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Home >> Volvo >> 2009 >> V70 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Charging System, Electrical Control Modules, Engine Control Module (ECM) - Design And Function >> Headlamp Control Module (HCM) (2010) >> Diagnostic Functions >> Reading Off Input And Output Signals
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Reading Off Input And Output Signals

This function can be used to continuously read off the status of the control module's input and output signals.

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