Passat GLS 4Motion V6-2.8L (ATQ) (2002)
Radio/Stereo: All Technical Service Bulletins
Radio - Poor Sound Quality/Insufficient L/H Side Bass
Group: 91
Number: 02-02
Date: Mar 28, 2002
Subject:
Premium VI Radio, Poor Sound Quality, Insufficient Bass on Left Side of Vehicle
Model(s):
All with Monsoon Radio
2002
Condition
Radio exhibits poor sound quality or insufficient Bass on left side of vehicle.
May be caused by wiring reversed on terminals 3 and 7 of tan connector on back of radio.
Service
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With key out of ignition.
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Remove radio See VESIS Repair Group 91-Radio, Telephone, Navigation, Trip computer, "Radio, removing and installing".
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Remove black connector block from radio.
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Inspect tan connector, terminals 3 and 7 (arrows) for proper placement.
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Terminal 3 color code should be black
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Terminal 7 color code should be yellow
If wire colors are incorrect:
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Remove tan connector block from black connector block.
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Remove terminals in cavities 3 and 7.
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Install terminals into correct cavities.
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Reinstall tan connector into black connector block.
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Reinstall black connector block to radio.
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Reinstall radio.
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Check radio for correct sound quality.