1990 Chevy Silverado Door 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=27453
Printed Date: July 27, 2025 at 12:21 AM

Topic: 1990 Chevy Silverado Door Lock

Posted By: mamerican60
Subject: 1990 Chevy Silverado Door Lock
Date Posted: February 29, 2004 at 1:40 PM

I'm instaliing audiovox remote start keyless entry need help with door locks

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mas

Replies:

Posted By: mo12v
Date Posted: February 29, 2004 at 6:08 PM

Check to see if you can hear the Factory Relays click when Lock/Unlock doors with door switch. You can go right to them for Lock/Unlock
OR
Reversal Rest At Ground 5 wire Hookup
LOCK Light Blue
UNLOCK Black or BLACK/ Red
Easier to get to wires under Driver Speaker or if you are lucky in Driver Kick Panel

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Posted By: mamerican60
Date Posted: February 29, 2004 at 6:32 PM

If I can find factory relays then I wont have to use additional relays or lock interface?

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mas

Posted By: mamerican60
Date Posted: February 29, 2004 at 11:56 PM

I could not find any factory relays.

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mas

Posted By: draasch
Date Posted: March 01, 2004 at 12:07 AM

Make:   Chevrolet
Model: Pickup - Fullsize
Year:    1988-94
This Database Was Last Updated On:    6/9/2003
Index #: 6528

Alarm
Constant 12 volts RED AND RED IGNITION SWITCH HARNESS
Ignition 12 volts PINK IGNITION SWITCH HARNESS
Starter PURPLE - AUTOMATIC TRANS. / YELLOW - MANUAL TRANSMISSION
Dome Light WHITE (-) PIN SWITCH OR AT COURTESY LIGHT
Trunk Pin Switch N/A
Parking Lamp BROWN (+) AT HEADLIGHT SWITCH
Power Lock LT BLUE BEHIND AND BELOW DRIVER #203
Power Unlock BLACK/ RED SPEAKER IN DASH

#203- See Reversal Rest At Ground Door Lock Diagram.

https://wiringinstructions.com/203.htm

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Good Luck
David
Ace Security
813-376-9778
Tampa
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