mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Engine Controls - MIL ON/Multiple Driveability Concerns|Page 1656 > < Engine Controls - MIL ON/Multiple Driveability Concerns
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There are two types of CMP sensors:

1.

Hall Effect CMP Sensor

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3-pins

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Uses differential voltage across windings to generate a signal

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Waveform appears similar to a sine wave

2.

Variable Reluctance CMP Sensor

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2-pins

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Uses a magnet and Hall Effect device to generate a signal

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Waveform appears as a square wave

DIAGNOSIS USING WDS

NOTE:

Before performing this diagnosis, inspect service history to determine if it is possible that a repair was performed that could lead to incorrect CMP
synchronizer installation.

1.

Run WDS Power Balance test to inspect for possible misfire:

Engine Controls - MIL ON/Multiple Driveability Concerns|Page 1656 > < Engine Controls - MIL ON/Multiple Driveability Concerns