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Home >> Volvo >> 2001 >> S40 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio Equipment - Removal, Installation, & Inspection (644 Body) >> Entertainment Systems >> Checking amplifier and loudspeaker wiring >> Fault-tracing information

Fault-tracing information

Check that the settings (volume, fade, balance, central volume or effect volume) are not causing the fault symptom.

Check that the sound reproduction from several sources (radio, CD or cassette playing).

Check that all connectors are correctly connected to the audio unit and amplifier.

Check that the loudspeakers are not broken.

Was a fault detected? 



To carry out correct fault-tracing, select one of the following alternatives:

  1. No or poor sound generated from the center loud speaker.
  2. No or poor sound reproduction from one or a number of the car loudspeakers.

Specify alternative 



To carry out correct fault-tracing, select one of the following alternatives:

  1. The car is equipped with an external amplifier.
  2. The car is not equipped with an external amplifier.

Specify alternative