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Home › Mazda › 2007 › CX-9 Touring, 3.5 C, FWD › 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

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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