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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Entertainment >> Diagnostic Information & Procedures >> DTC B1025, B1035, B1045, Or B1055 >> Circuit Description

Circuit Description

When the radio is powered up, the radio supplies low level audio signals to the speakers. If the vehicle is equipped with an audio amplifier, the amplifier will boost the signal sent to the speakers.