Door Lock / Module Fix
Thread Starter
Burning Brakes
Joined: Oct 1999
Posts: 920
Likes: 2
From: Rogers, AR, USA
Door Lock / Module Fix
If you're under warranty, go back to the dealer, but if you're on your own nickle, you may want to try this. I posted this last week but think many of you with the problem may have missed it.
You can cut a 3/8 square hole in the top center circut board ends of the relay's, which are located on the module circut board. The case is thin plastic and will cut easily with an exacto knife. This will expose the contacts for the solenoids.
Stick emery cloth inbetween the contacts, press the contact points closed with something small like a toothpick and pull the emery cloth out. A few times of this and the contacts will be clean. Tape the hole over and put everything back together. Mine's been working fine since the cleaning of the contact points.
A little additional information on the relay's would be helpful. There is one relay to pull the solenoid down to lock the door. There is a second relay that reverses the polarity and pulls the solenoid up to unlock the door. The solenoid pulls quite a bit of current and creates a significant electrical arc across the contact points each time the relay is activated. This large arc can leave a carbon deposit on the contacts that will sometimes insulate the contacts from each other, resulting in a locking or unlocking action that will no longer work. A few strokes of the emry cloth, on both contacts, will usually clean the deposits away and every thing will work normally.
There has been some posts that indicate there are new solenoids that pull less current and will reduce the arcing problem. I'm not sure on this but would be something to look into.
You can cut a 3/8 square hole in the top center circut board ends of the relay's, which are located on the module circut board. The case is thin plastic and will cut easily with an exacto knife. This will expose the contacts for the solenoids.
Stick emery cloth inbetween the contacts, press the contact points closed with something small like a toothpick and pull the emery cloth out. A few times of this and the contacts will be clean. Tape the hole over and put everything back together. Mine's been working fine since the cleaning of the contact points.
A little additional information on the relay's would be helpful. There is one relay to pull the solenoid down to lock the door. There is a second relay that reverses the polarity and pulls the solenoid up to unlock the door. The solenoid pulls quite a bit of current and creates a significant electrical arc across the contact points each time the relay is activated. This large arc can leave a carbon deposit on the contacts that will sometimes insulate the contacts from each other, resulting in a locking or unlocking action that will no longer work. A few strokes of the emry cloth, on both contacts, will usually clean the deposits away and every thing will work normally.
There has been some posts that indicate there are new solenoids that pull less current and will reduce the arcing problem. I'm not sure on this but would be something to look into.
