03 malibu

[stroise]

Ok here is the prob. I cant unlock the drivers door with keyless enty. All other doors will work normal. I can unlock with key to get in. I can use the manual switch on the door to unlock and lock all 4 doors. When im sitting in the drivers seat and use the keyless entry to lock all 4 doors the doors will lock. When i use the remote the switch on drivers door wont move to the unlock position. Can the problem be a rod inside the panel. Can there be no voltage going to the latch to unlock the car but there is voltage to just lock it. Im thinking of getting a new latch at the boneyard. What do you guys think that could be the problem. thanks in advance

steven troise
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[brcidd]

The same two wires are used in either lock or unlock, just reversed polarity- so that is not the issue.

The thing I see is GM's lovely sluggish actuators- I have replaced many in pick-up trucks, and vans etc-- seems they get very slow and weak over time and I generally replace them with aftermarket actuators I buy online. They seems very strong and able to do the job.

So when you open up the door- measure the voltage at the actuator and see if it is fine-12 volts positive and negative-- if actuator is sluggish, you can try to lube the rod area- or check for obstructions, but most likely you have a weak actuator that needs to be replaced. I recommend aftermarket, only because they are much less expensive, and you should not get into the same problem as you would from a boneyard. Plus I doubt a boneyard would sell just the actuator--maybe a really good one would..