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Home >> Mazda >> 2007 >> 6 s, 4D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 560 (Engine Control System) >> Rear Heated Oxygen Sensor (Ho2S) Inspection >> Rear HO2S Circuit Open/Short Inspection >> Notes

Rear HO2S Circuit Open/Short Inspection: Notes

WARNING: This page is about a different car, the 2007 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the PCM connector.
  2. Disconnect the rear HO2S connector.
  3. Inspect the following wiring harnesses for an open or short circuit. (Continuity Inspection)
    Fig 1: Identifying Rear HO2S Harness Side Connector
    G04323060Courtesy of MAZDA MOTORS CORP.
    Fig 2: Identifying PCM Harness Side Connector
    G04323061Courtesy of MAZDA MOTORS CORP.
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