Grand Vitara 4WD L4-2.4L (2009)
Engine Control Module: Pinout Values and Diagnostic Parameters
Reference Waveform
Inspection of ECM and Its Circuits
Precautions for ECM Circuit Inspection See: Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic
Overview/Precautions For ECM Circuit Inspection
CAUTION: ECM and its circuits can be checked by measuring voltage and pulse signal with special tool connected. It is strictly prohibited to
connect voltmeter or ohmmeter to ECM with ECM connectors disconnected from it.
Reference waveform
NOTE:
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Waveform analysis is as follows.
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Waveform might change for measurement condition and vehicle'spec.