no sir,it does not matter if the sensor is attached to the pad or not.It's not really a sensor like magnetic ones or even temp sensors.Its just a wire that breaks when pads are worn down far enough.Rather than going to lexus to get this part,forgetting about changing your pads and have the same...
On the first gen ls's,there are brake pad wear indicator sensors.I had to resurface my rotors and noticed wires attached to one end of my pad.the "sensors" are nothing more than a single wire that is looped which creates a closed circuit(per pad).When the pads wear down far enough,it will allow...
sorry for the late response...actually,each sensor is a closed circuit.When the pads do wear down far enough,it allows the rotor to eat away the breaking point of the wire and set off your brake pad wear indicator.Look for yourself,it's attached to the pad.