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Section 45 (Security And Lock System)
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LF Control Unit Inspection
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Inspection Using an Oscilloscope (Reference) Pattern 1
Inspection Using an Oscilloscope (Reference) Pattern 1
WARNING:
This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
LF control unit: L (+) <==> body ground (-)
Oscilloscope setting: 2 V/DIV (Y), 100 ms/DIV (X), DC range
Fig 1: LF Control Unit Signal Waveform
Courtesy of MAZDA MOTORS CORP.