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Mazda
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2005
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3 SP23, 4D Sedan, Standard
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Repair and Diagnosis (Single Page)
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Engine Performance
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Engine Control Systems
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Engine Coolant Temperature (ECT) Sensor Inspection
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Circuit Open/Short Inspection
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Open circuit
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Open circuit
If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
ECT sensor terminal A and PCM terminal 2AK
ECT sensor terminal B and PCM terminal 2AA
Fig 1: Identifying ECT Harness Connector
Courtesy of MAZDA MOTORS CORP.