If no faults were found during preliminary inspection, proceed with self-diagnostics. If no trouble codes or only pass codes are present after entering self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).
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.
| Generic Scan Tool Code | VAG 1551 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. | ||
| (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. |
A4 1.8L TURBO DTC IDENTIFICATION
A4 2.8L DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| Generic Scan Tool Code | VAG 1551 Code | Malfunction/Affected Sensor Or Circuit |
|---|---|---|
| P0102 (1) | (1) 16486 | MAF Circuit Low Input |
| P0103 (1) | (1) 16487 | MAF Circuit High Input |
| P0112 (1) | (1) 16496 | Intake Air Temperature Circuit Low Input |
| P0113 (1) | (1) 16497 | Intake Air Temperature 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 (1) | (1) 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) |
| P0138 (1) | (1) 16522 | HO2S Circuit High Voltage (Bank 1, Sensor 2) |
| P0140 (1) | (1) 16524 | HO2S Circuit No Activity Detected (Bank 1, Sensor 2) |
| P0150 (1) | (1) 16534 | HO2S Circuit Malfunction (Bank 2, Sensor 1) |
| P0151 (1) | (1) 16535 | HO2S Circuit Low Voltage (Bank 2, Sensor 1) |
| P0152 (1) | (1) 16536 | HO2S Circuit High Voltage (Bank 2, Sensor 1) |
| P0153 (1) | (1) 16537 | HO2S Circuit Slow Response (Bank 2, Sensor 1) |
| P0154 (1) | (1) 16538 | HO2S Circuit No Activity Detected (Bank 2, Sensor 1) |
| P0156 (1) | (1) 16540 | HO2S Circuit Malfunction (Bank 2, Sensor 2) |
| P0157 (1) | (1) 16541 | HO2S Circuit Low Voltage (Bank 2, Sensor 2) |
| P0158 (1) | (1) 16542 | HO2S Circuit High Voltage (Bank 2, Sensor 2) |
| P0160 (1) | (1) 16544 | HO2S Circuit No Activity Detected (Bank 2, Sensor 2) |
| P0300 (2) | (2) 16684 | Random/Multiple 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 |
| P0305 (2) | (2) 16689 | Cylinder No. 5 Misfire Detected |
| P0306 (2) | (2) 16690 | Cylinder No. 6 Misfire Detected |
| P0321 (1) | (1) 16705 | Ignition Engine Speed Input Circuit Range/Performance |
| P0322 (3) | (3) 16706 | Ignition Engine Speed Input Circuit No Signal |
| P0327 (3) | (3) 16711 | Knock Sensor No. 1 Circuit Low Input |
| P0328 (3) | (3) 16712 | Knock Sensor No. 1 Circuit High Input |
| P0332 (3) | (3) 16716 | Knock Sensor No. 2 Circuit Low Input |
| P0333 (3) | (3) 16717 | Knock Sensor No. 2 Circuit High Input |
| P0411 (1) | (1) 16795 | Secondary Air Injection System Incorrect Flow Detected |
| P0422 (1) | (1) 16806 | Main Catalyst Efficiency Below Threshold (Bank 1) |
| P0432 (1) | (1) 16816 | Main Catalyst Efficiency Below Threshold (Bank 2) |
| P0441 (4) | (4) 16825 | EVAP Emission Control System Incorrect Purge Flow |
| P0442 (4) | (4) 16826 | EVAP Emission Control System Small Leak Detected |
| P0455 (4) | (4) 16839 | EVAP Emission Control 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 |
| P0601 (1) | (1) 16985 | Internal Controller Module Memory Check Sum Error |
| P0604 (1) | (1) 16988 | Internal Controller Module Memory RAM Error |
| 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) |
| P1107 (1) | (1) 17515 | HO2S Heater Circuit Short To B+ (Bank 2, Sensor 1) |
| P1110 (1) | (1) 17518 | HO2S Heater Circuit Short To B+ (Bank 2, 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) |
