Mazda 3 Service Manual: Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
CAUTION:
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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.
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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.
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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..
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If not as specified, replace the CMP sensor..
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:
Variable Intake Air Shutter Valve Actuator Inspection [Mzr 2.0, Mzr 2.5]
Operation Inspection
1. Remove the air hose..
2. Disconnect the vacuum hose from the variable intake air shutter valve actuator.
3. Connect a vacuum pump to the variable intake air shutter valve actuator.
NOTE:
Covered with a hood, the rod of the variable intake air shutter valv ...
Gps Antenna Feeder Inspection
With Audio Unit (Without Display)
1. Verify that the continuity is as indicated in the table.
If not as indicated in the table, replace the GPS antenna feeder.
With Audio Unit (With Display)
NOTE:
GPS antenna feeder is integrated with the antenna feeder No.4.
1. ...
Starter Interlock Switch Inspection [Mzr 2.0, Mzr 2.5]
CAUTION:
Do not reuse the starter interlock switch if it is removed from the vehicle
even once. Replace with a new starter interlock switch when installing.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the starter interlock switch connec ...