Question about 1998 Oldsmobile LSS
Driver or passenger button will unlock the doors but not lock them.
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Posted on Jan 02, 2017
If you would remove the door panel again, with the window rolled up, inspect the piece of linkage that is attached to the lock cylinder. It is held to the lock cylinder by a clip, then follow it down to where that same piece of linkage attaches to the door lock assembly. It is also held in place there by a clip, or at least it should be.
Insert a key in the outside of the lock cylinder and attempt to move the linkage. If there is a restriction, follow the linkage to find out why. It may be that the linkage has dropped off, or it may be the lock mechanism has jammed.
The reason it works from the inside is because a different piece of linkage operates the lock mechanism.
If you would like to contact me again about this or other problems, feel free to do so.
ASE Master Technician
Posted on Nov 25, 2008
SOURCE: 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.
Posted on Jan 28, 2009
SOURCE: Lock wont open!
You have to remove the door panel and manually move the lock release rods inside of the door it could prove to be vary difficult. A body shop is the next step if this proves worthless.
Posted on Jan 29, 2009
READ YOUR MANUAL. THERE IS A SEQUENCE INVOLVING REMOVING A FUSE WHICH RESETS THE ELECTRIC DOOR OPENER. IT IS DESCRIBED IN THE MANUAL. EASY TO DO ONE YOU HAVE THE BOOK IN HAND.
Posted on Apr 27, 2009
Any of these three causes may apply to your situation of your driver's door not power unlocking, specifically the malfunctioning of the 1) relay system, 2) switch motor, or 3) the switch/button itself. Here's a handy diagnostic article that explains this:http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Locks_Power_Locks_Do_Not_Lock_When_Pressing_Locking_Switch_Button.htmThis should lead you to the correction of your door's failure to unlock.Brad
Posted on Jun 08, 2009
Tips for a great answer:
DTC B3133 All Door Unlock Circuit High
Aug 10, 2016 | Cars & Trucks
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Sep 16, 2015 | Cars & Trucks
DOOR LKS fuse
Driver door lock actuator
Driver door lock switch
GMLAN serial data link
Keyless entry transmitter
Passenger door lock actuator
Passenger door lock switch
Remote control door lock receiver (RCDLR)
The DR LCK fuse supplies battery voltage to the body control module (BCM) for the power door lock system. The BCM supplies and monitors a reference voltage to the driver and passenger door lock switches through the door lock switch lock/unlock signal circuit. Each door lock switch receives ground at G300 which is also the ground for the door lock and unlock relays located in the BCM. When a door lock switch is placed in the lock position, the reference voltage is switched to ground and the BCM senses 0.0 volts on the door lock/unlock signal circuit. When a door lock switch is placed in the unlock position, the reference voltage is switched to ground through a 1.5k ohm resistor that is internal to each of the door lock switches and the BCM senses approximately 2.9 volts on the door lock/unlock signal circuit. The BCM interprets what position the activated door lock switch was placed in based on the voltage drop.
The BCM, upon receipt of a lock or unlock switch signal, will switch the appropriate door lock/unlock relay coil control circuit to ground causing the appropriate door lock/unlock relay to energize. With the relay energized, voltage is applied to the door lock actuator control circuit causing the door to either lock, or unlock depending on what command was received from the power door lock switch or remote control door lock receiver (RCDLR). When a power door lock/unlock relay is not energized, the switch contacts are normally grounded through the BCM which provides ground to the appropriate door lock actuator for the lock/unlock function being performed. The power door lock/unlock functions are performed by reversing the flow of voltage through the door lock actuator control circuits. The BCM has three internal drivers for the power door lock system. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked separately from the passenger door. For additional information concerning keyless entry, refer to Keyless Entry System Description and Operation.
This is one you may want to take to dealer or some other ASE certified repair shop ! To do this right you need a Tech 2 scan tool !
Ignition ON, observe the scan tool Door Lock Switch parameter while using the driver and passenger door lock switches. The parameter should change from Idle to Lock and Unlock.
If the value does not change, refer to Door Lock Switch Malfunction.
Command the doors to LOCK and UNLOCK with the scan tool, the door lock actuators should LOCK and UNLOCK when changing between the commanded states.
If one or more doors do not LOCK or UNLOCK, refer to Door Lock Malfunction.
Aug 12, 2015 | 2009 Pontiac Solstice Convertible
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 !
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