central locking system
08-29-2003, 10:31 PM
#1
Nordschleife Master
Thread Starter
central locking system
Ok heres the problem
when I put the key in the door lock and lock/unlock the door the other door doesn't lock/unlock, however when I get in and put the key in the ignition and then press the locking button just below heater controls both doors lock/unlock, now with that happening I can safely say it is not the locking motors, but does anyone have a suggestion?
when I put the key in the door lock and lock/unlock the door the other door doesn't lock/unlock, however when I get in and put the key in the ignition and then press the locking button just below heater controls both doors lock/unlock, now with that happening I can safely say it is not the locking motors, but does anyone have a suggestion?
08-30-2003, 12:56 AM
#3
Liz,
Have you tried unlocking the car from the passenger side?
If the system works normally or the driver door cycles, you probably have contact switch issues.
These can be fixed by cleaning the switches or replacing them.
HTH,
Scott
Have you tried unlocking the car from the passenger side?
If the system works normally or the driver door cycles, you probably have contact switch issues.
These can be fixed by cleaning the switches or replacing them.
HTH,
Scott
08-30-2003, 10:02 PM
#4
Nordschleife Master
Thread Starter
if I turn the round **** they auto locks dont cycle. if I lock it from the passanger door the auto locks dont cycle either.
now when you say switches in the door locks are we talking of the actual lock itself and the wires coming off the end, cause as far as I can tell these are only for the alarm, or is the actual lock actuator the switch and if so are you speaking of the 4 pole connection on the actuator cause it is clean.
any other suggestions
now when you say switches in the door locks are we talking of the actual lock itself and the wires coming off the end, cause as far as I can tell these are only for the alarm, or is the actual lock actuator the switch and if so are you speaking of the 4 pole connection on the actuator cause it is clean.
any other suggestions
08-31-2003, 03:33 PM
#6
Burning Brakes
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Hi Lizard,
Thanks again for help with my earlier door lock, window, sunroof, and starting problem. You pointed me to relay 6. That was the problem. It may have cascaded through the alarm. The relay was $29 from 928 Specialists. Some door lock problems came and went like your problem.
The Greg Nichols site refers to some small fuses.
Misalignment of the locks can cause problems.
It was so easy to swap out the relay, and fix the problem that I have not installed the ignition switch piece,... another usual suspect.
Let us know what you find!
Thanks again for help with my earlier door lock, window, sunroof, and starting problem. You pointed me to relay 6. That was the problem. It may have cascaded through the alarm. The relay was $29 from 928 Specialists. Some door lock problems came and went like your problem.
The Greg Nichols site refers to some small fuses.
Misalignment of the locks can cause problems.
It was so easy to swap out the relay, and fix the problem that I have not installed the ignition switch piece,... another usual suspect.
Let us know what you find!
08-31-2003, 03:46 PM
#7
Nordschleife Master
Thread Starter
thanx Thom, I will be checking that when I get home, I dont think it is the relay, and now I have to readjust the drivers door mech as I had it out checking the contacts, and I didn't get it 100%, so I am going to be doing that tomorrow, and I will also check the relay
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08-31-2003, 04:15 PM
#8
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Lizard,
I had similar problems with the locking system on my 928 and I replaced the central locking control module located behind the center console. I picked it up a used one from 928 Specialist. The module is a black box with a big connector that has about 10 pins on it.
Before replacing the module, I checked every contact, switch, fuse and adjustment associated with the locking system with no results. I even had gotten locked in the car and couldn't get out!
I had similar problems with the locking system on my 928 and I replaced the central locking control module located behind the center console. I picked it up a used one from 928 Specialist. The module is a black box with a big connector that has about 10 pins on it.
Before replacing the module, I checked every contact, switch, fuse and adjustment associated with the locking system with no results. I even had gotten locked in the car and couldn't get out!
09-01-2003, 12:54 AM
#9
Electron Wrangler
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Lizard,
The alarm connections on the end of the lock also control the central locking actuation - so check that they work right. see that you get the alarm activating/deactivating every time you turn the key (check the post LED) - if the central locks don't work but the alarm does - suggests a problem in the controller or the actuators/wiring. If it sometimes doesn't arm/disarm properly and this is when the central locking fails its probably the switch contacts. More likely though is a lock/actuator alignment issue - where it thinks its not locked, or it has real trouble locking. If you try to lock when the other door is open for example (so it cant lock) this cycling is whats supposed to happen - intended to indicate to you there is a problem causing it to be unable to lock (e.g. other door not fully closed).
