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2004
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A6 Quattro Sedan (4B2) V8-4.2L (AWN)
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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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Manufacturer Code Charts
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Transmission Control Systems
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01L, 5 speed A/T AWD
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VAG Codes
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DTC 18263
DTC 18263
DTC 18263 / P1855
Note to DTC 18263 / P1855 (CAN-Bus):
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The information exchange between the Engine Control Module (ECM) and TCM occurs via the CAN-BUS. All information signals go through 2 wires.
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Function of CAN-BUS