Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Audi CabrioletFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code (DTC) Identification: Notes
NOTE:
Vehicle manufacturer does not support diagnostic information using aftermarket scan tools. Limited diagnostic information is available.
DTC IDENTIFICATION
| Generic Scan Tool Code | VAG 1551 Code | Malfunction/Affected Sensor Or Circuit | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1)P0102 | (1) 16486 | MAF Circuit Low Input | ||||||||||
| (1)P0103 | (1) 16487 | MAF Circuit High Input | ||||||||||
| (1)P0116 | (1) 16500 | ECT Circuit Range/Performance Problem | ||||||||||
| (1)P0117 | (1) 16501 | ECT Circuit Low Input | ||||||||||
| (1)P0118 | (1) 16502 | ECT Circuit High Input | ||||||||||
| (1)P0120 | (1) 16504 | TP Sensor Circuit Malfunction | ||||||||||
| (1)P0121 | (1) 16505 | TP Sensor Circuit Range/Performance Problem | ||||||||||
| (1)P0122 | (1) 16506 | TP Sensor Circuit Low Input | ||||||||||
| (1)P0123 | (1) 16507 | TP Sensor Circuit High Input | ||||||||||
| (1)P0130 | (1) 16514 | HO2S Circuit Malfunction (Bank 1, Sensor 1) | ||||||||||
| (1)P0132 | (1) 16516 | HO2S Circuit High Voltage (Bank 1, Sensor 1) | ||||||||||
| (1)P0133 | (1) 16517 | HO2S Circuit Slow Response (Bank 1, Sensor 1) | ||||||||||
| (1)P0134 | (1) 16518 | HO2S Circuit No Activity Detected (Bank 1, Sensor 1) | ||||||||||
| (1)P0135 | (1) 16519 | HO2S Heater Circuit Malfunction (Bank 1, Sensor 1) | ||||||||||
| (1)P0136 | (1) 16520 | HO2S Circuit Malfunction (Bank 1, Sensor 1) | ||||||||||
| (1)P0138 | (1) 16522 | HO2S Circuit High Voltage (Bank 1, Sensor 2) | ||||||||||
| (1)P0141 | (1) 16525 | HO2S Heater Circuit Malfunction (Bank 1, Sensor 2) | ||||||||||
| (1)P0150 | (1) 16534 | HO2S Circuit Malfunction (Bank 2, Sensor 1) | ||||||||||
| (1)P0152 | (1) 16536 | HO2S Circuit High Voltage (Bank 2, Sensor 1) | ||||||||||
| (1)P0153 | (1) 16537 | HO2S Circuit Slow Response (Bank 2, Sensor 1) | ||||||||||
| (1)P0154 | (1) 16538 | HO2S Circuit No Activity Detected (Bank 2, Sensor 1) | ||||||||||
| (1)P0155 | (1) 16539 | HO2S Heater Circuit Malfunction (Bank 2, Sensor 1) | ||||||||||
| (1)P0156 | (1) 16540 | HO2S Circuit Malfunction (Bank 2, Sensor 2) | ||||||||||
| (1)P0158 | (1) 16542 | HO2S Circuit High Voltage (Bank 2, Sensor 2) | ||||||||||
| (1)P0161 | (1) 16545 | HO2S Heater Circuit Malfunction (Bank 2, Sensor 2) | ||||||||||
| (2)P0170 | (2) 16554 | Fuel Trim Malfunction (Bank 1) | ||||||||||
| (2)P0171 | (2) 16555 | System Too Lean (Bank 1) | ||||||||||
| (2)P0172 | (2) 16556 | System Too Rich (Bank 1) | ||||||||||
| (2)P0173 | (2) 16557 | Fuel Trim Malfunction (Bank 2) | ||||||||||
| (2)P0174 | (2) 16558 | System Too Lean (Bank 2) | ||||||||||
| (2)P0175 | (2) 16559 | System Too Rich (Bank 2) | ||||||||||
| (3)P0300 | (3) 16684 | Random Misfire Detected | ||||||||||
| (3)P0301 | (3) 16685 | Cylinder No. 1 Misfire Detected | ||||||||||
| (3)P0302 | (3) 16686 | Cylinder No. 2 Misfire Detected | ||||||||||
| (3)P0303 | (3) 16687 | Cylinder No. 3 Misfire Detected | ||||||||||
| (3)P0304 | (3) 16688 | Cylinder No. 4 Misfire Detected | ||||||||||
| (3)P0305 | (3) 16689 | Cylinder No. 5 Misfire Detected | ||||||||||
| (3)P0306 | (3) 16690 | Cylinder No. 6 Misfire Detected | ||||||||||
| (1)P0322 | (1) 16706 | Ignition Engine Speed Input Circuit No Signal | ||||||||||
| (1)P0327 | (1) 16711 | Knock Sensor No. 1 Circuit Low Input (Bank 1) | ||||||||||