Alan
The alarm connections on the end of the lock also control the central locking actuation - so check that they work right. see that you get the alarm activating/deactivating every time you turn the key (check the post LED) - if the central locks don't work but the alarm does - suggests a problem in the controller or the actuators/wiring. If it sometimes doesn't arm/disarm properly and this is when the central locking fails its probably the switch contacts. More likely though is a lock/actuator alignment issue - where it thinks its not locked, or it has real trouble locking. If you try to lock when the other door is open for example (so it cant lock) this cycling is whats supposed to happen - intended to indicate to you there is a problem causing it to be unable to lock (e.g. other door not fully closed).
Alan
09-01-2003, 01:32 AM
#10
Nordschleife Master
Thread Starter
Alan thanx for the responce, the alarm both activates and deactivates fine, I have confirmed this several times, the actuator on the driver side needs to be adjusted not a problem will be doing this tomorrow, but if I hit the button on the dash if they are unlocked they do lock, and if they are locked they unlock, if the door is open on either side then they do cycle closed open, I have pulled off the 10pin connector for the central locking system and all pins were fine no corrosion at all, so it might be the box that is dead, I will find out soon.
thanx again Colin J
thanx again Colin J
09-01-2003, 10:43 PM
#11
Nordschleife Master
Thread Starter
hey guys do you happen to have a copy of the factory wiring diagram for the central locking system scanned in as this would REALLY make this WAY easier for me
09-04-2003, 10:00 PM
#12
Burning Brakes
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Fuse No 1
Hi Lizard,
After I replaced relay 6, I still had intermittent problems. The locks would not always operate when I clicked the alarm remote. I cleaned fuse no 1 with scotchbrite, cycled it in and out of the fuse slot several times, coated fuse with dielectric grease, put in fuse. Locks have worked properly with the remote the last few times.
How is it coming for you?
After I replaced relay 6, I still had intermittent problems. The locks would not always operate when I clicked the alarm remote. I cleaned fuse no 1 with scotchbrite, cycled it in and out of the fuse slot several times, coated fuse with dielectric grease, put in fuse. Locks have worked properly with the remote the last few times.
How is it coming for you?
09-04-2003, 10:19 PM
#13
Nordschleife Master
Thread Starter
ok well relay #6 has nothing to do w/ the central locking system of my car,
Also Alan, the wire on the end of the lock Cylinder ONLY activates/deactivates the alarm, the central locking system is actuated by the lock actuators themselves, if they sence 15 deg of movement they then cycle the other side, I have checked the small milliamp fuses behind the glovebox and they were fine, and now today, I go out to my car and go for a drive and come home I open my drivers door to get out, it was unlocked but passangers was locked, and they cycled unlocked, then I closed the door and locked the car and they are working fine, they stopped working a couple of times but they started working next try, I am thinking the switch that sences when the door is closed either has a loose wire or is malfunctioning, I haven't had a chance to really get on top of it yet, but I do have another question
Fuse #1 is it supposed to be a constant power?
Also Alan, the wire on the end of the lock Cylinder ONLY activates/deactivates the alarm, the central locking system is actuated by the lock actuators themselves, if they sence 15 deg of movement they then cycle the other side, I have checked the small milliamp fuses behind the glovebox and they were fine, and now today, I go out to my car and go for a drive and come home I open my drivers door to get out, it was unlocked but passangers was locked, and they cycled unlocked, then I closed the door and locked the car and they are working fine, they stopped working a couple of times but they started working next try, I am thinking the switch that sences when the door is closed either has a loose wire or is malfunctioning, I haven't had a chance to really get on top of it yet, but I do have another question
Fuse #1 is it supposed to be a constant power?
09-04-2003, 10:51 PM
#14
Burning Brakes
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Lizard,
The faulty relay 6 caused all kinds of door lock problems in my car. When I replaced the relay most lock problems went away.
I do not know if power is constant to fuse 1. Have you polished and coated the fuse and contacts? Again, that is working for me so far. That could be all it takes to fix your problem. I had similar symptoms.
My Porsche mechanic diagnosed a bad ground as a likely suspect. That was not it for me.
I installed the ignition switch piece. That was not it for me.
The faulty relay 6 caused all kinds of door lock problems in my car. When I replaced the relay most lock problems went away.
I do not know if power is constant to fuse 1. Have you polished and coated the fuse and contacts? Again, that is working for me so far. That could be all it takes to fix your problem. I had similar symptoms.
My Porsche mechanic diagnosed a bad ground as a likely suspect. That was not it for me.
I installed the ignition switch piece. That was not it for me.
09-05-2003, 12:00 AM
#15
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Lizard,
Check the pin switch in the door jam to make sure that it is making good contact. I found that mine needed cleaning and it also caused all kinds of crazy locking and interior lighting problems.
Check the pin switch in the door jam to make sure that it is making good contact. I found that mine needed cleaning and it also caused all kinds of crazy locking and interior lighting problems.