Allroad Quattro V6-2.7L Turbo (APB) (2002)
Radio/Stereo: All Technical Service Bulletins
Radio - Won't Turn ON/Low Illumination Intensity
Group: 91
Number: 02-04
Date: Apr. 16, 2002
Subject:
Radio, Will Not Turn On, Radio Illuminates at a Very Low Intensity
Model(s):
All with Symphony II Radio
2002
Condition
Radio will not turn ON, radio illuminates at a very low intensity.
Removing radio fuse or disconnecting radio connector and reinstalling (after approx. 10 seconds) results in correct operation of radio.
Service
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Connect the VAS 5051/VAS 5052 Diagnostic tool to the Data Link Connector (DLC).
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Switch ignition ON.
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From Diagnostic tool Start-up screen, select "Vehicle self diagnosis".
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Select Address Word 56 "Radio" (arrow).
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Check software level (arrow).
If software level is 0007 or 0050, Software has been updated to correct this condition:
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Continue with radio diagnostics.
If software level is 0004 (shown) or 0005:
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Replace radio, (code as necessary see Guided Fault Finding - A6, (B6-A4) models see Repair Manual - TT, 54, A8 models).
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Clear any stored DTC's.
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Check correct operation of radio functions.
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Program Client's preset radio stations.