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Mazda
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2003
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Protege5 Automatic
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Repair and Diagnosis
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTC P0443: EVAP Control System Purge Control Valve - Circuit Malfunction
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Possible Causes
Possible Causes
Connector or terminal malfunction.
Open circuit between main relay and purge solenoid valve.
Open or short circuit between purge solenoid valve and PCM.
PCM malfunction.
Purge solenoid valve malfunction.