Wiring - dummies guide

[Welung666]

El I'll do you a diagram in the mornin' for a standard 5 pin relay Set up so if the ignition is on and the door open then no buzzer, ignition off and door open with lights on then BUZZ! away

I use loads of them doing car alarms so they are easy enough to wire up.

If you want I'll fo you a relay diagram for the ciggy lighter to

Lee

[simmitc]

Hang on a second, there's nothing complicated needed here. Just take a simple buzzer with two wire feed, one +ve, one -ve, no relays or extra wiring at all. Proceed thus:

For negative earth cars, connect the +ve buzzer wire to the side light circuit; for positive earth cars, connect the -ve buzzer wire to the sidelights. This means that the buzzer will get power only when the sidelights are on.

Now connect the other buzzer wire to the courtesy light switch wire. This means that the buzzer will be earhed only when the door is open.

All wiring is accessible from the behind the driver's side glovebox.

It's as simple as that. Suitable buzzers available from Auto Electric Supplies, Vehicle Wiring Products, Maplin, etc. Happy wiring.

[Welung666]

Morning El, hope this will be of some help...



You'll need to pick up:-

A standard 40amp 12v 5 pin relay (any motor spares stockist will hold them)
12 volt buzzer
2 Fuse Holders
Wire and spade connectors



Pins to be used:-

Pin 85 - Ignition switched live via 10amp fuse
Pin 86 - Ground
Pin 87 - Unused
Pin 87A - One side of Buzzer (Other side to permanent live via 10amp fuse)
Pin 30 - Door switch on pillar

Hope thats simple enough to follow?

Lee

PS cigarette lighter is similar except 87A will be unused and 87 to ground side of ciggy lighter (live side can come straight from the battery with a 25amp fuse)

[Kevin]

Ray tells me I need to point out I'm a girl. I fail to see what difference that makes! Lol!!

Did he think that those at the website rally didnt notice...........

[lowedb]

Hang on a second, there's nothing complicated needed here. Just take a simple buzzer with two wire feed, one +ve, one -ve, no relays or extra wiring at all. Proceed thus:

For negative earth cars, connect the +ve buzzer wire to the side light circuit; for positive earth cars, connect the -ve buzzer wire to the sidelights. This means that the buzzer will get power only when the sidelights are on.

Now connect the other buzzer wire to the courtesy light switch wire. This means that the buzzer will be earhed only when the door is open

Almost there. The only problem is it will also buzz (or expire if it's polarity sensitive) with the door closed and the lights off, unless you put in a diode to make sure the current doesn't flow the wrong way. Again Maplin will supply, a 1N4001 or similar should do. The siver line on the diode (cathode) would connect to the positive terminal of the buzzer, and the other end of the diode to the sidelights. Make sure you put a low value inline fuse in the circuit so the diode doesn't have to blow the lighting fuse in case of a short.

[lowedb]

Just a thought.
I almost posted this, but then went on to another post, which made me come back and write this. Please don't anyone take this the wrong way, but go and have a look at the thread 'push home those bullet and spade terminals'.

Even people who do wiring on cars all day every day can mess up (me included) and the results can be interesting and / or painful.

So:

A wiring guide for dummies: don't do wiring.

But seriously, take care because it can go wrong!

[simmitc]

Almost there. The only problem is it will also buzz (or expire if it's polarity sensitive) with the door closed and the lights off, unless you put in a diode to make sure the current doesn't flow the wrong way.

Very true. The buzzer I've used before is polarity concious and has the diode included; but very wise to point out that one might well be needed. Still a lot easier than relays.

[Multiphonikks]

Elllo El (feeling silly!)

I've often thought about a warning buzzer. I'm going to be interested to see how that works

The cigerette ligher does need it's own fuse and what ever you do - don't do what I do and switch it from the ignition. If Wilberforce has anything approaching dodgy electrics he'll cook himself! I know cause that's what happened to me n Hebe's electrics last March. I turned on the ignition and "pooof!" the cigerette ligher blew and then the rev counter packed up too! :shock:



And, Ray, BTW... being a girl has got nothing to do with it (frumps off!)

;)

[Willie]

The original post from RELFRY ask for simple instructions 'and I do mean
basic' she said. You can do anything with relays but I thought that was too
involved for what she wanted so I will be interested to know if she eventually
installs one of the undoubtedly clever systems which have been suggested.
Hope she gives us a progress report.

[Relfy]

so you really need the correct type of wire and it should not be wired
through the existing fuses. I think you should take the 'live' feed straight
from the heavy gauge brown wire which is connected to the starter solonoid
straight from the battery (under the bonnet),and run it through a new 'in line'
fuse to the cigarette lighter.

Hiya, back again! So I'm going to wire up this cigar-lighter in the next few days when i get time - can someone tell me what kind of wire I need to get? connectors? fuse?
I've actually bought a twin cigar-lighter extension - each one with a seperate wire to the plug-thing. So I'm going to remove one and wire it up to the mains and then plug the other one into that as the extension.

If that doesn't make sense I could take a pic of it this eve...

Thanks,