Central Locking Question
- Thread starter beak
- Start date
Assuming the loom of doom is ok then you need a passenger side door actuator.Right, when I unlock on the passengers side (with key) it unlocks both doors. If I do the same on the drivers side it only unlocks the drivers side.
What do I need to fix
TIA!
the loom of doom is the small loom runs from the car to your boot lid, there are several wires in there that become brittle, short out and cause havoc. By the sounds of it I don't think you have to worry about this.
Your airbag light is not connected to the door issue, most likely a seatbelt pre-tensioner circuit has been disturbed, you will need a code reader to reset, many members have them, what is your location and you'll maybe get a helping hand!
Hi
Having spent more than a hour or two fixing Z3 central locking faults the following may help you with the quick easy fixes.
A little bit about the Z3 central locking:
- All locks (drivers, passengers and boot/trunk) work the same. If you use the key to unlock anyone, all the others should unlock. Same for locking. So, locking the boot/trunk with your key will lock all doors.
- If one lock does not work when all the others do, then only fault find at the lock that is not working.
- The loom of boom impacts the operation of the boot/trunk locking only.
- Each door has two different sets of contact that need to be working correctly for the central locking to work at that door:
a) Door striker switch (open and closed contacts) located behind the door striker pin on the car jam. Its a little black square. It you need to replace it, remove one screw at a time as the backing plate will fall into the dark pit of despair if all screws are removed at the same time.
b) Door lock position (locked and unlocked contacts), part of the door actuator and hides behind the door handle deep in the door cavity
If no doors or boot/trunk work on the central locking, then that's a more in-depth topic.
Hope this helps
Regards
Muzz
Having spent more than a hour or two fixing Z3 central locking faults the following may help you with the quick easy fixes.
A little bit about the Z3 central locking:
- All locks (drivers, passengers and boot/trunk) work the same. If you use the key to unlock anyone, all the others should unlock. Same for locking. So, locking the boot/trunk with your key will lock all doors.
- If one lock does not work when all the others do, then only fault find at the lock that is not working.
- The loom of boom impacts the operation of the boot/trunk locking only.
- Each door has two different sets of contact that need to be working correctly for the central locking to work at that door:
a) Door striker switch (open and closed contacts) located behind the door striker pin on the car jam. Its a little black square. It you need to replace it, remove one screw at a time as the backing plate will fall into the dark pit of despair if all screws are removed at the same time.
b) Door lock position (locked and unlocked contacts), part of the door actuator and hides behind the door handle deep in the door cavity
If no doors or boot/trunk work on the central locking, then that's a more in-depth topic.
Hope this helps
Regards
Muzz
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On my Z3 it was the n/s door which wasn't working so that's why I went for the solenoid in that door.
Tony.
Tony.
Great info Muzz, thanks for posting
Nice info ....Thanks for sharing it may help a few
jakechan
Dedicated Member
- Joined
- Feb 6, 2015
- Points
- 39
Good info, do you have any ideas about increasing the range of the remote? It's not worth having when sometimes the door lock is within arms length by the time the bloody thing works!!
Davyhoogy
Zorg Guru (III)
Mine still doesnt work on the passenger side. Replaced the actuator from someone on here, worked once then stopped again
Think it's a key battery thing.
Good info Murray however the loom of doom has the potential to upset a few things, not just the boot lock.
Try changing battery in fob - mine's the same as the battery ages. With a new battery installed I can switch it on and off from inside the house with the car in the garage - accidentally at times!
Many of the Japan market Z3's have the Infrared Remote Central locking (check your Vin Decode for option 875) and not the RF Remote central locking. The Infrared system requires a line of sight to the clown nose on the bottom of the inside rear view mirror, so the range is very short. The RF system has a far greater range as it does not need the clear line of sight to the mirror. Its range is more dependent on battery condition.
Yes the Loom of doom also affects other systems, My comment was written from the perspective of the central locking system only.
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If the wires for the central locking short in the boot loom this doers affect the whole central locking system.
Hi Muzz,
Which INPA module do you use for this please? I don't believe it is accessible on early models but would love to be proven wrong!
UK models up to mid/late `98 were shipped in minus remote locking systems but with central locking. Remote systems, initially 3G EWS, were then installed as an optional extra by local dealer.
The only INPA fault codes I have been able to find on my '98 (Dec `97 build) are power on/off - have always been told that because they were not factory fitted other info was not available.
beak
Regular Member
- Joined
- Feb 8, 2017
- Points
- 14
- Model of Z
- 2.8
Ok, so here's my situation.. central locking only opens both doors (not boot) from the passenger door (key only, not even tried the remote). BUT the passenger door wont open till you've opened it from the inside, so something still locked.
boot doesnt respond to anything other than the key, directly.
boot doesnt respond to anything other than the key, directly.
jakechan
Dedicated Member
- Joined
- Feb 6, 2015
- Points
- 39
A somewhat related central locking question, has anyone installed an after market unit to eliminate remote or similar central locking problems? I'm looking at a unit which should improve my range issue, and also add flasher answer back. I need access to the "door lock unit" and the "hazard module". Where can I find these on my 2002 Z? These would also be used if fitting an alarm I assume.