mixed door lock wiring, 98 chevy pu

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=134466
Printed Date: July 07, 2025 at 10:21 PM

Topic: mixed door lock wiring, 98 chevy pu

Posted By: garrinchilders
Subject: mixed door lock wiring, 98 chevy pu
Date Posted: July 01, 2013 at 10:26 PM

I have a 98 Chevy Pickup that came with manual windows, and locks. I have gathered all of the internals to convert it to power locks & window. I have the the windows functioning as they should with no issue. but the door locks are giving me fits. The driver side internals came from a two door pickup, and the passenger side internals were salvaged from a Tahoe. From what I understand the 2-door pickups operate without a relay that controls the polarity for the the door locks, but the Tahoe relies on a door lock relay to alternate polarity for the lock motors (again, from what I understand). I was able to get the door locks functioning from the driver switch, but if I try to lock/unlock from the passenger door it shorts the orange wire (constant 12v) in the passenger door to the switch. I will attach the wiring diagrams for the 2-door and the 4-door and hopefully someone can tell me where my issue lies. I have tried this without relays, with the 4-wire alternating setup, and the 5-wire setup all provide the same or very similar results.

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Replies:

Posted By: garrinchilders
Date Posted: July 01, 2013 at 11:27 PM

I should also note that, when it does short out from the passenger switch the locks actuate in the correct directions but they are extremely slow and under powered. I have tested multiple 2-door and 4-door switch assemblies on both sides (I have a box full of them).

Posted By: howie ll
Date Posted: July 02, 2013 at 11:12 AM

There's a simple ansawer here get two more actuators from the top diagram, you're having a mix and match problem.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: garrinchilders
Date Posted: July 02, 2013 at 12:46 PM

howie ll wrote:

There's a simple ansawer here get two more actuators from the top diagram, you're having a mix and match problem.

I have cross-referenced all of the part numbers for actuators in the 2-doors and 4-doors and they are all the same from 95-98.

Posted By: howie ll
Date Posted: July 02, 2013 at 1:55 PM

Not according to those circuit diagrams.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: garrinchilders
Date Posted: July 16, 2013 at 4:57 PM

I replaced the passenger actuator with another one (a 2 door model this time, to match the driver side) and the problem still occurs. it even occurs when it's unplugged from the actuator. Any other Ideas? I have disconnected everything and started from scratch three times. Triple checking my colors and connections. I've tried multiple switches and relays. I am stumped.

Posted By: lucasoil4u
Date Posted: July 17, 2013 at 2:13 PM

Maybe buy an aftermarket kit that comes complete with wiring and just wiring some actuactors inside the door?