Door lock issue
Melting Slicks
Joined: Mar 2023
Posts: 2,896
Likes: 1,657
From: North Coast
Check the Solenoid and see if it is working properly . You will need to pull the door panel but it is easy to see what is working or not.
GM solenoids are famous for failing only locking and not unlocking.
I assume it will unlock manually if you use the lock on the handle?
GM solenoids are famous for failing only locking and not unlocking.
I assume it will unlock manually if you use the lock on the handle?
Melting Slicks
Joined: Nov 2014
Posts: 3,399
Likes: 1,339
From: Havre de Grace Maryland
Thread Starter
Safety Car
Joined: Dec 2015
Posts: 3,947
Likes: 1,407
From: Canada
Check the Solenoid and see if it is working properly . You will need to pull the door panel but it is easy to see what is working or not.
GM solenoids are famous for failing only locking and not unlocking.
I assume it will unlock manually if you use the lock on the handle?
GM solenoids are famous for failing only locking and not unlocking.
I assume it will unlock manually if you use the lock on the handle?
Melting Slicks
Joined: Jul 2004
Posts: 3,294
Likes: 480
From: Brea CA
90% chance that the door control module for the passenger door has a failed relay in it. This is the most common issue with the lock function.
The relay can be replace with a bit of effort. The circuit board has a silicone like coating on it to protect the components from moisture. There are threads here on doing the repalcement.
Gary
The relay can be replace with a bit of effort. The circuit board has a silicone like coating on it to protect the components from moisture. There are threads here on doing the repalcement.
Gary
Melting Slicks
Joined: Sep 2021
Posts: 2,555
Likes: 1,213
ABS Fixer does door modules too in case you don't want to source the relays and do the soldering yourself.
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Melting Slicks
Joined: Mar 2023
Posts: 2,896
Likes: 1,657
From: North Coast
Ok this tells us the linkage is working.
Now you need to check the power to the Solenoid in the door that actuates the lock open and closed. You need to see it is getting power both ways. If it is the solenoid is likely bad.
Between 2000-2008 GM has solenoid issues in many of their cars. Normally they die one direction.
I had to replace all 4 in my Malibu.
Now you need to check the power to the Solenoid in the door that actuates the lock open and closed. You need to see it is getting power both ways. If it is the solenoid is likely bad.
Between 2000-2008 GM has solenoid issues in many of their cars. Normally they die one direction.
I had to replace all 4 in my Malibu.
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