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-   -   how to install a car alarm?? (https://www.mazda3club.com/exterior-interior-audio-4/how-install-car-alarm-10911/)

jtphl August-16th-2002 10:56 AM

how to install a car alarm??
 
Hi,

where shall I tap the lock, unlock and the driver's priority unlock wires? Where to connect them ?

don caballero August-16th-2002 03:54 PM

driver's door priority
 
See the following post where Darryl and I talk about the driver's door priority wiring: http://www.protegeclub.com/forum/sho...&threadid=9406

Here are details on the non-driver's door unlock/lock connections (Darryl double-checked these for me, and they worked, and the driver's door priority worked too):

for the unlock relay
--------------------
1) 30 goes to single-wire door lock signal (which is normally at +5V).
2) 87a (Normally closed) floats w/ no connection
3) 87 (Normally opened) gets grounded
4) 86 gets +12V
5) 85 gets unlock negative output from alarm brain

for lock relay
---------------
1) 30 goes 1.5Kohm resistor, which goes to single-wire door lock signal
(which is normally at +5V).
2) 87a (Normally closed) floats w/ no connection
3) 87 (Normally opened) gets grounded
4) 86 gets +12V
5) 85 gets lock negative output from alarm brain


Don Caballero

don caballero August-16th-2002 03:55 PM

uh, that link I suggested isn't quite complete
 
uh, that link I suggested isn't quite complete. Instead, search for posting w/ subject "wrecked door-lock relay module during alarm install" and look at the posts that follow it.

Don Cab

jtphl August-16th-2002 08:03 PM

by the way, my car has an existing remote keyless entry which also has the driver's priority unlock feature. do I still need to add new set of wires or just look for the existing wires of the keyless entry?

don caballero August-19th-2002 09:58 AM

Not sure what you're asking... For driver's door priority, you'll need to read the post I recommended. It describes how you:

1) find the wire that goes from the door-lock relay module (this is a different module than the OEM keyless module).

2) find the wire that shows +12 when you unlock the driver's door (this differs from a wire that shows +12 when you unlock the other doors, so don't confuse them). That is, use your OEM keyless transmitter to find the wire that sends +12V to the driver's door lock-motor only. There's another wire from that same door-lock module that sends +12V to the other doors' relay-module, which should never be cut.

3) Now that you've found the wire that sends +12V to the driver's door lock-motor only, you have to cut into that wire (between the door-lock module and the door-lock accuator/motor), and insert a relay. The relay's normally-close path will make the default connection between the door-lock relay module and the door-lock accuator/motor. The normally-opened path of the relay will allow you to break the default connection and send +12V to the doorlock-motor in the driver's door.


Make sense?

-Don Caballero

don caballero August-19th-2002 10:00 AM

Sorry, the wires mentioned in (2) and (3) above are found between the door-lock relay module and the driver's door-lock accuator/motor.


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