2000 grand am Locks but doesn’t unlock
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=87782
Printed Date: May 13, 2024 at 2:58 AM
Topic: 2000 grand am Locks but doesn’t unlock
Posted By: chuckles_1205
Subject: 2000 grand am Locks but doesn’t unlock
Date Posted: December 25, 2006 at 8:31 PM
So I installed a new alarm/remote start in my wifes car everthing works great accept one thing, if I hit the lock button it locks fine but if i hit the unlock button / disarm button it doesn't disarm. The system is a 3 wire system and I had to use a resistor to make the doors lock.
Any thing I should look at?
Replies:
Posted By: Twelvoltz
Date Posted: December 25, 2006 at 9:10 PM
DEI lists lock as not requiring a resistor and unlock requiring a resistor:
Power Lock white - black plug in dkp
Power Unlock same wire
PONTIAC, GRAND AM, 2000, Power Lock
Lock requires a negative trigger, and unlock requires a negative trigger through a 1,500 ohm resistor. Must use relays. Must close doors to lock with a single pulse.
It sounds as if you may have lock and unlock backwards from your unit, and make sure you use relays.
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