A/F sensor heater control

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Fig 1: A/F Sensor Heater Control Voltage Signal Waveform

G08150316

Courtesy of MAZDA MOTORS CORP.

PCM terminals

2A(+) - body ground(-)
Oscilloscope setting
5 V/DIV (Y), 200 ms/DIV (X), DC range
Vehicle condition
Idle (after warm up)