What might a central lock actuator cost?! PLZ HELP!!!

Postby **Okibi** » Fri Dec 05, 2008 1:52 pm

The NB has a rod connecting to the unlock "button" on the door leaver which could theoretically be used.

robbie9394 · Postby **robbie9394** » Sat Dec 06, 2008 9:10 am

ordered a 2nd hand one from mania ... (takes a few days)

according to the alarm guy .... he said it ran a "cable" ... not a rod ....

i haven't actually had a good look myself ... when i sent him the url to the Jaycar ones he said "if one of those would work i would have changed it for you the other day because i have half a dozen of them in my ute"

so .... he did consider using an aftermarket one on the spot right at the time when he had taken my door apart

rod/cable i don't know myself .... i'll find out when i speak to him next time

Garry · Postby **Garry** » Mon Dec 08, 2008 8:37 am

oops, he's right. It's been a while since I looked inside my door. :oops:

silvermiata · Postby **silvermiata** » Mon Dec 08, 2008 5:01 pm

funny i have exact same problem with the jaycar actuator i have put in 4 months ago.. its dead and confirmed by the multimeter

got a new one today for 9 dollars... so anyone out there buying jaycar actuators do not throw out the receipts as they come with 1 year warranty and they break...

Postby **Okibi** » Wed Dec 10, 2008 1:47 am

Hope i'm not hyjacking your thread, you might find this interesting.

I had a bit more of a look at my passenger site central locking tonight.

Firstly, my theory about electromagnets is wrong :oops:

There are 3 wires on the plug in the door and 2 from the plug to the locking mechanism (the black earth wire isn't used).

The difference between lock/unlock is 12volts + or - (Can't remember which way around it is)

The locking mechanism is controlled by a motor and a set of gears that lock/unlock depending on the direction the motor is spinning.

So in my case (it unlocks but doesn't lock) I don't think it can be a wiring fault at the connector because it obviously completes a circuit to spin one direction.

I hooked the lock up to a 12v battery and it locks/unlocks fine, but once connected to my car (free from the door without any connecting rods etc) it will only unlock.

Perhaps in my MX-5 there's a strong enough current to unlock but not to unlock the door. Perhaps it's a dud relay?

robbie9394 · Postby **robbie9394** » Wed Dec 10, 2008 11:46 am

Hey Okibi,

You're fine posting it here, every1 will only benifit from this extra info

I'm not very technical at all, but in your case, sounds like a relay problem doesn't it? :oops:

Postby **Okibi** » Wed Dec 10, 2008 12:18 pm

I took a stack of photos, i'll try and post them tonight.

silvermiata · Postby **silvermiata** » Wed Dec 10, 2008 1:30 pm

if there are 3 wires, then it could work like, 2 wires +12, 1 wire ground..

lets say you have green(g), red(r) and white(w) wires, then g would be +12 for locking, r would be +12 for unlocking and w would be ground.. in your case you do not get +12 from g when you lock the door which i reckon leads to problem with relay of the locking/unlocking mechanisim or wire problem (green wire is broken or disconnected somehow)

i hope i make sense...

Postby **Okibi** » Wed Dec 10, 2008 2:38 pm

Okibi wrote:There are 3 wires on the plug in the door and 2 from the plug to the locking mechanism (the black earth wire isn't used).

Yup the black ISN'T used, ie. no metal connector in the socket OR wire from the socket (going to the lock)

I think they've just added it so Wun can remove it and reduce the weight of his MX-5 by 5grams.

Postby **Okibi** » Thu Dec 11, 2008 12:02 am

Started my own thread over here:
http://mx5cartalk.com/phpBB-3.0.2/viewtopic.php?t=34235

Wuey · Postby **Wuey** » Thu Dec 11, 2008 7:18 pm

One advice for people who prefer to opt for the J-car unit is to wrap the actuator with plastic sheet to prevent water damage. My master actuator needed replacement after water got into it. Also, a small drop of Loctite blue threadlock on the clamp will help heaps in preventing it coming loose after repeater use.