Mazda 3 Service Manual: Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / Engine Assembly / Valvetrain, Cylinder Head / Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Visual Inspection

CAUTION:

When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Remove the plug hole plate..

4. Disconnect the CMP sensor connector.

5. Remove the CMP sensor..

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

Remove any metal shavings that are adhering.

Voltage Inspection

CAUTION:

When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.
If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.

1. Idle the engine.

2. Measure the CMP signal and verify that rectangular waves are produced..

If not as specified, replace the CMP sensor..

Valvetrain, Cylinder Head

...

Camshaft Position (CMP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]

CAUTION: When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfu ...

Other materials:

If your vehicle has to be stopped in an emergency
In rare emergency situations where normal stopping is not possible, follow this procedure to safely bring your Subaru Solterra to a halt. Stopping the vehicle 1. Firmly press the brake pedal using both feet and maintain steady pressure. Avoid repeatedly pumping the brake pedal, as this may redu ...

Forced Ignition On [With Advanced Keyless Entry And Push Button Start System]
NOTE: In order to perform a forced ignition ON, the M-MDS (IDS) is necessary. If the servicing is being done outside of an Authorized Mazda dealership, contact an Authorized Mazda dealership for instructions. The forced ignition ON procedure forces a power supply to each part w ...

Using LATCH Lower Anchor
Your Mazda is equipped with LATCH lower anchors for attachment of specially designed LATCH child-restraint systems in the rear seats. Both anchors must be used, otherwise the seat will bounce around and put the child in danger. Most LATCH child-restraint systems must also be used in conjunc ...