Question about 2004 Chevrolet TrailBlazer
If the key doesn't work on the driver's side door, then the vehicle had the driver's side dor replaced, and whomever did the repair, failed to remove the door lock assembly from the old door and swap it out with the "new" door. This only happens when the door is taken from a wrecked vehicle and used as a replacement. You do not get doors from a factory with the lock assembly in place.
Take the vehicle back to where you had it repaired and tell them that it is thier fault that your vbehicle remote locking system fails. They did not set up (adjust) the switches correctly.
Posted on Aug 23, 2009
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Posted on Jan 02, 2017
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Aug 07, 2017 | Cars & Trucks
Dec 16, 2015 | 2012 Chevrolet Equinox LS 4dr SUV 2.4L...
The liftgate lamps
The courtesy lamp supply voltage circuit of the body control module (BCM) supplies battery positive voltage to the dome lamp, the liftgate lamps, and the map lamps. When any door is opened, the door jamb switch contacts close providing a door open input to the BCM. The BCM then provides a ground to the interior lamps with the switch in the AUTO position. The interior lamps receive a ground at G401 with the switch in the ON position.
Important: If the liftgate is opened after all the modules go to sleep, the dome light will not come on. The liftgate ajar switch input to the BCM will not wake up the BCM once it has gone to sleep, so the dome light will not come on. Once the BCM gets an input to wake it up, from remote keyless entry (RKE) or a door handle, the dome light will turn on when the liftgate is opened.
If the driver inadvertently leaves any interior lamp ON, the BCM will turn it OFF after a 20 minute time-out.
The courtesy lamps will turn OFF immediately if the ignition switch is turned to the ON position or approximately 20 seconds after all doors are closed.
The courtesy lamps are controlled by the body control module (BCM). Inputs from the dome lamp switch and the door ajar switches are monitored by the BCM. When a door ajar switch is closed, or the dome lamp switch is turned to the ON position, the BCM supplies the B+ for the courtesy lamps.
With out a factory Tech2 scan tool or equivalent an knowing how these systems work ,you best bet is to take your vehicle to the dealer or some other ASE certified repair shop !
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