the trunk works right, so I think the central locking
module must be hosed up somehow. If the doors remain closed, the trunk
will lock and unlock the doors, but if the doors are opened then
closed, the truck will lock but not unlock the doors.

Seems a fair guess. Presumably it did once work correctly? Are there any
aftermarket bits fitted like an alarm or immobiliser? But the first thing
I'd try would be to clean the controller connector. After that replace it
- shouldn't be too difficult to get a used one.

No accessory items, such as alarm. BMWs have factory installed immobilizers,
so no need to add one.

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  #7  
Old   
Jeff Strickland
 
Posts: n/a

Default Re: '94 E36 Double Lock Trouble - 09-17-2009 , 11:40 AM



"R. Mark Clayton" <nospamclayton (AT) btinternet (DOT) com> wrote

Quote:
"Jeff Strickland" <crwlrjeff (AT) yahoo (DOT) com> wrote in message
news:h8s1mt$cjj$4 (AT) news (DOT) eternal-september.org...
You are _supposed_ to be able to lock and unlock the doors by using the
key in the trunk lid.

My car ONLY does this if I do not open and close the doors first. I can
cycle the ignition by reaching through the window, adn then the trunk
lock will operate the remaining locks on the car. Unfortunately, one
would normally turn the ignition off, open the door to get out, close the
door, then go to the trunk and do stuff, and lock the car when finished.

Actually, my car locks the doors from the trunk lock, but it only unlocks
them from the doors. I cannot unlock the doors from the trunk lock UNLESS
I get out of the car when I park it without opening the door.

I can LOCK the car from the trunk lock no matter how I get out of the
car, but I can only UNLOCK the car from the trunk lock if I climb out
through a window -- on my car, this is not all that difficult because I
have a convertible, but it can't be right.

If I climb out the window and lock the doors so that I can unlock them
from the trunk lock, then the Ignition Bypass circuit is disabled. It
seems that the door has to be opened and closed for the Ignition Bypass
circuit to be activated when the doors are locked. Since climbing out a
window is not a rational thing to do, then the ignition bypass works
fine, but the doors do not unlock from the trunk lock. I can't approach
the car with packages and put them in the trunk, then open the doors
because they are already unlocked -- I have to unlock the the trunk then
unlock the doors, or unlock the doors and the trunk unlocks
automatically.

The mechanism in the trunk works right, so I think the central locking
module must be hosed up somehow. If the doors remain closed, the trunk
will lock and unlock the doors, but if the doors are opened then closed,
the truck will lock but not unlock the doors.






Had something similar on a Cavalier many years ago.

One of the switches was faulty meaning it was on all the time. Certainly
sounds like a duff switch / connection somewhere - my guess on the
driver's door (what happens if you exit passenger side?)


Same thing ...

The car does not care which door is used to exit. Any door (there are only
two of them) that is opened then closed after turning the ignition to off
will defeat the trunk lock's ability to unlock the doors.

I can turn the ignition off, pull the key and use it to lock the door and
trunk, then take the key to the trunk to unlock the door. If I was actually
driving the car, then I'd turn the ignition off, open the door and get out,
close the door and lock it -- or go to the trunk and lock the car from
there. Upon returnig to the car, the trunk will not unlock the rest of the
car.

Whatever the problem is, it's in the logic not the physical parts.

PS
I can open the door, then turn the ignition off, and the unlocking from the
trunk still fails.

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