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Home >> Audi >> 2001 >> A4 Base, 2.8 H, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.8L >> Diagnostic Trouble Code Definitions
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Diagnostic Trouble Code Definitions

NOTE: While limited diagnostic information is available, vehicle manufacturer does not support diagnostic information using aftermarket scan tools. To properly diagnose vehicle, it is recommended to use VAS 5051 scan tool with VAS 5051/1 adapter cable or VAG 1551 scan tool with 1551/3A adapter cable and VAG 1598/31 test box.
DIAGNOSTIC TROUBLE CODE DEFINITIONS (2.8L WITH ENGINE CODE ATQ)

Generic Scan Tool Code VAG Code Malfunction/Affected Sensor Or Circuit
P0101  16485 Mass Airflow Sensor Implausible Signal
P0102  16486 Mass Airflow Sensor Signal Too Small
P0103  16487 Mass Airflow Sensor Signal Too Large
P0112  16496 Intake Air Temperature Sensor Signal Too Small
P0113  16497 Intake Air Temperature Sensor Signal Too Large
P0116  16500 Engine Coolant Temperature Sensor Implausible Signal
P0117  16501 Engine Coolant Temperature Sensor Signal Too Small
P0118  16502 Engine Coolant Temperature Sensor Signal Too Large
P0130  16514 Heated Oxygen Sensor Bank 1 Sensor 1 Before Catalytic Converter Electrical Malfunction
P0131  16515 Heated Oxygen Sensor Bank 1 Sensor 1 Before Catalytic Converter Voltage Too Low
P0132  16516 Heated Oxygen Sensor Bank 1 Sensor 1 Before Catalytic Converter Voltage Too High
P0133  16517 Heated Oxygen Sensor Bank 1 Sensor 1 Before Catalytic Converter Signal Too Slow
P0134  16518 Heated Oxygen Sensor Bank 1 Sensor 1 Before Catalytic Converter No Activity
P0136  16520 Oxygen Sensor Bank 1 Sensor 2 After Catalytic Converter Electrical Malfunction
P0137  16521 Oxygen Sensor Bank 1 Sensor 2 After Catalytic Converter Voltage Too Low
P0138  16522 Oxygen Sensor Bank 1 Sensor 2 After Catalytic Converter Voltage Too High
P0139  16523 Oxygen Sensor Bank 1 Sensor 2 After Catalytic Converter Signal Too Slow
P0140  16620 Oxygen Sensor Bank 1 Sensor 2 After Catalytic Converter No Activity
P0150  16534 Heated Oxygen Sensor Bank 2 Sensor 1 Before Catalytic Converter Electrical Malfunction
P0151  16535 Heated Oxygen Sensor Bank 2 Sensor 1 Before Catalytic Converter Voltage Too Low
P0152  16536 Heated Oxygen Sensor Bank 2 Sensor 1 Before Catalytic Converter Voltage Too High
P0153  16537 Heated Oxygen Sensor Bank 2 Sensor 1 Before Catalytic Converter Signal To Slow
P0154  16538 Heated Oxygen Sensor Bank 2 Sensor 1 Before Catalytic Converter No Activity
P0156  16540 Oxygen Sensor Bank 2 Sensor 2 After Catalytic Converter Electrical Malfunction
P0157  16541 Oxygen Sensor Bank 2 Sensor 2 After Catalytic Converter Voltage Too Low
P0158  16542 Oxygen Sensor Bank 2 Sensor 2 After Catalytic Converter Voltage Too High
P0159  16543 Oxygen Sensor Bank 2 Sensor 2 After Catalytic Converter Signal To Slow
P0160  16544 Oxygen Sensor Bank 2 Sensor 2 After Catalytic Converter No Activity
P0219  16603 Maximum Engine Speed Exceeded
P0300  16684 Cylinder Misfire Detected
P0301  16685 Cylinder No. 1 Cylinder Misfire Detected
P0302  16686 Cylinder No. 2 Cylinder Misfire Detected
P0303  16687 Cylinder No. 3 Cylinder Misfire Detected
P0304  16688 Cylinder No. 4 Cylinder Misfire Detected
P0305  16689 Cylinder No. 5 Cylinder Misfire Detected
P0306  16690 Cylinder No. 6 Cylinder Misfire Detected
P0321  16705 Engine Speed Sensor Implausible Signal
P0322  16706 Engine Speed Sensor No Signal
