XC90 L5-2.5L Turbo VIN 59 B5254T2 (2004)
Auxiliary Input / Output Jack: Testing and Inspection
Checking the auxiliary input (AUX)
Fault-tracing information
If the auxiliary input (AUX) does not function the fault could be due to:
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Wiring or contact resistance in the terminals
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Defective rear seat entertainment module (RSE)
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The AUX-panel
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Externally connected component.