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Mazda
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2009
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5 Touring, 2.3 L
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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Engine Control System (L3)
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Engine Coolant Temperature (ECT) Sensor Inspection [L3]
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Circuit Open/Short Inspection
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Short circuit
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 ground
ECT sensor terminal B and power supply