Question about 2007 GMC Sierra 1500
Fuses are ok
Door Lock System Components
The power door lock system consists of the following components:
The driver door switch (DDS)
The passenger door switch (PDS)
The body control module (BCM)
The driver information center (DIC)
The rear door lock/unlock relay (LBEC)
The door lock actuators in each of the doors The rear passenger doors are controlled by the BCM through the rear door lock/unlock relay which is incorporated onto the printed circuit board in the LH BEC. The BCM controls the unlock relay by providing ground to energize the coil and controls the lock relay by providing battery voltage to energize the relay coil. The energized the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. Since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.
Do you know what the BCM is , body control module ! If you do not know about this stuff I strongly suggest you to it to a ASE certified repair facility ! Save yourself some money an aggravation !
Posted on Apr 17, 2015
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Posted on Jan 02, 2017
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