Camshaft Position Sensor (Millenia 2.3L)

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Mazda Tribute, 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, and 2002 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Camshaft Position (CMP) sensor is located on right front of engine. Disconnect CMP sensor harness connector. Check for continuity between CMP sensor connector terminals "B" (Red/Black wire) and "C" (Yellow/Black wire). If continuity is present, replace CMP sensor. If continuity is not present, check for short or open circuit between following:

CMP sensor 4-pin harness connector terminal "B" and main relay 4-pin harness connector terminal "D" (Red/Black wire).
CMP sensor 4-pin harness connector terminal "C" and PCM 34-pin harness connector terminal "4F" (Yellow/Black wire).
CMP sensor 4-pin harness connector terminal "A" and PCM 34-pin harness connector terminal "4D" (Black/Blue wire).

Repair open or short circuit in wiring harness as necessary.