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1998 Chevy 1500 truck

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=1370
Printed Date: July 01, 2025 at 7:46 PM


Topic: 1998 Chevy 1500 truck

Posted By: mikuniman
Subject: 1998 Chevy 1500 truck
Date Posted: June 17, 2002 at 2:37 PM

Hello,

Does anyone know what type of lock/unlock system GM used on the 1998 trucks. My alarm has both +/- for the locks but it eith has the three or five wire system I think. Anyone?

Jason




Replies:

Posted By: paudio
Date Posted: June 17, 2002 at 3:41 PM
'98 Chevy has the five wire. If it has the OEM Keyless module it will be reverse polarity but it it does not have the OEM keyless module it is positive pulse. The wire colors are L Blue(lock) and White(unlock) located in the drivers kick panel.



Posted By: Velocity Motors
Date Posted: June 17, 2002 at 4:58 PM

To add to what paudio said, if you have a 4 door version of the truck the locking system is a positive type A system.



-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA


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