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Home >> Mazda >> 2007 >> CX-9 Touring, 3.5 Y, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (MZI-3.5) >> Front Heated Oxygen Sensor (Ho2S) Inspection >> Circuit Open/Short Inspection >> Notes
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Circuit Open/Short Inspection: Notes

  1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION .)
  2. Inspect the following wiring harness for open or short (continuity check).
    Fig 1: Identifying Front HO2S & PCM Related Connector Terminals
    G04969705Courtesy of MAZDA MOTORS CORP.
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