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Resistance Inspection

Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI 3.7 V6] .)
Remove the CMP sensor connector.
Measure the resistance between CMP sensor terminals A and B.

If not within the specification, replace the CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION .)

CMP sensor resistance

800-1,320 ohms [18-28°C {65-82°F}]

Fig 1: Camshaft Position Sensor Connector Terminals

Courtesy of MAZDA MOTORS CORP.