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HO2S heater control
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HO2S heater control
Fig 1: HO2S Heater Control Voltage Signal Waveform
Courtesy of MAZDA MOTORS CORP.
PCM terminals
2B(+) - body ground(-)
Oscilloscope setting
5 V/DIV (Y), 1 s/DIV (X), DC range
Vehicle condition
Idle (after warm up)