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Different variant/trim
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Section 7 (Engine Control System (VIN 5))
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Pcm Inspection
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Without Using The M-MDS
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Inspection Using An Oscilloscope (Reference)
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A/F Sensor Heater Control Signal
A/F Sensor Heater Control Signal
WARNING:
This page is about a different variant/trim than selected.
Fig 1: A/F Sensor Heater Control Wave Pattern Signal
Courtesy of MAZDA MOTORS CORP.
PCM terminals
1CB (+)-body ground (-)
Oscilloscope setting
5 V/DIV (Y), 10 ms/DIV (X), DC range
Vehicle condition
Idle after warm up
Courtesy of MAZDA MOTORS CORP.