I have been having an intermittent issue that started two days ago. Door locks have always worked fine. Now all of a sudden, most of the time either the key fob or door switch opens only the drivers door with all others failing to open. I can hear the relay click behind the dash but nothing opens. But here is where it gets strange. Every once in a while they work great. All of them. I can hit the switch 10 times and on the eleventh it works great. And sometimes once that happens it works great for ten or so times and then stops working again. I'm thinking it can only be relays or a bad electrical connection. All the searching I have done says replace the actuator motors but that makes zero sense here, to me at least. How hard is it to access and find the relays? Any suggestions?
Intermittent door locks
- Thread starter mr111
- Start date
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- Thread starter
- #3
I may have stumbled onto my problem. Driving 3 hours from home all highway suddenly my car wouldn't start. I checked the battery and noticed quite a bit of corrosion. After cleaning them off and getting a jump, all is well...including the locks. I suspect the bad connection wasn't giving the locks enough juice to open the doors. Hopefully that was the root of the problem and it doesn't resurface.
I have this same issue. My Fob unlocks only the driver's door. When I manually unlock, only the driver's side door unlocks. I can hear it trying to unlock all the other doors, but nothing happens. For a while they would intermittently work, now i've gone a few months with nothing but the driver's door unlocking. I'm also thinking electrical issue. Any help would be much appreciated.
Also, i have replaced the driver's door and passenger door actuators which did nothing. I've also tried a new body control module and that did not fix the issue. Not sure where to go now other than trying to figure the issue out with the wiring diagram.
Also, i have replaced the driver's door and passenger door actuators which did nothing. I've also tried a new body control module and that did not fix the issue. Not sure where to go now other than trying to figure the issue out with the wiring diagram.
- Thread starter
- #5
So after 6 months I haven't had a recurrence of the lock issue. I would check your battery and ground connections. For me it seems like the bad terminal connection failed to give the lock solenoids enough juice to operate. Not sure how on earth there was enough juice to start the car but not fully operate the locks, but that's the only explanation that I can come up with for the symptoms and cure.
Bad batteries/bad connections can cause many weird symptoms that you would never expect. Members on here have reported electrical problems with their dash lighting up like crazy just due to bad/corrosive battery terminals. The first place you always check if you have a weird electrical issue is the battery.