Code 15: (Oxygen Sensor)

WARNING: This page is about a different car, the 1994 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Trouble Code No. 15 Diagnostic Chart (Oxygen Sensor )

Courtesy of MAZDA MOTORS CORP.

Fig 2: Trouble Code No. 15 Circuit Diagram

Courtesy of MAZDA MOTORS CORP.