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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 >> Immobilizer/Start Inhibition (2008-10) >> Diagnostic Functions >> Notes
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Diagnostic Functions: Notes

The master unit for the immobilizer system is the central electronic module (CEM). This is also the module which stores diagnostic trouble codes (DTC) for faults in the immobilizer system.