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Home >> Mazda >> 2010 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [L3] >> Air Fuel Ratio (A/F) Sensor Inspection >> A/F Sensor Heater Circuit Open/short Inspection >> Open circuit

Open circuit

If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- A/F sensor terminal A and main relay terminal C
- A/F sensor terminal E and PCM terminal 2A

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