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Mazda
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2012
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CX-7 s Touring, 2.3L Eng VIN L, AWD
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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Engine Control System [2.3L L3 With TC]
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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Fan control module signal
Fan control module signal
Fig 1: Fan Control Module Signal Graph
PCM terminals
1R (+)-body ground (-)
1AE (+)-body ground (-)
Oscilloscope setting
5 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
Idle after warm up (no load, P/S off, A/C off)