LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 2012 >> Routan S >> Repair and Diagnosis >> External Pages >> Different car >> Section 580 (Information System And Entertainment System) >> Diagnosis And Testing >> Information and Entertainment System >> Symptom Table - Audio System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Symptom Table - Audio System

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM TABLE - AUDIO SYSTEM

Condition Possible Sources Action
  • The audio unit backlighting does not operate correctly
  • Circuitry
  • Audio unit
  • No communication with the audio unit
  • Fuse
  • Circuitry
  • Communication network
  • Audio unit
  • No communication with the digital versatile disc (DVD) player
  • Fuse
  • Circuitry
  • Communication network
  • DVD player
  • The audio unit is inoperative/does not operate correctly
  • Fuse
  • Circuitry
  • Audio unit
  • Poor reception
  • Antenna
  • Antenna connections
  • Noise suppression equipment
  • Antenna module
  • Antenna grid
  • Audio unit
  • Continuous SEEK/SCAN in AM/FM
  • Antenna
  • Antenna connections
  • Noise suppression equipment
  • Antenna module
  • Antenna grid
  • Audio unit
  • Poor quality/distorted/no sound from one or more speakers (not all speakers)
  • Circuitry
  • Speaker
  • Audio unit
  • Poor quality/distorted sound from all speakers
  • Audio unit
  • REMOVE the audio unit. REFER to AUDIO UNIT . SEND it to an authorized audio system repair facility. TEST the system for normal operation after the repair.
  • No sound from all speakers
  • Circuitry
  • Audio unit
  • The auxiliary audio control is inoperative/does not operate correctly - steering wheel controls
  • Circuitry
  • Steering wheel controls
  • Clockspring
  • Audio unit
  • The subwoofer is inoperative
  • Fuse
  • Circuitry
  • Subwoofer amplifier
  • Subwoofer speaker
  • Audio unit
  • The digital versatile disc (DVD) player is inoperative/does not operate correctly - no picture
  • Disc
  • DVD player
  • PRESS the source button (screen is blank in auxiliary module with no video source connected). TEST the system for normal operation.
  • If the concern is still present, REMOVE the DVD player. REFER to DIGITAL VERSATILE DISC (DVD) PLAYER . SEND it to an authorized audio system repair facility. TEST the system for normal operation after the repair.
  • The digital versatile disc (DVD) player is inoperative/does not operate correctly
  • Fuse
  • Circuitry
  • DVD player
  • The digital versatile disc (DVD) player is inoperative/does not operate correctly - remote control does not function correctly
  • Video system
  • INSTALL new batteries in the remote control. If the concern is still present, CONTACT an authorized audio repair facility for further diagnostic test procedures.