P0327  16711 Knock Sensor No. 1 Signal Too Small
P0328  16712 Knock Sensor No. 1 Signal Too Large
P0332  16716 Knock Sensor Signal No. 2 Too Small
P0333  16717 Knock Sensor Signal No. 2 Too Large
P0341  16725 Camshaft Position Sensor Implausible Signal
P0346  16730 Camshaft Position Sensor Signal Too Small
P0420  16804 Catalytic Converter System Bank 1 Not Effective Enough
P0421  16806 Primary Catalytic Converter System Bank 1 Not Effective Enough
P0430  16814 Catalytic Converter System Bank 2 Not Effective Enough
P0431  16815 Primary Catalytic Converter System Bank 2 Not Effective Enough
P0441  16825 Tank Ventilation System Throughput Faulty
P0442  16826 Tank Ventilation System Failure Small Leak Detected
P0455  16839 Tank Ventilation System Failure Large Leak Detected
P0456  16840 Tank Ventilation System Pinhole Leak Detected
P0501  16885 Vehicle Speed Sensor Implausible Signal
P0506  16890 Idle Control System Below Specified Limit
P0507  16891 Idle Control System Above Specified Limit
P0560  16944 Voltage Supply Implausible Signal
P0562  16946 Voltage Supply Voltage Too Low
P0563  16947 Voltage Supply Voltage Too High
P0571  16955 Brake Light Switch Circuit Failure
P0601, P0604 Or P0605  16985, 16988 Or 16989 Engine Control Module Failure
P1102  17510 Heated Oxygen Sensor Bank 1, Sensor 1 Heating Circuit Short To Voltage
P1105  17513 Heated Oxygen Sensor Bank 1, Sensor 2 Heating Circuit Short To Voltage
P1107  17515 Heated Oxygen Sensor Bank 2, Sensor 1 Heating Circuit Short To Voltage
P1110  17518 Heated Oxygen Sensor Bank 2, Sensor 2 Heating Circuit Short To Voltage
P1111  175119 Oxygen Sensor Control Bank 1 System To Lean
P1112  17520 Oxygen Sensor Control Bank 1 System To Rich
P1113  17521 Oxygen Sensor Bank 1, Sensor 1 Internal Resistance High
P1114  17522 Oxygen Sensor Bank 2, Sensor 1 Internal Resistance High
P1115  17523 Oxygen Sensor Bank 1, Sensor 1 Heating Circuit Short To Ground
P1116  17524 Oxygen Sensor Bank 1, Sensor 1 Heating Circuit Open
P1117  17525 Oxygen Sensor Bank 1, Sensor 2 Heating Circuit Short To Ground
P1118  17526 Oxygen Sensor Bank 1, Sensor 2 Heating Open Circuit
P1119  17527 Oxygen Sensor Bank 2, Sensor 1 Heating Circuit Short To Ground
P1120  17528 Oxygen Sensor Bank 2, Sensor 1 Heating Circuit Open
P1121  17529 Oxygen Sensor Bank 2, Sensor 2 Heating Circuit Short To Ground
P1122  17530 Oxygen Sensor Bank 2, Sensor 2 Heating Open Circuit
P1127  17535 Oxygen Sensor Bank 1, Mixture Adaptation (Multiplicative System) Too Rich
P1128  17536 Oxygen Sensor Bank 1, Mixture Adaptation (Multiplicative System) Too Lean
P1129  17537 Oxygen Sensor Bank 2, Mixture Adaptation (Multiplicative System) Too Rich
P1130  17538 Oxygen Sensor Bank 2, Mixture Adaptation (Multiplicative System) Too Lean
P1131  17539 Oxygen Sensor Bank 2, Sensor 1 Internal Resistance High
P1136  17544 Oxygen Sensor Bank 1, Mixture Adaptation (Additive System) Too Lean
P1137  17545 Oxygen Sensor Bank 1, Mixture Adaptation Mixture Adaptation (Additive System) Too Rich
P1138  17546 Oxygen Sensor Bank 2, Mixture Adaptation (Additive System) Too Lean
P1139  17547 Oxygen Sensor Bank 2, Mixture Adaptation (Additive) System Too Lean
P1140  17548 Oxygen Sensor Bank 2, Sensor 2 Internal Resistance High
P1141  17549 Load Detection Implausible Value
P1142  17550 Load Detection Limit Not Reached
P1143  17551 Load Detection Limit Exceeded
P1147  17555 Oxygen Sensor Control Bank 2 System Too Lean
P1148  17556 Oxygen Sensor Control Bank 2 System Too Rich
P1149  17557 Oxygen Sensor Control Bank 1 Unplausible Control Value
P1150  17558 Oxygen Sensor Control Bank 2 Unplausible Control
P1171  17579 Angle Sensor No. 2 For Throttle Drive Implausible Signal
P1172  17580 Angle Sensor No. 2 For Throttle Drive Signal To Small
P1173  17581 Angle Sensor No. 2 For Throttle Drive Signal Too Large
P1176  17584 Oxygen Sensor Bank 1, Sensor 2 Behind Catalytic Converter Correction Control Limit Reached
P1177  17585 Oxygen Sensor Bank 2, Sensor 2 Behind Catalytic Converter Correction Control Limit Reached
P1213  17621 Cylinder No. 1 Fuel Injector Circuit Short To Voltage
P1214  17622 Cylinder No. 2 Fuel Injector Circuit Short To Voltage
P1215  17623 Cylinder No. 3 Fuel Injector Circuit Short To Voltage
P1216  17624 Cylinder No. 4 Fuel Injector Circuit Short To Voltage
P1217  17625 Cylinder No. 5 Fuel Injector Circuit Short To Voltage
P1218  17626 Cylinder No. 6 Fuel Injector Circuit Short To Voltage
P1225  17633 Cylinder No. 1 Fuel Injector Circuit Short To Ground
P1226  17634 Cylinder No. 2 Fuel Injector Circuit Short To Ground
P1227  17635 Cylinder No. 3 Fuel Injector Circuit Short To Ground
P1228  17636 Cylinder No. 4 Fuel Injector Circuit Short To Ground
P1229  17637 Cylinder No. 5 Fuel Injector Circuit Short To Ground
P1230  17638 Cylinder No. 6 Fuel Injector Circuit Short To Ground
P1237  17645 Cylinder No. 1 Fuel Injector Open Circuit
P1238  17646 Cylinder No. 2 Fuel Injector Open Circuit
P1239  17647 Cylinder No. 3 Fuel Injector Open Circuit
P1240  17648 Cylinder No. 4 Fuel Injector Open Circuit
P1241  17649 Cylinder No. 5 Fuel Injector Open Circuit
P1242  17650 Cylinder No. 6 Fuel Injector Open Circuit
P1250  17658 Fuel Level Too Low
P1296  17704 Engine Coolant Temperature Sensor Circuit Malfunction
P1325  17733 Knock Control Cylinder No. 1 - Control Limit Reached
P1326  17734 Knock Control Cylinder No. 2 - Control Limit Reached
P1327  17735 Knock Control Cylinder No. 3 - Control Limit Reached
P1328  17736 Knock Control Cylinder No. 4 - Control Limit Reached
P1329  17737 Knock Control Cylinder No. 5 - Control Limit Reached
P1330  17738 Knock Control Cylinder No. 6 - Control Limit Reached
P1335  17743 Engine Torque Monitoring 2 - Control Limit Exceeded
P1336  17744 Engine Torque Monitoring - Control Limit Exceeded
P1337  17745 Camshaft Position Sensor Bank 1 Short To Ground
P1338  17746 Camshaft Position Sensor Bank 1 Short To Voltage
P1340  17748 Camshaft Position Sensor Bank 1 Incorrect Alignment
P1347  17755 Camshaft Position Sensor Incorrect Bank 2 Alignment
P1386, P1387 Or P1388  17794, 17795 Or 17796 Engine Control Module Faulty
P1391  17799 Camshaft Position Sensor Bank 2 Short To Ground
P1392  17800 Camshaft Position Sensor Bank 2 Open Circuit/Short To Voltage
P1393  17801 Ignition Output 1 Electrical Malfunction In Circuit
P1394  17802 Ignition Output 2 Electrical Malfunction In Circuit
P1395  17803 Ignition Output 3 Electrical Malfunction In Circuit
P1410  17818 Evaporative Canister Purge Regulator Valve Short To Voltage
P1411  17819 Secondary Air Injection Solenoid Valve Bank 2 Throughput Too Low
P1414  17822 Secondary Air Injection Solenoid Valve Bank 2 Leak Detected
P1421  17829 Secondary Air Injection Solenoid Valve Short To Ground
P1422  17830 Secondary Air Injection Solenoid Valve Short To Voltage
P1423  17831 Secondary Air Injection System Bank 1 Throughput Too Low
P1424  17832 Secondary Air Injection System Bank 1 Leak Detected
P1425  17833 Evaporative Canister Purge Regulator Valve Short To Ground
