Central locking switch on door release knob
Central locking switch on door release knob
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Discussion

Dalamar

Original Poster:

305 posts

97 months

Thursday 29th November 2018
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My Chimaera came with lots of lovely wiring challenges and one of them is the central locking switch on the door release knob which isn't working. The top is cracked but it functions correctly as a momentary switch and the wiring to the door solenoids is present.

Could someone please confirm if the switch only locks the doors? The owner's manual suggested this is the case but I thought I'd check.

I might see if it is possible to hook a press once for lock and press again for unlock circuit but that might be too involved. Has anyone done this and could share a circuit diagram?

Finally, is the replacement switch still the RAFI 1.15.106.502/1500
?

Penelope Stopit

11,209 posts

131 months

Thursday 29th November 2018
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This circuit is one I use for reversing window motors and will reverse any motor

Belle427

11,188 posts

255 months

Thursday 29th November 2018
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From memory mine locks with the button, I don’t get an unlock pulse when I press it again.
I would check your door contact switches first as they are an integral part of the circuit operation.

Steve_D

13,801 posts

280 months

Thursday 29th November 2018
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The button only works the lock function.
If you wanted it to do 'Unlock' as well then you would need some sort of latching relay.
Both lock and unlock functions are by way of earthing the required pin on the central locking module so the relay would need to change between the two. However I suspect it could quite easily get out of sync.

Steve

over_the_hill

3,267 posts

268 months

Friday 30th November 2018
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My button doesn't work either so this is of interest.

From memory the button was single press to lock but twisting the knob to open the doors turned it off


Zeb74

461 posts

151 months

Friday 30th November 2018
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My button also only locks the doors. But, it's only when you open the passenger door that it unlocks. If you open the driver door, nothing is unlocked.
I've cleaned the switch located at the bottom of the driver door but the issue seems to be between it and the locking central.
And, as you can lock accidentally, with the elbow, I've already experimented the loneliness of the Chimaera owner, staying outside of the car, keys inside and all door locked frown.
So, if you find a way to unlock also using this button, do not hesitate to share.

Belle427

11,188 posts

255 months

Friday 30th November 2018
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You could simply disconnect the switch to stop this happening.
I see little point in it, was it an anti hijack feature or something?
Upgrading to a modern alarm can give you an auto lock/unlock feature.

ChimpOnGas

9,637 posts

201 months

Saturday 1st December 2018
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Belle427 said:
You could simply disconnect the switch to stop this happening.
I see little point in it, was it an anti hijack feature or something?
Upgrading to a modern alarm can give you an auto lock/unlock feature.
Yes., it was an anti-carjacking deadlock button so when driving through a dodgy part of town you could press the little green glowing button to lock yourself in.

As others have said it's all too easy to bump the switch with your arm/elbow, with the doors in lock mode if the driver jumps out and shuts his door he'll be locked out, this actually happened to me a couple of times and many more times I realised before getting locked out.

As I really have no need for an anti-carjacking button and given the issues it caused, I simply disconnected the damn thing!

And I've never missed it since wink

ianwayne

7,626 posts

290 months

Sunday 2nd December 2018
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Mine doesn't work. I looked into replacing it (the power is there) but it was £12 I think so haven't bothered. I haven't missed it.

I've had 3 Chimaera and I agree you set it off accidentally. Especially if leaning across for something. However, if you rotate the knob to get out, I had understood the system was then released / reset. I have never locked myself out this way. Perhaps your system was faulty?

ou sont les biscuits

5,425 posts

217 months

Sunday 2nd December 2018
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ianwayne said:
Mine doesn't work. I looked into replacing it (the power is there) but it was £12 I think so haven't bothered. I haven't missed it.

I've had 3 Chimaera and I agree you set it off accidentally. Especially if leaning across for something. However, if you rotate the knob to get out, I had understood the system was then released / reset. I have never locked myself out this way. Perhaps your system was faulty?
That's the way mine works. Rotating the knob cancels whatever the button does.

Dalamar

Original Poster:

305 posts

97 months

Friday 7th December 2018
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Thanks everyone for the info.

I think I’m going to leave it be given the amount of hassle involved only to be accidentally locked out of your own car. I can appreciate that as have been locked out too when fixing the professionally mis-installed alarm system.

On to the next challenge now, refurbishing a radio panel to replace the previous owner’s effort.