LEMON Manuals
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Mazda
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2010
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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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Air Fuel Ratio (A/F) Sensor Inspection
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A/F Sensor Heater Circuit Open/short Inspection
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Open circuit
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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