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Home >> Mazda >> 2011 >> CX-7 s Touring, 2.3 3, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [L3 With TC] >> Air Fuel Ratio (A/F) Sensor, Heated Oxygen Sensor (Ho2S) Inspection >> HO2S Circuit Open/Short Inspection >> Notes

HO2S Circuit Open/Short Inspection: Notes

Fig 1: Identifying HO2S Connector End View With Terminals Layout
G06724868Courtesy of MAZDA MOTORS CORP.
Fig 2: Identifying PCM Connector End Views With Terminals Layout
G04859829Courtesy of MAZDA MOTORS CORP.
  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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