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.
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HOMESERVICE MANUALSVOLVO2007XC90 AWD V8-4.4L VIN 85 B8444SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSAUD CODES (AUDIO MODULE)AUD-0029DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2007 Volvo XC90 AWD V8-4.4L VIN 85 B8444S
Diagnostic Trouble Code (DTC) Information
2007 Volvo XC90 AWD V8-4.4L VIN 85 B8444SSECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information AUD-0029
Condition
The Audio module (AUD) checks the signal in the signal cable to the loudspeaker in the left-hand front door.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal in the signal cable to the loudspeaker in the left-hand front door is too low.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Activated control module.
Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute value
- None.
Possible source
- Short-circuit to ground in the signal cable between the control module and the loudspeaker in the left front door.
Fault symptom[s]
- No sound from loudspeakers
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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.