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Audi Engine Codes

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Engine Code Engine Code Description
P1645Data Bus Powertrain missing message f.all wheel drive contr.
P1646Please Check DTC Memory of all wheel drive ECU
P1647Please check coding of ECUs in Data Bus Powertrain
P1648Data Bus Powertrain Malfunction
P1649Data Bus Powertrain Missing message from ABS Control Module
P1650Data Bus Powertrain Missing message fr.instrument panel ECU
P1651Data Bus Powertrain missing messages
P1652Please check DTC Memory of transmission ECU
P1653Please check DTC Memory of ABS Control Module
P1654Please check DTC Memory of control panel ECU
P1655Please check DTC Memory of ADR Control Module
P1656A/C clutch relay circuit short to ground
P1657A/C clutch relay circuit short to B+
P1658Data Bus Powertrain Incorrect signal from ADR Control Module
P1676Drive by Wire-MIL Circ. Electrical Malfunction
P1677Drive by Wire-MIL Circ. Short to B+
P1678Drive by Wire-MIL Circ. Short to Ground
P1679Drive by Wire-MIL Circ. Open
P1681Contr.Unit Programming, Programming not Finished
P1684Contr.Unit Programming Communication Error
P1686Contr.Unit Error Programming Error
P1690Malfunction Indication Light Malfunction
P1691Malfunction Indication Light Open
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