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CX-5 Touring, FWD
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Repair and Diagnosis
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Different car
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Section 288 (Engine Control System)
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PCM Inspection
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Inspection Using An Oscilloscope (Reference)
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Fuel Pump Control Signal
Fuel Pump Control Signal
WARNING:
This page is about a different car, the 2018 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Fuel Pump Control Output Voltage Signal Graph
Courtesy of MAZDA MOTORS CORP.
PCM terminals
2AP(+)-body ground(-)
Oscilloscope setting
5 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
Idle after warm up