they are in front of the tranny, by the motormounts. as for a manual you could get chilton's. i think that's where i noticed the tip on how to diagnose them: you need to undo the plugs and check for resistance on them between the wires and the ground of the car. you should get a resistance of 12-24ohms, then aply bettery power to them. you should hear them click
__________________
|