Most of us hooked up the alarm shock sensor to the hood trigger wire (yellow w/ silver stripe). Anyone with a Helm manual, can you point out which is the TRUNK trigger wire? (color code, where can it be found etc would be extremely appreciated. THx.

 

This is page 22-212 if anyone wants to double check my results (and please do!!):

The hood trigger wire:
Cavity B6
Yellow
Hood Open: V=<1V
Hood Closed: V=>5V

The trunk trigger wire:
Cavity B8
Blue/Green
Trunk lid open: V=<1V
Trunk lid closed: V=>5V

The trunk wire is in the same general location as the hood wire, ie at the control unit on the drivers side.

Out of curiousity, what do you have in mind?

 

Thanks for your help man. What I had in mind was wire my trigger wire to the trunk trigger wire instead of the hood. When I pop the trunk, the trunk trigger wire is DISABLED by the stock alarm unit, thus, even if the shock sensor is trigger by vibration, the alarm will NOT go off so I can put stuffs in the trunk and such without having to worry about the alarm. When I close the trunk, stock alarm senses this and enable this trunk wire again, thus the shock sensor will work again as normal. This is just my theory..any info/comment is welcomed.

 

I'll check this when I get home, but I *think* that "legally" opening the trunk (or door or hood etc) will all disable the alarm. If so, you could hook up your shock sensor to the hood/trunk/door etc and it would be the same. Maybe SilverKnight could chime in here...

 

Keep in mind, the stock alarm will NOT arm even though the doors may be locked (if you press the lock button on the remote) if one or more of the following conditions is/are met:
- Hood open (door will lock).
- Trunk open (door will lock).
- Door(s) open (door will NOT lock).
- Key in ignition (door will NOT lock).

So it doesn't matter which wire you tap the shock sensor wire to. Hope it helps.

 

No, you misunderstood me. Try this...pop the trunk with your remote (while system still arms)..now tap the car to simulate a situation like you were putting stuffs in the trunk...BAM, alarm goes off via the shock sensor. Why? because we tapped into the HOOD trigger wire (which is not disabled when the trunk is opened).

Now if you tap the shock sensor to the trigger wire of the trunk, if the trunk is open (with remote) while the system is still armed, the factory alarm will "disable" the trunk trigger wire (ignores its signal) so doesn't matter if the shock is being picked up and is being sent to the trunk signal, alarm will not go off.. So when you're finished loading, close the trunk, factory alarm sees that the trunk is now closed, enable the trunk trigger wire again...everything is back to full alarming state.

When i said open the trunk, i meant to use the remote and open it, not disable the system, open the door and pop the trunk via that switch on the door....this mod should be useful if you just want to put something into the trunk and go do something else...

 

I think randomwalk101 is correct.

My test was exceedingly sophisticated, so keep up if you can.
- close all doors/trunk/hood and arm alarm using FOB
- watch the little blinking red light at the door that shows alarm is armed
- yep, it blinks
- open trunk using FOB
- watch blinking light
- hmm... still blinking
- disarm alarm using FOB
- watch blinking light
- nope, not blinking
- end of scientific high tech test

Conclusion: If you open the trunk using the FOB, the alarm is still armed. So if you hook the shock sensor to the trunk wires, dumping groceries into your open trunk will cause the alarm to go off.

Congrats randomwalk101! Now go install your alarm and tell us how it works out.

 

Hook it up to HOOD trigger wire will cause it to go off if you're messing in the trunk. Hood is not disabled yet, however trunk trigger wire is.

I have a TL. Wiring code is different from CL I think. The hood trigger wire is yellow/silver and trunk trigger wire I think is orange/silver...different than the one you gave me..but i'm not 100 positive.

 

While you are at it, try this.
- Lower your driver side window
- Arm the stock alarm.
- Pop the trunk using the FOB
- Verify that the LED still blinks
- Pull the door lock switch up to unlock the doors

See if the alarm is set off. I have aftermarket alarm now so I cannot try it. Make sure you dont try it in middle of the night or someone will call the police . Let us know the result.

 

Good idea. I'll try it later tonight at like 4am. I don't like the guy who lives next to me anyway... I'll keep you guys posted.

 

Did this
- Wind down window
- Armed alarm
- Opened trunk using FOB
- Pulled the door lock switch

And what do you know... Alarm sounds. So looks like if you have a shock sensor, it would be better to hook it up to the trunk wires.

 

Trunk wire that is then. Also, I think the trunk wire is easier to find the hood wire if I remember correctly.

 

Hehe..ez for YOU...since you're in Houston, may be I can drive my car up to you and let you point it out to me...but may be you should look at your car first and see if you can find it Trust me, it ain't EZ.

i tried to looked for that blue/green wire...there isn't one that I can see. I only saw GREEn/Blue (ei. green wire w/ blue stripe...yes, there is a difference). Now if anyone see where that blue/green wire we are looking for let me know. I'm about to give up finding that stupid trunk trigger wire.

 

LOL... Maybe the wiring is different for a TL vs CL. SilverKnight and I both have the 01 CL. My Helm manual is for the CL. You have a TL. You're shit outta luck.

However, if you have a voltmeter, you can just go measure the voltage of each wire before and after opening the trunk. Obviously the wire that changes voltage is the trunk wire. I do hope you have a few hours to spare next weekend...

Sorry I can't offer you more concrete help than this.

 

I forgot... Try the TL board. Them dudes have those 4 door car thingies... Us dudes on this board have the 2 doors.

 

I powered my shock sensor with a wire that only has voltage when the trunk is closed. When you pop the trunk, the shock sensor loses power (it won't set the alarm off). As soon as the trunk is closed, the shock sensor regains power.

Noone seemed to like this idea when I did it, originally. Glad to hear someone else has some brains.

 

hahaha ... you know what? I just installed a CompuStar alarm in my car with remote start, windows control. The alarm called for hood switch, trunk lid, door wires so, of course, I found all of them for my car, the CL. I dont know if the wire colors are diff. on the TL but I can show you the wires on the CL in the HELM manual.