Originally Posted by
CROSSFIRERUSH
Thanks for the clarification Dave & Mark! The other side of the switch reads POM 01. The part that is broken and missing is the sliding portion which activates the sensor switch. When the top is closed that protruding, spring loaded piece slides up to engage the metal tab which in turn depresses the sensor switch (I guess...pizzaguy [Mark] can confirm) when this happens its communicating to the BCM to tell the TCM that the top is closed). Mark, if I've got this wrong please straighten me out.
No. The switch in question is wired in series with the divider switch in the trunk. With the divider up and the top pushed away from the windshield frame, both switches are closed. THey are wired in series, directly to the TCM. This indicates to the TCM that is it safe to start the pump motor. When you pop the top away from the windsheild, the cam moves such that the switch RELAXES, allowing the button on the switch to pop out - this CLOSES the switch to provide closure to supply the ground to the pin on the TCM.
Now, to further clarify this, my sensor switch portion does work. In other words , I can push on the metal tab and hear a definite click. BUT, there is no sliding mechanism to engage that sensor. It's gone on this car.
I'm wondering, because the top when locked down in the up position at the header is NOT getting a signal from my damaged switch that it is closed, that this is causing the top to be confused. There's no beep or red light on when it is closed.
I start the car, doors closed, windows up, release the top raising it 8" from the header, windows automatically go all the way down. Divider is in place and that sensor is engaged, no slop, it's snug. I press the top down button, I hear the pump running and the rear bow of the top disengages from its latch on the tonneau cover and then everything stops. Continuing to press the down button emits a beep and red light flashing.
Your problem is NOT this switch. If this switch was bad, the pump would not run. Same rule goes for the divider switch in the trunk - both switches must CLOSE to provide a ground to tell the pump it's OK to run. This sounds like low fluid or a bad sensor on one of the cylinders.