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Home >> Mazda >> 2008 >> 5 Touring, 2.3 3 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (L3) >> Front Heated Oxygen Sensor (Ho2S) Inspection [L3] >> Front HO2S Circuit Open/Short Inspection (Sensor) >> Notes
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Front HO2S Circuit Open/Short Inspection (Sensor): Notes

Fig 1: Identifying Front Heated Oxygen Sensor Connector Terminals
G05543251Courtesy of MAZDA MOTORS CORP.
  1. Disconnect the PCM connector.
  2. Disconnect the front HO2S connector.
  3. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)
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