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Home › Mazda › 2009 › 5 Touring, 2.3 L › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control System (L3) › Engine Coolant Temperature (ECT) Sensor Inspection [L3] › Circuit Open/Short Inspection › Open circuit

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 2AH
- ECT sensor terminal B and PCM terminal 2AV