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VAG Fault Codes & DTC List

Manufacturer and ECU-specific fault-code meanings. Check the stated ECU, model and code format against your diagnostic scan.

VAG fault codes — page 30
CodeMeaningApplicability
P161BGlowplug for Cylinder 2 (Q11): Open Circuit OBD
P161CGlowplug for Cylinder 3 (Q12): Open Circuit DECIMAL
P161CGlowplug for Cylinder 3 (Q12): Open Circuit OBD
P161DGlowplug for Cylinder 4 (Q13): Open Circuit DECIMAL
P161DGlowplug for Cylinder 4 (Q13): Open Circuit OBD
P161EGlowplug for Cylinder 5 (Q14): Open Circuit DECIMAL
P161EGlowplug for Cylinder 5 (Q14): Open Circuit OBD
P161FGlowplug for Cylinder 6 (Q15): Open Circuit DECIMAL
P161FGlowplug for Cylinder 6 (Q15): Open Circuit OBD
P1624MIL Request Signal Active (Check TCM for errors too!) DECIMAL
P1624MIL Request Signal Active (Check TCM for errors too!) OBD
P1624MIL Request Signal Active (Check TCM for errors too!) OEM
P1625Powertrain Data Bus: Implausible Message from TCU DECIMAL
P1625Powertrain Data Bus: Implausible Message from TCU OBD
P1625Powertrain Data Bus: Implausible Message from TCU OEM
P1631Accelerator Position Sensor (G79): Signal too High OBD
P1631Accelerator Position Sensor (G79): Signal too High OEM
P1633Accelerator Position Sensor 2 (G185): Signal too Low OBD
P1633Accelerator Position Sensor 2 (G185): Signal too Low OEM
P1634Accelerator Position Sensor 2 (G185): Signal too High DECIMAL
P1634Accelerator Position Sensor 2 (G185): Signal too High OBD
P1634Accelerator Position Sensor 2 (G185): Signal too High OEM
P1636Powertrain Data Bus: Missing Message from Airbag Controller DECIMAL
P1636Powertrain Data Bus: Missing Message from Airbag Controller OBD
P1636Powertrain Data Bus: Missing Message from Airbag Controller OEM
P1637Powertrain Data Bus: Missing Message from Electric Load Controller DECIMAL
P1637Powertrain Data Bus: Missing Message from Electric Load Controller OBD
P1637Powertrain Data Bus: Missing Message from Electric Load Controller OEM
P1639Accelerator Position Sensor 1/2 (G79/G185): Implausible Signal DECIMAL
P1639Accelerator Position Sensor 1/2 (G79/G185): Implausible Signal OBD
P1639Accelerator Position Sensor 1/2 (G79/G185): Implausible Signal OEM
P1640Internal Control Module: EEPROM Error DECIMAL
P1640Internal Control Module: EEPROM Error OBD
P1640Internal Control Module: EEPROM Error OEM
P1643Please check DTC Memory of Electric Load Controller DECIMAL
P1643Please check DTC Memory of Electric Load Controller OBD
P1643Please check DTC Memory of Electric Load Controller OEM
P1647Check Coding of ECUs on Powertrain Data Bus DECIMAL
P1647Check Coding of ECUs on Powertrain Data Bus OBD
P1647Check Coding of ECUs on Powertrain Data Bus OEM
P1649Powertrain Data Bus: Missing Message from ABS Controller DECIMAL
P1649Powertrain Data Bus: Missing Message from ABS Controller OBD
P1649Powertrain Data Bus: Missing Message from ABS Controller OEM
P164BOil Pressure Switch: Malfunction DECIMAL
P164BOil Pressure Switch: Malfunction OBD
P1650Powertrain Data Bus: Missing Message from Instrument Cluster DECIMAL
P1650Powertrain Data Bus: Missing Message from Instrument Cluster OBD
P1650Powertrain Data Bus: Missing Message from Instrument Cluster OEM
P1653Please check DTC Memory of ABS Controller DECIMAL
P1653Please check DTC Memory of ABS Controller OBD

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