LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2012 >> 5 L4-2.5L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Camshaft Position Sensor >> Testing and Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Camshaft Position Sensor: Testing and Inspection





CAMSHAFT POSITION (CMP) SENSOR INSPECTION [MZR 2.5]

Visual Inspection

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable. Removal and Replacement

3. Remove the plug hole plate. Service and Repair

4. Disconnect the CMP sensor connector.

5. Remove the CMP sensor. Service and Repair

6. Verify that there are no metal shavings on the CMP sensor.

- If there is a malfunction, remove any metal shavings that are adhering.

Voltage Inspection

1. Idle the engine.

2. Measure the CMP signal and verify that rectangular waves are produced. Component Tests and General Diagnostics

- If not as specified, replace the CMP sensor. Service and Repair