Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSVOLVO2004S80 L6-2.9L TURBO VIN 91 B6294TREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSAUM CODES (AUDIO MODULE)AUM-46FFPERMANENT FAULTNOT CONNECTED OR COMMUNICATION PROBLEMS. PERMANENT FAULT
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294T
Not Connected or Communication Problems. Permanent Fault
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294TSECTION Not Connected or Communication Problems. Permanent Fault
Not connected or communication problems. Permanent fault
Checking contact resistance and oxidation
Check 10 CD changer and head unit/audio control module connectors for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check cable between the amplifier #D6 and head unit/audio control module #D6 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.
Other information:
- To access/replace the amplifier, see Windshield antenna / amplifier, CD player, replacing Windshield Antenna / Amplifier, CD Player, Replacing.
- To access the 10 CD changer, see Windshield antenna / amplifier, CD player, replacing Windshield Antenna / Amplifier, CD Player, Replacing.
- To access/replace head unit/audio control module , see Radio cassette player, replacing Radio Cassette Player, Replacing.
- To connect the breakout box, see Connecting the breakout box, Audio control module Connecting the Breakout Box.
- For information about signals and connectors, see Signal specification, audio control module Signal Specification
If the 10 CD changer is now OK, the fault was due to a bad connection in the connectors.
Is the 10 CD changer OK?
Yes - FAULT FOUND
No - Checking wiring and components
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Checking wiring and components
Check cable between 10 CD changer #1, #2, #3, #4 and #5 and head unit/audio module #E1, #E2, #E3, #E4 and #E5 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.
Other information:
- To access the 10 CD changer, see Windshield antenna / amplifier, CD player, replacing Windshield Antenna / Amplifier, CD Player, Replacing.
- To access/replace head unit/audio control module , see Radio cassette player, replacing Radio Cassette Player, Replacing.
- To connect the breakout box, see Connecting the breakout box, Audio control module Connecting the Breakout Box.
- For information about signals and connectors, see Signal specification, audio control module Signal Specification and Signal specification, audio control module Signal Specification.
Select "Continue" when the fault has been remedied.
Continue - Verification
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reinstall connectors, components etc.
- Ignition on.
Check that CD changer functions.
Does the CD changer function?
Yes - Verification completed
No - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit Fault-Tracing
No - Attempt New Test
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Attempt New Test - Checking contact resistance and oxidation
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RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.