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Inspection Using An Oscilloscope (Reference) (Without Coolant Control Valve)
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Fuel pump control module (diagnostic) signal
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Fuel pump control module (diagnostic) signal
Courtesy of MAZDA MOTORS CORP.
PCM terminals
2AM (+)-body ground (-)
Oscilloscope setting
2 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition
Idle after warm up