Question about 2008 Saturn Aura
Posted by Anonymous on
Door Lock System Controls
The Power Door Lock System is controlled by the body control module (BCM) and can be activated by any one of the following:
A door lock switch lock or unlock actuation
A keyless entry transmitter actuation
An automatic door lock or unlock actuation
A last door closed locking (LDCL) actuation
If the driver door cylinder switch feature of the vehicle is functional, the locks may also be operated by a driver door cylinder switch lock or unlock activation.
Power Door Lock Switch Operation
Each door lock switch is wired to the body control module (BCM) through a separate door lock/unlock signal circuit. While these circuits are separated between the BCM and respective door lock switch, they are connected into a single circuit within the BCM. The BCM supplies voltage through the door lock/unlock signal circuits to each door lock switch. When either door lock switch is operated, this supply voltage is pulled to ground, providing the BCM with the required lock or unlock signal. In order for the BCM to distinguish between a lock and unlock signal, the lock switch contains two separate paths for this voltage to flow to the same body ground. When the switch is operated to the unlock position, the supply voltage flows to ground through a 1.5 K?© resistor. When the switch is operated to the lock position, the supply voltage flows to ground through a different part of the switch circuit, which has no resistor. The BCM then interprets the flow of voltage as a lock or unlock request and powers the door lock actuators to the appropriate lock or unlock position.
I'll post a youtube video on how to test the power door locks computer controlled , check it out ! Your problem could be a switch or the lock actuator , BCM , wiring etc.... you need to test it to see !
How to test computer controlled door locks
Posted on Jun 28, 2015
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 13, 2013 | Cars & Trucks
Jun 25, 2012 | 1999 Dodge Stratus
Jun 13, 2012 | 2006 Dodge Caravan
Apr 27, 2012 | Cars & Trucks
Feb 07, 2012 | 1995 Jeep Grand Cherokee
Nov 11, 2011 | 2000 Lincoln LS
Jun 30, 2010 | 2004 Saturn VUE
Oct 07, 2009 | Ford Windstar Cars & Trucks
241 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: