A4 1.8L Turbo Diagnostic Trouble Code Identification

NOTE: Vehicle manufacturer does not support diagnostic information using aftermarket scan tools. Limited diagnostic information is available.

A4 1.8L TURBO DTC IDENTIFICATION

Generic Scan Tool Code

VAG Code

Malfunction/Affected Sensor Or Circuit

P0102⁽¹⁾

⁽¹⁾16486

MAF Circuit Low Input

P0103⁽¹⁾

⁽¹⁾16487

MAF Circuit High Input

P0107⁽¹⁾

⁽¹⁾16491

MAP Or Barometric Pressure Low Input

P0108⁽¹⁾

⁽¹⁾16491

MAP Or Barometric Pressure High Input

P0112⁽¹⁾

⁽¹⁾16496

Intake Air Temp Circuit Low Input

P0113⁽¹⁾

⁽¹⁾16497

Intake Air Temp Circuit High Input

P0116⁽¹⁾

⁽¹⁾16500

ECT Circuit Range/Performance Problem

P0117⁽¹⁾

⁽¹⁾16501

ECT Circuit Low Input

P0118⁽¹⁾

⁽¹⁾16502

ECT Circuit High Input

P0121⁽¹⁾

⁽¹⁾16505

TP Sensor Circuit Range/Performance Problem

P0122⁽¹⁾

⁽¹⁾16506

TP Sensor Circuit Low Input

P0123⁽¹⁾

⁽¹⁾16507

TP Sensor Circuit High Input

P0130⁽¹⁾

⁽¹⁾16514

HO2S Circuit Malfunction (Bank 1, Sensor 1)

P0131⁽¹⁾

⁽¹⁾16515

HO2S Circuit Low Voltage (Bank 1, Sensor 1)

P0132⁽¹⁾

⁽¹⁾16516

HO2S Circuit High Voltage (Bank 1, Sensor 1)

P0133⁽²⁾

⁽²⁾16517

HO2S Circuit Slow Response (Bank 1, Sensor 1)

P0134⁽¹⁾

⁽¹⁾16518

HO2S Circuit No Activity Detected (Bank 1, Sensor 1)

P0136⁽¹⁾

⁽¹⁾16520

HO2S Circuit Malfunction (Bank 1, Sensor 2)

P0137⁽¹⁾

⁽¹⁾16521

HO2S Circuit Low Voltage (Bank 1, Sensor 2)

P0140⁽¹⁾

⁽¹⁾16524

HO2S Circuit No Activity Detected (Bank 1, Sensor 2)

P0300⁽²⁾

⁽²⁾16684

Random/Multiple Cylinder Misfire Detected

P0301⁽²⁾

⁽²⁾16685

Cylinder No. 1 Misfire Detected

P0302⁽²⁾

⁽²⁾16686

Cylinder No. 2 Misfire Detected

P0303⁽²⁾

⁽²⁾16687

Cylinder No. 3 Misfire Detected

P0304⁽²⁾

⁽²⁾16688

Cylinder No. 4 Misfire Detected

P0321⁽¹⁾

⁽¹⁾16705

Ignition/Distributor Engine Speed Input Circuit Range/Performance

P0322⁽³⁾

⁽³⁾16706

Ignition/Distributor Engine Speed Input Circuit No Signal

P0327⁽³⁾

⁽³⁾16711

Knock Sensor No. 1 Circuit Low Input

P0332⁽³⁾

⁽³⁾16716

Knock Sensor No. 2 Circuit Low Input

P0422⁽¹⁾

⁽¹⁾16806

Main Catalyst Efficiency Below Threshold (Bank 1)

P0441⁽¹⁾

⁽¹⁾16825

EVAP System Incorrect Purge Flow

P0442⁽¹⁾

⁽¹⁾16826

EVAP System Small Leak Detected

P0455⁽¹⁾

⁽¹⁾16839

EVAP System Gross Leak Detected

P0501⁽¹⁾

⁽¹⁾16885

Vehicle Speed Sensor Range/Performance

P0506⁽¹⁾

⁽¹⁾16890

Idle Control System RPM Lower Than Expected

P0507⁽¹⁾

⁽¹⁾16891

Idle Control System RPM Higher Than Expected

P0560⁽¹⁾

⁽¹⁾16944

System Voltage Malfunction

P0562⁽¹⁾

⁽¹⁾16946

System Voltage Low

P0563⁽¹⁾

⁽¹⁾16947

System Voltage High

P0601⁽¹⁾

⁽¹⁾16895

PCM Memory Check Sum Error

P0604⁽¹⁾

⁽¹⁾16988

PCM Random Access Memory (RAM) Error

P0707⁽⁴⁾

⁽⁴⁾17091

Transmission Range Sensor Circuit Low Input

P0708⁽⁴⁾

⁽⁴⁾17092

Transmission Range Sensor Circuit High Input

P1102⁽¹⁾

⁽¹⁾17510

HO2S Heater Circuit Short to B+ (Bank 1, Sensor 1)

P1105⁽¹⁾

⁽¹⁾17513

HO2S Heater Circuit Short to B+ (Bank 1, Sensor 2)

P1127⁽¹⁾

⁽¹⁾17535

Long Term Fuel Trim (Multiplicative) Too Rich (Bank 1)

P1128⁽¹⁾

⁽¹⁾17536

Long Term Fuel Trim (Multiplicative) Too Lean (Bank 1)

P1136⁽¹⁾

⁽¹⁾17544

Long Term Fuel Trim (Additive) Too Lean (Bank 1)

P1137⁽¹⁾

⁽¹⁾17545

Long Term Fuel Trim (Additive) Too Rich (Bank 1)

P1176⁽¹⁾

⁽¹⁾17584

HO2S Correction Behind Catalyst Limit Attained (Bank 1)

P1196⁽¹⁾

⁽¹⁾17604

HO2S Heater Electrical Malfunction (Bank 1, Sensor 1)

P1198⁽¹⁾

⁽¹⁾17606

HO2S Heater Electrical Malfunction (Bank 1, Sensor 2)

P1213⁽³⁾

⁽³⁾17621

Cylinder No. 1 Fuel Injector Circuit Short To B+

P1214⁽³⁾

⁽³⁾17622

Cylinder No. 2 Fuel Injector Circuit Short To B+

P1215⁽³⁾

⁽³⁾17623

Cylinder No. 3 Fuel Injector Circuit Short To B+

P1216⁽³⁾

⁽³⁾17624

Cylinder No. 4 Fuel Injector Circuit Short To B+

P1225⁽³⁾

⁽³⁾17633

Cylinder No. 1 Fuel Injector Circuit Short To Ground

P1226⁽³⁾

⁽³⁾17634

Cylinder No. 2 Fuel Injector Circuit Short To Ground

P1227⁽³⁾

⁽³⁾17635

Cylinder No. 3 Fuel Injector Circuit Short To Ground

P1228⁽³⁾

⁽³⁾17636

Cylinder No. 4 Fuel Injector Circuit Short To Ground

P1237⁽³⁾

⁽³⁾17645

Cylinder No. 1 Fuel Injector Open Circuit

P1238⁽³⁾

⁽³⁾17646

Cylinder No. 2 Fuel Injector Open Circuit

P1239⁽³⁾

⁽³⁾17647

Cylinder No. 3 Fuel Injector Open Circuit

P1240⁽³⁾

⁽³⁾17648

Cylinder No. 4 Fuel Injector Open Circuit

P1250⁽⁴⁾

⁽⁴⁾17658

Fuel Level Too Low

P1325⁽⁴⁾

⁽⁴⁾17733

Cylinder No. 1 Knock Control Limit Attained

P1326⁽⁴⁾

⁽⁴⁾17734

Cylinder No. 2 Knock Control Limit Attained

P1327⁽⁴⁾

⁽⁴⁾17735

Cylinder No. 3 Knock Control Limit Attained

P1328⁽⁴⁾

⁽⁴⁾17736

Cylinder No. 4 Knock Control Limit Attained

P1337⁽¹⁾

⁽¹⁾17745

Camshaft Position Sensor Short To Ground (Bank 1)

P1338⁽¹⁾

⁽¹⁾17746

Camshaft Position Sensor Open Circuit Or Short To B+ (Bank 1)

