Operation CHARM
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Audi
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2004
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A4 Cabriolet (8H7) L4-1.8L Turbo (AMB)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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P Code Charts
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P0420
>>
With Manufacturer's Scan Tool
With Manufacturer's Scan Tool
DTC P0420 - P0507:
DTC P0420 - P0563:
