The TDC (top dead center) positioning sensor is another name for your crankshaft position sensor. This sensor measures the position of your crankshaft and helps with the proper firing of your spark plugs when you start your engine. The TDC sensor on the '97 Honda Accord is located on the underside of the engine block. Replacement TDC sensors can be purchased at your Honda dealership. This is not a difficult repair and can be done in about 15 minutes.
Park your Accord on a flat surface. Pop the hood and remove the negative battery cable using the socket set.
Jack up the front end of your Accord and slide jack stands under the front frame to support the vehicle
Find the TDC sensor located on the passenger underside of your Accord's engine block, then remove the plastic wiring harness connected to the back of it by hand.
Use your wrench to loosen and remove the Accord's old TDC sensor. Screw in the new sensor with your hand and tighten it with your wrench. Plug the wiring harness into the TDC sensor.
Replace your Accord's negative battery cable and lower your vehicle down from the jack stands.
