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Mazda
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2004
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3 i, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System
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Engine Coolant Temperature (ECT) Sensor Inspection
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Circuit Open/Short Inspection
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Short circuit
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Short circuit
If there is continuity, there is a short circuit. Repair or replace the wiring harness.
ECT sensor terminal A and power supply
ECT sensor terminal A and body GND
ECT sensor terminal B and power supply