Central locking HELP

[alexm3uk]

Ok peeps I need your help to day I thought I would have a look at the central locking as it has never worked properly since I have had the car (e30 m3)
So I took I ordered a new A pillar mutiplug and pins as they needed changing and a new central locking module
So go outside and take out kick panel and take out plug and what do I find wires fcuking everywhere not plugged in and I can not find where they should be plugged in so this is where I need your help




1. Black plug on the left not plugged in anywhere just stuffed behind speaker with the black and red wire coming out of it connected to the white plug which goes on the central locking module so where and what does this black plug do ??????
Next


2. 3pin plug in middle of pic is not plugged in anywhere either it has a brown/blue wire coming out of it and goes into the a pillar mutiplug and a green/purple wire coming out and going to the central locking module any ideas ???????



3. Then I have a grey/green wire coming out the mutiplug with a connector on the end not plugged in any ideas????



4. Then I have other wire coming out the mutiplug a grey/yellow wire with a blue plug on the end guess what thats not plugged either



Last one then I have a green/blue wire with a white connector on the end and thats not plugged in and as you can see two red/yellow wire just hanging around doing nothing any ideas welcome


Help

[DanThe]

The black plug is for the interior light delay relay, not sure about the rest of the top of my head though

[smithy318i]

1. the black plug is for the interior light relay.



2. mine isn't conected too. Don't wory about it.

Grey/Green wire from plug isn't conected.
Grey/Yellow wire with blue plug isnt conected.

Thick green/Blue wire is for power to electric windows.

2 x red/yellow wires... NO IDEA... mine doesn't have any.

[Brianmoooore]

There are loads of normally unused connectors around E30s and most other cars as well. They are for various markets and options.
If everything works, chances are they shouldn't be connected.
Just as long as you don't come across any of those bl**dy scotchlock things as in Smithy318i's pic.

[smithy318i]

have you tried joining the two Red/black wires together on the inside of the multiplug? this fixes a lot of CL faults.

[Brianmoooore]

have you tried joining the two Red/black wires together on the inside of the multiplug? this fixes a lot of CL faults.

But not with a scotchlock!

[alexm3uk]

sorry should of said the blue/green wire was tucked up behind steering wheel . the locking has ever worked as such but found some broken pins in the plug so doing them now. the locking use to work every now and then but only if i turned the key to 90degrees to deadlock ( and it used to make buzzing sound and popped back up ) but i was told that there are 2 positions the other one at 45degrees ?????? is that right ????

[Brianmoooore]

Disconnect the two red/blacks from the door connector (car side) and join them together.
You are correct as to how the locking should work. Any faults with this will most likely be cured by a good service and adjustment of the key barrel assembly and the bits it interacts with.

[DaveD]

Pin Colour Function
1 GN/WT Fuse 19 PWR to mirrors + Interior light cancel
2 br Interior light GND door handle switch
3 RD Interior light timer; central lock control PWR
4
5 BU/BK PWR passenger window motor
6 BU/WT PWR passenger mirror motor
7 WT/BK Switched PWR to passenger mirror clutch
8 BR GND central lock control, double lock
9 BU PWR/return door lock motor
10 WT Return/PWR door lock motor
11 YL/BU Lock request
12 GR/BU Unlock request
13 VI PWR window motor
14 BK PWR window motor
15 RD/BK Interior light timer; central lock PWR
16
17 RD/BR Double lock request
18 GN/WH Fuse 19 PWR interior light cancel
19 BR/GR Interior light enable
20 GY/GN Radio speaker
21 GY/YL Radio speaker


note: colours BK=black, BR=brown, RD=red, YL=yellow, GN=green, BL=blue, VI=violet, GY=grey, WT=white

note2: colours not used in all years/models, this is a general guide only!

note3: some cars have lock heaters, some have interior light timers, probably in an either or situation.


maybe this will help