2012 chevy silverado alarm
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=132306
Printed Date: May 09, 2024 at 1:05 AM
Topic: 2012 chevy silverado alarm
Posted By: desh187
Subject: 2012 chevy silverado alarm
Date Posted: October 03, 2012 at 9:27 PM
Has anyone installed an alarm on a base 2012 Chevy Silverado with just power door locks (no factory Keyless)?
My main question being is does the base model have negative door locks as previous years or do they all need can bus modules just for keyless entry?
Thanks in advance for any feed back
Replies:
Posted By: 01ws6/tamu
Date Posted: October 03, 2012 at 11:17 PM
Must use alarm interface module.
Posted By: sparkie
Date Posted: October 04, 2012 at 1:07 PM
On the base trucks without keyless or power windows, you can find a ORANGE / Black unlock wire and a Pink/Black lock wire at the gray plug of the BCM in cavities 11 and 12. These are the driver's door switch wires and need a ground pulse to activate. If not a base truck, then you need to use a data module to interface with the vehicle.
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sparky
Posted By: shortcircuit161
Date Posted: October 04, 2012 at 1:09 PM
Power Lock pink/black (except premium models) - BCM, gray plug, pin 12
Notes: The BCM (Body Control Module) is under the driver dash, to the left of the steering column.
On premium models, use a Directed interface module. If interface module is not available, see Tech Doc 1601, using the following wires.
The driver door lock - unlock motor wires are tan - purple (5 wire) at the driver window switch, brown 16 pin plug, pins 7 and 8.
The passenger door lock - unlock motor wires are tan - gray/black (5 wire) at the passenger window switch, brown 16 pin plug, pins 7 and 8.
The rear doors lock - unlock wires are lt. blue (+) - white (-) at the BCM, gray plug, pins 7 and 9.
Power Unlock ORANGE / black (except premium models) - BCM, gray plug, pin 11
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