Millenia 2.3L
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, 2002 Mazda MX-5 Miata, and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
CMP sensor is located on right front of engine. Disconnect negative battery cable. Disconnect CMP sensor connector. Using ohm meter, check continuity between CMP connector terminals "B" and "C". If continuity is present, replace CMP sensor. If continuity is not present, check wire harness for open or short circuits. Repair or replace wire harnesses as necessary.