mystery switch problem?

[bedrck46]

prints attached

 

[simbre]

Andy, this is how I did the test:
I ran two jumper leads straight off the motor blade connectors. One lead went directly to the positive post on a 12v external btty. The other lead went to the truck frame. When nothing happened I then switched the leads on the motor blade connectors. Again, nothing happened.
My test was not quite what you mentioned. Is there a difference?

Or bedrck46, did I not do the test correctly?

Tks

 

[bedrck46]

my opinion yes the motor is not the ground connection. one of the motor leads will get connected to ground by the position of the switch and the other lead will get connected to the +12 and when the switch is pressed to the up position the motor will run in one direction when the switch is pressed to the down position the voltage thru the switch is reversed causing the motor to reverse.

If I were you I would still take a volt meter or test lamp and check for voltage at the connector the connects to the motor lead connector that way you will know if the switches are good

 

[ExpeditionAndy]

Andy you need to look at the wiring for the motor The motor has two leads and one of the leads get grounded thru the switch and when the switch is pressed the switch is what caused the lead to go to ground and when the switch is pressed in the other direction it cause the voltage to flow in the other direction If you like I'll send a pic of the print

Okay, I misunderstood what you said I thought you said the motor was grounded and that you either sent voltage through one of the leads depending on the direction you wanted the motor to run. Sorry about that.

 

[simbre]

Ok guys. I'm doing something wrong. I know this is simple but I'm doing something wrong. I got the new motor. Prior to installing I wanted to check it with the same jumper lead test as on the old motor. Result: nothing. I tried several wiring variations but nothing. I'm thinking I'm just not conducting the jumper lead test correctly. Please check my procedure: I have 2 pieces of wire (jumper leads). One wire: I attach one end to my 12v boat btty positive. The other end I touch one of the motor blades. Next wire: I touch the other motor blade and then a ground source (truck frame). Is that correct? I also changed this up a bit for a second test. I leave the positive jumper lead as is. But, I take the other lead and do this- I attach it to the 12v source btty negative post and merely ground the other end to truck frame. Again nothing.
I'm doing something wrong b/c if the test was correctly set up I'd get a good reading on the new motor. Sorry I'm so elementary on this electrical "stuff". Tks

 

[bedrck46]

Take a look at the second print I sent You will see the left rear motor and you will see a #1 and #2 on that left motor those are the two terminals for the motor Take your jumpers and connect the to the motor then take one lead and connect it to the NEG battery terminal Then take the other lead and just touch the POS battery terminal the motor should run if it doesn't then reverse the leads and try again

 

[simbre]

Tks for the reply. Before I read ur reply I went ahead and hooked the jumpers straight up. Positive and negative on the 12v btty I then touched the motor blades. New motor worked, old motor didn't. I changed out the motors. Now, My switch only raises the window. So now I know I need a new switch. Also, the drivers side master switch panel doesn't operate it at all. The switch at the window works but only up. So maybe I have two bad switches.

 

[simbre]

just checked online at autozone for switches- the single switch for the left rear is $73, the drivers side panel of switches is $57. Amazing that the single switch is more. Oh well.

 

[bedrck46]

again you can check the switches with a ohm meter or volt meter Maybe not the easiest for you but if you know someone that is good with elect circuits see if they can help I had to replace a switch on a friends and we got one from a u-pull-it yard

Also sometimes just cleaning the switches will fix them The do come apart if your careful spray the with electronic contact cleaner

 

[simbre]

Sounds good to me. I will get a buddy to really check the switches with a multi meter and try to salvage one or both of the switches with cleaning. Tks

 

[bedrck46]

Make a copy of the prints I sent and give them to your buddy

 

[simbre]

will do. tks for sending those.

 

[bedrck46]

your welcome Kindly keep the forum updated