Its most likely those door interlock switches, the bracket that holds those switches in place, or the actuator on the door. Most manufacturers suggest if one interlock switch has gone bad you should just replace all of them.
However, they are very easy to test with a meter. Make sure you draw a very clear wiring diagram before pulling wires, also handy to label each switch in advance with a sharpie before starting.
These switches may have three terminals on them, look carefully and they will be labled... "Com" for the Common, "NO" for the Normally Open and "NC" for the Normally Closed. If they only have two terminals on them they will still be labeled Com and either NC or NO, same applies.
With your meter set to read Ohms, put one probe on the Com terminal, touch your other probe to the one that says NC, without the switch pushed in you should read pretty close to zero ohms (full reading) on your meter. Now push the switch in with your meter on these same terminals, once depressed you should get absolutely no reading on your meter at all between Com and NC.
Now do the same testing between Com and NO, without the switch depressed you will get no reading on your meter between Com and NO. Depress the switch with your meter on these two terminals and you should get about 0 ohms on your meter (full reading).
Testing between NO and NC terminals and no matter what the switch position is you should never get a reading.
If you can see the switches while opening and closing the door look carefully at them and make sure they at least look like they are making and breaking as you open and close the door. You can also usually hear a faint click from the switch when its in your hand and you depress and release the actuator on them, usually, not always.
Last edited by AmpDraw : 04-10-2008 at 06:21 PM.
Reason: Typo
| 
