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factory switch not working after alarm

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=127799
Printed Date: May 09, 2024 at 2:44 PM


Topic: factory switch not working after alarm

Posted By: initiald
Subject: factory switch not working after alarm
Date Posted: July 02, 2011 at 10:20 PM

Hi,

I just got an alpine sec-8028 installed into an '00 Civic SI and the alarm works like a charm, but the car's factory central door lock switch does not function anymore. When I disconnect the two alpine door trigger wires, the car's central switch works again like from the factory. The car locks/unlocks with the alpine when I arm/disarm but I would like to have control from the factory switch too.

My wiring went like this according to the diagrams:

alpine WHITE/ green (unlock common) --> honda GREEN/ orange (unlock input)
alpine WHITE/ brown (lock common) --> honda GREEN / WHITE (lock input)

I connected the alpine wires near the harness that plugs into that white lock control unit in the drivers kick panel. No fuses are blown and all connections are solid.

I'm stumped.



Replies:

Posted By: howie ll
Date Posted: July 03, 2011 at 3:44 AM
You appear to have connected correctly but:-
BROWN / red and GREEN/ red grounded to a factory bolt in the kick paneland checked their continuity, should be less than 1ohm against the battery ground.
BROWN / blue and GREEN/ blue don't use.
Have you tested the alarm's lock outputs to make sure WHITE/ brown and WHITE/ green are each going to ground momentarily when you press lock and unlock on the remote?
Have you tested the GREEN / WHITE and GREEN/ orange factory wires? Ground each.
Also perform these tests with the key OUT of the ignition and any open doors, latch the lock.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.




Posted By: t&t tech
Date Posted: July 03, 2011 at 7:03 AM
Diode the trgger inputs with two one amp diodes band facing alarm side.

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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5




Posted By: howie ll
Date Posted: July 03, 2011 at 7:05 AM
Shouldn't need them, never needed them on a Honda and don't forget the locks on this alarm are relay driven, therefore diodes aren't needed.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.




Posted By: howie ll
Date Posted: July 03, 2011 at 7:07 AM
I've just re-read the post,when did Civics have a factory lock switch? In Europe you just push down on the driver side switch.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.




Posted By: initiald
Date Posted: July 03, 2011 at 1:57 PM
When I say factory lock switch I mean the drivers side switch.

I'll try to do those tests tonight.




Posted By: t&t tech
Date Posted: July 03, 2011 at 5:14 PM
I know i've never used them on hondas, but then I thought civics of that generation we never had a rocker, so hence the advice of the diodes, since i was thinking it was a different car altogether.

-------------
COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5




Posted By: howie ll
Date Posted: July 03, 2011 at 5:48 PM
Hence my comment about what lock switch, nothing on a Honda similar to the Toyota switches.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.




Posted By: initiald
Date Posted: July 04, 2011 at 11:11 PM
It was actually the brain that was the problem.

Last night I called up a buddy so I can swap and test the alpine brains to see what would happen. Turns out my alpine brain was causing the same problems when installed in his car while his alpine brain worked perfectly installed in my car.

I bought his alpine from him and he's off to get a new paging alarm he always wanted.

I want to thank you guys for spending the time helping me.

Brian.





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