| P1129 (1) | (1) 17537 | Long Term Fuel Trim Multiplicative Too Rich (Bank 2) |
| P1130 (1) | (1) 17538 | Long Term Fuel Trim Multiplicative Too Lean (Bank 2) |
| 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) |
| P1138 (1) | (1) 17546 | Long Term Fuel Trim Additive Too Lean (Bank 2) |
| P1139 (1) | (1) 17547 | Long Term Fuel Trim Additive Too Rich (Bank 2) |
| P1141 (1) | (1) 17549 | Load Calculation Cross Check Range/Performance |
| P1176 (4) | (4) 17584 | O2 Correction Behind Catalyst B1 Limit Attained |
| P1177 (4) | (4) 17585 | O2 Correction Behind Catalyst B2 Limit Attained |
| P1196 (1) | (1) 17604 | O2 Sensor Heater Circuit Electrical Malfunction (Bank 1, Sensor 1) |
| P1197 (1) | (1) 17605 | O2 Sensor Heater Circuit Electrical Malfunction (Bank 2, Sensor 1) |
| P1198 (1) | (1) 17606 | O2 Sensor Heater Circuit Electrical Malfunction (Bank 1, Sensor 2) |
| P1199 (1) | (1) 17607 | O2 Sensor Heater Circuit Electrical Malfunction (Bank 2, 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+ |
| P1217 (3) | (3) 17625 | Cylinder No. 5 Fuel Injector Circuit Short To B+ |
| P1218 (3) | (3) 17626 | Cylinder No. 6 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 |
| P1229 (3) | (3) 17637 | Cylinder No. 5 Fuel Injector Circuit Short To Ground |
| P1230 (3) | (3) 17638 | Cylinder No. 6 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 |
| P1241 (3) | (3) 17649 | Cylinder No. 5 Fuel Injector Open Circuit |
| P1242 (3) | (3) 17650 | Cylinder No. 6 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 |
| P1329 (4) | (4) 17737 | Cylinder No. 5 Knock Control Limit Attained |
| P1330 (4) | (4) 17738 | Cylinder No. 6 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 (1) | (1) 17794 | Internal Control Module Knock Control Circuit Error |
| P1391 (1) | (1) 17799 | Camshaft Position (CMP) Sensor Short To Ground (Bank 2) |
| P1392 (1) | (1) 17800 | Camshaft Position (CMP) Sensor Open Circuit Or Short To B+ (Bank 2) |
| P1410 (1) | (1) 17818 | Fuel Tank Ventilation Valve Circuit Short To B+ |
| P1421 (3) | (3) 17829 | Secondary Air Injection Valve Circuit Short To Ground |
| P1422 (3) | (3) 17830 | Secondary Air Injection System Control Valve Circuit Short To B+ |
| P1425 (1) | (1) 17833 | Tank Vent Valve Short To Ground |
| P1426 (1) | (1) 17834 | Tank Vent Valve Open |
| P1432 (1) | (1) 17840 | Secondary Air Injection Valve Open |
| P1433 (1) | (1) 17841 | Secondary Air Injection System Pump Relay Circuit Open |
| P1434 (1) | (1) 17842 | Secondary Air Injection System Pump Relay Circuit Short To B+ |
| P1435 (1) | (1) 17843 | Secondary Air Injection System Pump Relay Circuit Short To Ground |
| P1436 (1) | (1) 17844 | Secondary Air Injection System Pump Relay Circuit Electrical Malfunction |
| P1471 (4) | (4) 17879 | EVAP Emission Control LDP Circuit Short To B+ |
| P1472 (4) | (4) 17880 | EVAP Emission Control LDP Circuit Short To Ground |
| P1473 (4) | (4) 17881 | EVAP Emission Control LDP Open Circuit |
| P1476 (4) | (4) 17884 | EVAP Emission Control LDP Circuit Malfunction/Insufficient Vacuum |
| P1477 (4) | (4) 17885 | EVAP Emission Control LDP Circuit 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) |
| P1512 (3) | (3) 17920 | Intake Manifold Change-Over Valve Circuit Short To B+ |
