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Home >> Mazda >> 2010 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [L3] >> Heated Oxygen Sensor (Ho2S) Inspection >> HO2S Heater Circuit Open/short Inspection >> Notes

HO2S Heater Circuit Open/short Inspection: Notes

  1. Disconnect the PCM connector.
  2. Disconnect the HO2S connector.
  3. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)
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