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Mazda Truck
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1997
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B4000 SE Cab Plus 4WD V6-4.0L OHV
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Description and Operation
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Ignition Diagnostic Monitor Signal
Ignition Diagnostic Monitor Signal
IGNITION DIAGNOSTIC MONITOR (IDM) SIGNAL
IDM signal communicates information by pulse width modulation. IDM circuit is enclosed in
PCM
.