Originally Posted by viper8907
got my tester! now i need a chance to check the power..how do i check the switch w/o disconnecting it. or should i disconnect it and put the probe(whatever theya re called) in the plug?
Go ahead and unplug the pushbutton from its connector while you test it.
First, use your meter to test across the two contacts of the pushbutton, to be sure they close when you push the button in.
If your meter has a continuity test setting that beeps when you touch the probes together, you can use that -- it should beep when you attach a probe to each contact and then push the button in.
If you don't have a continuity test setting, use the resistance setting to make sure that the resistance across the two pushbutton terminals goes to infinite when you press the button in.
(Going by the 1993 service manual from here on...)
The wires plugged into the pushbutton are probably light-green with a black stripe, and black with a white stripe. The light-green wire is your power supply, which should be hot when your ignition is On (key in Run position) and your transmission is in Park (or also Neutral on some model years). See if you can measure 12 volts between the light-green supply wire and ground (e.g. any clean metal piece on the door or dash).
The black/white wire runs back from the button to the actuator in the trunk lid, and also takes a pulse from the Remote Keyless Entry controller when you pop the trunk with your keyring remote.
Remember that you are measuring direct-current circuits, so you need to select a DC Volts setting on your meter that will show at least 0-15 Volts DC or higher, and make sure that your Negative test lead (the black one) is your ground connection; test for hot wires with your Positive (red) lead.
If you can't find 12 volts in the hot lead going into the pushbutton, we can stop right here. Otherwise, if it'* hot, and you already verified that your pushbutton is working, then put that all back together and see if you can measure 12 volts where the black/white wire attaches to the trunk lid actuator. You'll need to have an assistant turn the key to Run and press the button for you while you test the lead back there.
Somewhere in all this you'll probably find something that isn't kosher, so get back to us and tell us what you've got. Good luck...