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Circuit Open/Short Inspection (Sensor): Notes

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION .)
  2. Inspect the following wiring harnesses for open or short circuit. (Continuity check)
Fig 1: Heated Oxygen Sensor (HO2S) Harness Side Connector Identification
G01024535Courtesy of MAZDA MOTORS CORP.