P1426  17834 Evaporative Canister Purge Regulator Valve Open Circuit
P1432  17840 Secondary Air Injection Solenoid Valve Open Circuit
P1433  17841 Secondary Air Injection Pump Relay Open Circuit
P1434  17842 Secondary Air Injection Pump Relay Short To Voltage
P1435  17843 Secondary Air Injection Pump Relay Short To Ground
P1471  17879 Leak Detection Pump Tank Ventilation System Short To Voltage
P1472  17880 Leak Detection Pump Tank Ventilation System Short To Ground
P1473  17881 Leak Detection Pump Tank Ventilation System Open Circuit
P1475  17883 Leak Detection Pump Tank Ventilation System Malfunction No Signal
P1476  17884 Leak Detection Pump Tank Ventilation System Malfunction Pressure Too Low
P1501  17909 Fuel Pump Relay Short To Ground
P1502  17910 Fuel Pump Relay Short To Voltage
P1512  17920 Intake Manifold Change-Over Valve Short To Voltage
P1515  17923 Intake Manifold Change-Over Valve Short To Ground
P1516  17924 Intake Manifold Change-Over Valve Open Circuit
P1519  17927 Bank 1 Camshaft Adjustment Malfunction
P1522  17930 Bank 2 Camshaft Adjustment Malfunction
P1523  17931 Crash Signal From Airbag Control Module Implausible Signal
P1529  17937 Camshaft Adjustment Short To Voltage
P1530  17938 Camshaft Adjustment Short To Ground
P1531  17939 Camshaft Adjustment Open Circuit
P1539  17947 Clutch Vacuum Vent Valve Switch Implausible Signal
P1541  17908 Fuel Pump Relay Open Circuit
P1542  17950 Throttle Actuation Potentiometer Implausible Signal
P1543  17951 Throttle Actuation Potentiometer Signal Too Small
P1544  17952 Throttle Actuation Potentiometer Signal Too Large
P1545  17953 Throttle Valve Control Malfunction
P1558  17966 Throttle Drive Electrical Malfunction (Power Accelerator Actuation)
P1559  17967 Throttle Valve Control Module Malfunction In Basic Setting
P1564  17972 Throttle Valve Control Module Low Voltage During Basic Setting
P1565  17973 Throttle Valve Control Module Lower Impact Still Not Reached
P1568  17976 Throttle Valve Control Module Mechanical Malfunction
P1569  17977 Cruise Control Switch Implausible Signal
P1570  17978 Engine Control Module Locked
P1579  17987 Throttle Valve Control Module Adaptation Not Started
P1602  18010 Engine Control Module Terminal No. 30 Voltage Too Low
P1603 Or P1604  18011 Or 18012 Engine Control Module Faulty
P1606  18014 Rough Terrain Info/Engine Torque From Anti-Lock Brake System Control Module - Electrical Malfunction In Circuit
P1609  18017 Crash Shut-Off Was Triggered
P1612  18020 Engine Control Module Incorrectly Coded
P1624  18032 Request For Warning Light On Active (Malfunction Indicator Light)
P1626  18034 Powertrain Databus Missing Message From Transmission Control Module
P1630  18038 Throttle Position Sensor Signal Too Small
P1631  18039 Throttle Position Sensor Signal Too Large
P1633  18041 Accelerator Pedal Position Sender No. 2 Signal To Small
P1634  18042 Accelerator Pedal Position Sender No. 2 Signal To Large
P1639  18047 Throttle Position Sensor & Accelerator Pedal Position Sender No. 2 Implausible Signal
P1640  18048 Engine Control Module Faulty
P1648  18056 Powertrain Databus Faulty
P1649  18057 Powertrain Databus Missing Message From Anti-Lock Brake System Control Module
P1650  18058 Powertrain Databus Missing Message From Instrument Cluster
P1682 Or P1853  18090 Or 18261 Powertrain Databus Implausible Message From Anti-Lock Brake System Control Module
P3262  16646 Oxygen Sensors After Catalytic Converter Harness Connectors Mixed Up