I've been having trouble with my master power window switch system. I know it's a switch problem so I open it up (against Dan's warning about the springs and other parts falling out).
You remove the switch assembly first by popping the front of the switch out with a wide thin screwdriver or putty knife. Then you remove the switch connector by pushing down the retaining clip.
Clean all the contacts on both sides.
Then turn the switch upside down and remove the screws and separate the trim bezel from the switch. Then remove the screws that hold the top of the switch to the bottom of the switch but DON'T separate the halves until you turn the switch upright over a well lit table.
Once you open the top plastic, you will be dealing with small aluminum switch rocker contacts, two small springs and likely the master window power switch. The master power window switch is probably the trickiest little part. It rises up and down in a channel. On the front side of the switch is a small spring that is anchored on a post. The short end goes up top in the recessed area and the longer end travels up and down a small channel to allow the lock/unlock feel. Likely that you will have to put that back on but it's easy after a few tries. Once that's on, you just make sure the contact pins on the opposite side are pushed in enough to slide inside the channel.
Clean all the contacts, try a little di-electric grease on the contacts if you're have been arcing.
My biggest challenge has been the mechanical switch on the driver side door. It consists of an electro-magnet that engages when the switch is pushed down. Upon reaching the bottom, it releases (supposedly). I had a tough time making this work and realized that there is wear on the switch that doesn't allow it to engage the switch. One way I fixed this was to shave the tabs off the back of the toggle switch (carefully remove the clip from the small axle on the switch to do this and slide out the axle enough to release the switch cap.).
With all of your contacts clean, you'll have the best chance of saving some big dollars, reassemble and test.
You remove the switch assembly first by popping the front of the switch out with a wide thin screwdriver or putty knife. Then you remove the switch connector by pushing down the retaining clip.
Clean all the contacts on both sides.
Then turn the switch upside down and remove the screws and separate the trim bezel from the switch. Then remove the screws that hold the top of the switch to the bottom of the switch but DON'T separate the halves until you turn the switch upright over a well lit table.
Once you open the top plastic, you will be dealing with small aluminum switch rocker contacts, two small springs and likely the master window power switch. The master power window switch is probably the trickiest little part. It rises up and down in a channel. On the front side of the switch is a small spring that is anchored on a post. The short end goes up top in the recessed area and the longer end travels up and down a small channel to allow the lock/unlock feel. Likely that you will have to put that back on but it's easy after a few tries. Once that's on, you just make sure the contact pins on the opposite side are pushed in enough to slide inside the channel.
Clean all the contacts, try a little di-electric grease on the contacts if you're have been arcing.
My biggest challenge has been the mechanical switch on the driver side door. It consists of an electro-magnet that engages when the switch is pushed down. Upon reaching the bottom, it releases (supposedly). I had a tough time making this work and realized that there is wear on the switch that doesn't allow it to engage the switch. One way I fixed this was to shave the tabs off the back of the toggle switch (carefully remove the clip from the small axle on the switch to do this and slide out the axle enough to release the switch cap.).
With all of your contacts clean, you'll have the best chance of saving some big dollars, reassemble and test.
job IMHO unless you have groovy shag carpeting or lots of *stuff* in your work area for small parts to hide in.
