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Door (Un)Lock With Aftermarket Alarm

2K views 0 replies 1 participant last post by  nvrau 
#1 ·
I am researching what/where to connect an after-market alarm to the car's door (un)lock. It appears the lock & unlock signal is via the same wire using a 610 Ohm (or 630 Ohm depending on where I read). Some information suggests you can find the wire at the vacuum pump and others at the hazard/door lock switch in the dash.

I found a BLK/RED at the pump and occasionally it would work with negative & 610 Ohm negative. At the hazard/lock switch, I found the GRN/YEL wire controls the locks. However, I never did get the locks to (un)lock, at all.

Can anyone assist further?
 
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