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Home >> Chrysler >> 2021 >> Voyager LX, Gas >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Amplifier (Amp) - Premium - DTCS B1483-11 To U147E-00 >> Diagnosis And Testing >> B21DD-84-System Voltage-Signal Below Allowable Range >> Theory Of Operation

Theory Of Operation

The Amplifier (AMP) monitors the input circuit voltage to the module. The Amplifier (AMP) sets a DTC if the input circuit voltage is above or below voltage thresholds.