02 trailblazer unlock but no lock
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=60315
Printed Date: May 16, 2024 at 3:52 AM
Topic: 02 trailblazer unlock but no lock
Posted By: geofgcrtr
Subject: 02 trailblazer unlock but no lock
Date Posted: July 28, 2005 at 10:39 PM
I have installed an Omega Comfort Start remote start/keyless entry in '02 Trailblazer. Using DEI 457G for passlock and data bus. Everything is working except remote locks. The Comfort start is recieving the signal and flashed the parking lights and beeps horn, but the locks don't work. The unlock works fine. Remote start works fine. Thanks Geoffrey
Replies:
Posted By: Velocity Motors
Date Posted: July 28, 2005 at 10:50 PM
Did you check the output on the lock wire to see if your getting a signal ?
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: geofgcrtr
Date Posted: July 28, 2005 at 11:04 PM
I saw a momentary pulse just like with the unlock. How is the best way to check the output? Thanks
Posted By: geofgcrtr
Date Posted: July 28, 2005 at 11:07 PM
BTW ... Did not hook up OEM Arm or Disarm leads from Comfort Start. Did not use (-) Door triger input or Panic wire on 457. Geoffrey
Posted By: shesaidshewas18
Date Posted: July 29, 2005 at 3:39 AM
Shouldnt the 457 take care of the oem arm and dis-arm?
Posted By: geofgcrtr
Date Posted: July 29, 2005 at 7:14 AM
Yes the 457 seems to be working fine for the OEM arm/disarm. Thanks
Posted By: Powermyster
Date Posted: July 29, 2005 at 7:20 AM
POWER LOCK use Directed module
POWER UNLOCK part #455G *3 NOTE: This vehicle has the passlock II immobilizer system that, when adding a remote start, must be interfaced with. Use DEI part 555L. *1 The liftgate glass ajar switch wire is purple. It is also located at the liftgate module in the liftgate. *2 The PCM (Powertrain Control Module) is on the driver side of the motor. *3 If Directed module part #455G is not available, refer to directfax document #1053. this is all i could find on the locking
Posted By: geofgcrtr
Date Posted: July 29, 2005 at 7:23 AM
Thanks. The 457G is "supposed to" replace both modules for this vehicle. Maybe I should have used both instead of the all in one.
Posted By: Powermyster
Date Posted: July 29, 2005 at 10:07 AM
i dunno we havent' got those vehicles over here just passing on the info sorry if it didn't help
Posted By: iskidoo
Date Posted: July 29, 2005 at 11:20 AM
geofgcrtr wrote:
I saw a momentary pulse just like with the unlock. How is the best way to check the output?
Was it a negative pulse or positive? Put a meter or test light on +12v and the other side to the output. You should see it light up or see 12v on the meter when you press lock or unlock. ------------- Steve G
Posted By: geofgcrtr
Date Posted: July 29, 2005 at 12:16 PM
iskidoo wrote:
Was it a negative pulse or positive? Put a meter or test light on +12v and the other side to the output. You should see it light up or see 12v on the meter when you press lock or unlock.
I'll try this tonight. Thanks
Posted By: geofgcrtr
Date Posted: July 29, 2005 at 5:16 PM
Ok that test worked. I get a single pulse lock and double unlock. If i reverse the connection, they still don't lock with the double pulse. thanks Geoffrey
Posted By: mo12v
Date Posted: July 29, 2005 at 10:10 PM
Are the Keys in the Ignition and are you testing with the doors closed??
NO keys in Ignition and TEST only with the doors closed............
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: geofgcrtr
Date Posted: July 29, 2005 at 11:35 PM
No keys in ignition, tried with doors closed, dome light on, dome light off, immediately after closing doors and after car sitting for hours. I'm starting to think I have a bad module. I can see the pulse to that point. and I thought the remote start would be the hard part. LOL Does anyone no what the pulse duration has to be for the lock using the DEI databus interfaces?Their paperwork only says (-) input. Thanks
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