Code 36 & 37: Right/Left Oxygen Sensor Heater

WARNING: This page is about a different car, the 1995 Mazda 929. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Trouble Code No. 36/37 Right/Left Oxygen Sensor Heater

Fig 2: Trouble Code No. 36/37 Heated Oxygen Sensor Circuit Diagram