Central Locking Not Working

[Guest Brick-IT]

Hi guys,

 

Now that the engine is running properly I have turned my attention to the bodywork. I have noticed though that the central locking is not working. I have a toad A606i alarm and when I arm it the alarm comes on but the doors do not lock.

 

Also - if I use the key in the door it doesn't lock/unlock the passenger one (it used to work).

 

Any advice please?

 

Jim

[pug_ham 245 3 Cars]

I'm not sure if the alarm is linked into the reason for it not opening but there is a central locking relay that could be knackered or the drivers door motor is also the sender for the rest so that could be why the rest don't open when you use the key, the drivers door is a mechanical link.

 

The relay is somewhere under the dash but I don't know where.

 

Graham.

[Guest Brick-IT]

Thanks - anyone else know exactly where the relay is please?!

 

Cheers,

 

Jim

[Miles 331 1 Cars]

Didn't think there was a relay only on the remote C/L vesions, The main Drivers door motor just sends a signal to the passengers side and should lock, But the motors do play up alot , If you need one to test I should have a few belive it or not.

[Guest Brick-IT]

Would like to take you up on the offer of one to test with please Miles.

 

Cheers,

 

Jim

[Guest Brick-IT]

Update - tried the motors that Miles gave me - the drivers one has the same type of plugs as the old one but the three pin connector only has the two outside pins - this doesn't work.

 

I used the new passenger one and the old drivers one and it kindof works. If I unplug the three pin connector from the drivers side one the passenger side works perfectly and the drivers one shoots up and then back down again.

 

Found a black box under the steering column which clicks when the central locking goes too - this must be a control box of some sort.

 

My questions are therefore:

 

1. Why does the drivers side shoot up and then straight back down again?

 

2. What is the three pin connector for please (green, yellow and orange wires into a white connector)

 

3. Is it normal to have this control box under the steering column and why does it work better if the three pin connector is not connected?

 

Cheers,

 

Jim

[Guest d-9]

*based on my interpretation of the standard the cl system i piked out of an F-reg 1.9 without a remote*

 

The drivers door contains the sensor, so when the key turns, it tells all the other locks to lock/unlock. This is what the 3 pin plug does. (you will notice the passenger side doesnt have this). Its likely that it will go haywire as it dosen have the control feed.

 

There isnt a CL relay, the loom is split into 3 sections, passenger side, driver side, dash. The dash has connectors at either end for the two seperate looms, a 2 pin connector above the fuse box to go to the boot actuator, a 4pin plug that does the earthing (on the steering collumn) and the plug that goes into the fuse box for power (second plug from the right), 4 pin. The CL power wire is brown, the purple one is for the electric windows, which are on the same loom.

 

so in answer to your questions:

 

1) because its not recieveing control from the actuator

 

2) control, see above

 

3) no, this sounds like part of the alarm system. dont know.

 

hope some of this is relevant.

 

dg

[jackherer 543]

IIRC the thing under your dash that I saw was something non standard so probably related to your alarm.

 

Does your car have the original remote central locking receiver in the interior light housing? If it does then this is why the unit from Miles is different - I think the cl units are different to those from the earlier cars.

[Guest d-9]

jackherer is correct, the ones with the ir central locking are different, at least the drivers door actuator is. i tried one as the passenger door one on mine and it just went haywire, it just blew the fuse when i wired it in on the drivers side.

[Rob_the_Sparky 10]

What about the boot lock? THis should also be going...

[Guest Brick-IT]

Right connected them up again and secured them in their normal positions - they are working perfectly!

 

Very happy - assume it was because the drivers door was not closed and as a result the doors do not lock - something to do with the alarm! Anyway - all is good now - cheers,

 

Jim

[pug_ham 245 3 Cars]

Glad you fixed it, should've thought to say that my mums car is a 5door 309 so that'd explain the main relay.

 

Graham.