We have a 2000 Silhouette, the doors lock when the van is put into drive but will not lock when the lock button is pushed on either the driver or passenger side. The unlock button works fine on both sides.
Since the doors unlock when the van is put into park, I cannot lock my vehicle without opening each door & locking them manually & then cannot lock the hatch because the doors will not lock with the key either.
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Re: Power door locks won't work
You need to have someone or yoursef check the body control module with a compatible scan tool. Thats where the problem you are having resides. It may need a software update or replacement. You can also disconnect the battery for a few minutes, that will cause the BCM to reset and may fix it.
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Your problem is the door thinks that it is already locked and closed. You need have the sliding door unlocked, have someone pull the handle as if they were going to open the door and then use a tool to "Open" the latch that normally would hold the door closed.
check for power with a test light and or voltimeter and if there is power conect to wires to see if you can make the locks work up and dowtn and if you can make with two wires open one of the door panel end try puting power to the actuator wires to see if it moves and if dose not muve the actuetor is bad.
The motor is shot. It works a little and overheats, replace the motor . Same thing the the lock acuators. The are trying but have lost the power to move the locks. May as well replace them while the door is apart.
From the back of the front door slide your hand in the sliding door crack and find the child-safety-lever. Push the lever up and/or down while moving the sliding door manual lock/unlock button to the up position. Also works on the non-powered sliding door.
1. Start with key out of the ignition, drivers door is open all others closed and drivers door is unlocked. 2. Insert key into ignition (Do not turn) and pull it out. 3. Perform these steps within 40 seconds. A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting with lock. Use an even pace and try to go about one cycle per second. (1 cycle = 1 lock and 1 unlock.) B. Close, then open drivers door. 4. Perform these steps within 40 seconds. A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting with lock. Use an even pace and try to go about one cycle per second. (1 cycle = 1 lock and 1 unlock.) B. Insert the key in the ignition cylinder. C. Turn the ignition to ON (Do NOT Start) then back to OFF. D. Turn the ignition to ON (Do NOT Start) then back to OFF. E. Remove the key from the ignition. 5. Within 3 seconds the power door locks should cycle automatically indicating successful entry into programming mode. Return to step 1 if the locks do not cycle at this point. 6. Perform these steps within 40 seconds. A. Press the lock and unlock buttons on the remote simultaneously for 1 second. B. Immediately after letting go of the lock and unlock buttons, Press the lock button by itself and hold for 2 seconds. Within 3 seconds the door locks should cycle once indicating successful programming. If the door locks don't cycle or cycle twice, repeat steps A and B, your remote has not been accepted. C. Repeat steps A and B in step 6 for each new transmitter. 7. Close drivers door.