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Mazda
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2006
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6 L4-2.3L
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Repair and Diagnosis
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Starting and Charging
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Charging System
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Alternator
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Field Coil
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Testing and Inspection
Field Coil: Testing and Inspection
Generator field coil control signal
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PCM terminals: 2AI(+)-body ground(-)
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Oscilloscope setting:
0.5 V
/DIV (Y),
1 minute
/DIV (X), DC range
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Vehicle condition: Idle after warm up (no load, P/S off, A/C off)