P1386⁽⁴⁾

⁽⁴⁾17794

PCM Knock Control Circuit Error

P1410⁽¹⁾

⁽¹⁾17818

Fuel Tank Ventilation Valve Circuit Short To B+

P1425⁽¹⁾

⁽¹⁾17833

Fuel Tank Ventilation Valve Short To Ground

P1426⁽¹⁾

⁽¹⁾17834

Fuel Tank Ventilation Valve Open

P1471⁽¹⁾

⁽¹⁾17879

EVAP Leak Detection Pump Short To B+

P1472⁽¹⁾

⁽¹⁾17880

EVAP Leak Detection Pump Short To Ground

P1473⁽¹⁾

⁽¹⁾17881

EVAP Leak Detection Pump Open Circuit

P1475⁽¹⁾

⁽¹⁾17883

EVAP Leak Detection Pump Malfunction/Signal Circuit Open

P1476⁽¹⁾

⁽¹⁾17884

EVAP Leak Detection Pump Malfunction/Insufficient Vacuum

P1477⁽¹⁾

⁽¹⁾17885

EVAP Leak Detection Pump Malfunction

P1500⁽³⁾

⁽³⁾17908

Fuel Pump Relay Circuit Electrical Malfunction

P1501⁽³⁾

⁽³⁾17909

Fuel Pump Relay Circuit Short To Ground

P1502⁽³⁾

⁽³⁾17910

Fuel Pump Relay Circuit Short To B+

P1505⁽¹⁾

⁽¹⁾17913

CTP Switch Does Not Close (Open Circuit)

P1506⁽¹⁾

⁽¹⁾17914

CTP Switch Does Not Open (Short To Ground)

P1543⁽³⁾

⁽³⁾17951

Throttle Actuation Potentiometer Signal Too Low

P1544⁽³⁾

⁽³⁾17952

Throttle Actuation Potentiometer Signal Too High

P1545⁽¹⁾

⁽¹⁾17953

Throttle Position Control Malfunction

P1546⁽⁴⁾

⁽⁴⁾17954

Boost Pressure Control Valve Short To B+

P1547⁽⁴⁾

⁽⁴⁾17955

Boost Pressure Control Valve Short To Ground

P1548⁽⁴⁾

⁽⁴⁾17956

Boost Pressure Control Valve Open

P1555⁽⁴⁾

⁽⁴⁾17963

Charge Pressure Upper Limit Exceeded

P1556⁽⁴⁾

⁽⁴⁾17964

Charge Pressure Negative Deviation

P1557⁽⁴⁾

⁽⁴⁾17965

Charge Pressure Positive Deviation

P1558⁽¹⁾

⁽¹⁾17966

Throttle Actuator Electrical Malfunction

P1559⁽⁴⁾

⁽⁴⁾17967

Idle Speed Control/Throttle Position Adaptation Malfunction

P1560⁽⁴⁾

⁽⁴⁾17968

Maximum Engine Speed Exceeded

P1602⁽⁴⁾

⁽⁴⁾18010

Power Supply (B+) Terminal 30 Low Voltage

P1606⁽⁴⁾

⁽⁴⁾18014

Rough Road Specification Engine Torque ABS-ECU Electrical Malfunction

P1611⁽¹⁾

⁽¹⁾18019

MIL Call-Up Circuit/TCM Short To Ground

P1612⁽⁴⁾

⁽⁴⁾18020

PCM Incorrect Coding

P1613⁽⁵⁾

⁽⁵⁾18021

MIL Call-Up Circuit Open Or Short To B+

P1624⁽⁶⁾

⁽⁶⁾18032

MIL Request Active

P1640⁽¹⁾

⁽¹⁾18048

Internal PCM (EEPROM) Error

⁽¹⁾	MIL is switched on after 2 trips.

⁽²⁾	MIL is switched on after 2 trips or will blink.

⁽³⁾	MIL is switched on immediately.

⁽⁴⁾	MIL is not switched on.

⁽⁵⁾	MIL is switched on after 2 trips. See appropriate ELECTRONICS CONTROLS article in TRANSMISSIONS.

⁽⁶⁾	MIL is switched on immediately. See ELECTRONICS CONTROLS article in TRANSMISSIONS.