| P1515 (3) | (3) 17923 | Intake Manifold Change-Over Valve Circuit Short To Ground |
| P1516 (3) | (3) 17924 | Intake Manifold Change-Over Valve Circuit Open |
| P1519 (1) | (1) 17927 | Intake Camshaft Control Malfunction (Bank 1) |
| P1522 (1) | (1) 17930 | Intake Camshaft Control Malfunction (Bank 2) |
| P1543 (1) | (1) 17951 | Throttle Actuation Potentiometer Signal Too Low |
| P1544 (1) | (1) 17952 | Throttle Actuation Potentiometer Signal Too High |
| P1545 (1) | (1) 17953 | Throttle Position Control Malfunction |
| 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 |
| P1564 (4) | (4) 17972 | Idle Speed Control Throttle Position Low Voltage During Adaptation |
| P1565 (1) | (1) 17973 | Idle Speed Control Throttle Position Lower Impact Not Attained |
| P1600 (3) | (3) 18008 | Power Supply (B+) Terminal 15 Low Voltage |
| P1602 (4) | (4) 18010 | Power Supply (B+) Terminal 30 Low Voltage |
| P1606 (4) | (4) 18014 | Rough Road/Acceleration Specification Engine Torque ABS-PCM Electrical Malfunction |
| P1612 (3) | (3) 18020 | PCM Incorrectly Coded (Vehicle With A/T Is Coded For M/T) |
| P1612 (4) | (4) 18020 | PCM Incorrectly Coded (Vehicle With ASR Is Not Coded For ASR) |
| P1624 (3) | (3) 18032 | MIL Request Signal Active |
| P1626 (1) | (1) 18034 | CAN Bus Missing Message From Transmission Controller |
| P1640 (1) | (1) 18048 | Internal Controller Module (EEPROM) Error |
| P1681 (3) | (3) 18089 | Controller Unit Programming Not Finished |
| P1690 (4) | (4) 18098 | MIL Malfunction |
| (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. | ||
| (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. |
A4 2.8L DTC IDENTIFICATION
CONNECTOR IDENTIFICATION
| Connector | See Fig. | |
|---|---|---|
| Camshaft Position Sensor Connector Terminals | 3 | |
| ECT Sensor Connector Terminals | 4 | |
| ECT Sensor Terminals | 5 | |
| EGR Temperature Sensor Connector Terminals | 6 | |
| EGR Vacuum Regulator Solenoid Valve Connector (Harness-Side) Terminals | 6 | |
| Engine Speed Sensor Connector (Harness-Side) Terminals | 3 | |
| Engine Speed Sensor Connector (Sensor-Side) Terminals | 7 | |
| EVAP Canister Purge Valve Harness Connector Terminals | 6 | |
| EVAP Differential Pressure Sensor Connector (Harness-Side) Terminals | 3 | |
| EVAP Leak Detection Pump (Component-Side) | 8 | |
| EVAP Leak Detection Pump (Harness-Side) | 9 | |
| Fuel Injector Harness Connector | 6 | |
| HO2S Black 2-Pin Heater Connector | 6 | |
| HO2S Connector (Harness-Side) Terminals | 10 | |
| HO2S Connector (Sensor-Side) Terminals | 11 | |
| IAC Valve Connector Terminals | 12 | |
| Ignition Coil Power Output Stage 3-Pin Connector (Harness-Side) Terminals | 3 | |
| Ignition Coil Power Output Stage 4-Pin Connector (Harness-Side) Terminals | 13 | |
| Intake Manifold Change-Over Valve Connector Terminals | 6 | |
| Knock Sensor Connector (Harness-Side) Terminals | 3 | |
| Knock Sensor Connector (Sensor-Side) Terminals | 7 | |
| MAF Sensor Connector Terminals | ||
| A4 (1.8L Turbo) | 14 | |
| A4 (2.8L) | 3 | |
| Secondary Air Injection Solenoid Valve Harness Connector | 6 | |
| TP Sensor Connector Terminals | 15 | |
| TP Sensor Terminals | 16 | |
| Throttle Valve Control Module (TVCM) Connector Terminals | 17 | |
CONNECTOR IDENTIFICATION DIRECTORY