| (1)P0332 | (1) 16176 | Knock Sensor No. 2 Circuit Low Input (Bank 2) | ||||||||||
| (1)P0337 | (1) 16721 | Crankshaft Position Sensor Circuit Low Input | ||||||||||
| (2)P0401 | (2) 16785 | EGR Flow Insufficient Detected | ||||||||||
| (2)P0402 | (2) 16786 | EGR Flow Excessive Detected | ||||||||||
| (2)P0422 | (2) 16806 | Main Catalyst Efficiency Below Threshold (Bank 1) | ||||||||||
| (2)P0432 | (2) 16816 | Main Catalyst Efficiency Below Threshold (Bank 2) | ||||||||||
| (2)P0441 | (2) 16825 | EVAP Emission Control System Incorrect Purge Flow | ||||||||||
| (2)P0442 | (2) 16826 | EVAP Emission Control System Leak Detected (Small Leak) | ||||||||||
| (2)P0455 | (2) 16839 | EVAP Emission Control System Leak Detected (Gross Leak) | ||||||||||
| (1)P0461 | (1) 16845 | Fuel Level Sensor Circuit Range/Performance | ||||||||||
| (1)P0501 | (1) 16885 | Vehicle Speed Sensor Range/Performance | ||||||||||
| (5) P0603 | (5) 65535 | PCM Keep Alive Memory (KAM) Error | ||||||||||
| (1)P0605 | (1) 16989 | PCM Read Only Memory (ROM) Error | ||||||||||
| (5) P0705 | (5) 00293 | Transmission Range Sensor Circuit Malfunction | ||||||||||
| (4)(5)P0706 | (4)(5) 17090 | Transmission Range Sensor Circuit Range/Performance | ||||||||||
| (4)(5)P0707 | (4)(5) 17091 | Transmission Range Sensor Circuit Low Input | ||||||||||
| (5) P0715 | (5) 00297 | Input/Turbine Speed Sensor Circuit Malfunction | ||||||||||
| (5) P0721 | (5) 00297 | Output Speed Sensor Circuit Range/Performance | ||||||||||
| (5) P0722 | (5) 00297 | Output Speed Sensor Circuit No Signal | ||||||||||
| (5) P0725 | (5) 00529 | Engine Speed Input Circuit Malfunction | ||||||||||
| (5) P0726 | (5) 00543 | Engine Speed Input Circuit Range/Performance | ||||||||||
| (5) P0727 | (5) 00529 | Engine Speed Input Circuit No Signal | ||||||||||
| (5) P0730 | (5) 00652 | Incorrect Gear Ratio | ||||||||||
| (5) P0731 | (5) 00652 | Gear 1 Incorrect Ratio | ||||||||||
| (5) P0732 | (5) 00652 | Gear 2 Incorrect Ratio | ||||||||||
| (5) P0733 | (5) 00652 | Gear 3 Incorrect Ratio | ||||||||||
| (5) P0734 | (5) 00652 | Gear 4 Incorrect Ratio | ||||||||||
| (5) P0748 | (5) 00268 | Pressure Control Solenoid Electrical | ||||||||||
| (5) P0753 | (5) 00258 | Shift Solenoid A Electrical | ||||||||||
| (5) P0758 | (5) 0260 | Shift Solenoid B Electrical | ||||||||||
| (5) P0763 | (5) 00262 | Shift Solenoid C Electrical | ||||||||||
| (5) P0768 | (5) 00264 | Shift Solenoid D Electrical | ||||||||||
| (5) P0773 | (5) 00266 | Shift Solenoid E Electrical | ||||||||||
| (1)P1101 | (1) 17509 | HO2S Voltage Too Low/Air Leak (Bank 1, Sensor 1) | ||||||||||
| (1)P1102 | (1) 17510 | HO2S Heater Circuit Short to B+ (Bank 1, Sensor 1) | ||||||||||
| P1104 | (1) 17512 | HO2S Voltage Too Low/Air Leak (Bank 1, Sensor 2) | ||||||||||
| (1)P1105 | (1) 17513 | HO2S Heater Circuit Short To B+ (Bank 1, Sensor 2) | ||||||||||
| (1)P1106 | (1) 17514 | HO2S Voltage Too Low/Air Leak (Bank 2, Sensor 1) | ||||||||||
| (1)P1107 | (1) 17515 | HO2S Heater Circuit Short To B+ (Bank 2, Sensor 1) | ||||||||||
| (1)P1109 | (1) 17517 | HO2S Voltage Too Low/Air Leak (Bank 2, Sensor 2) | ||||||||||
| (1)P1110 | (1) 17518 | HO2S Heater Circuit Short To B+ (Bank 2, Sensor 2) | ||||||||||
| (1)P1201 | (1) 17609 | Cylinder No. 1 Fuel Injector Circuit Electrical Malfunction | ||||||||||
| (1)P1202 | (1) 17610 | Cylinder No. 2 Fuel Injector Circuit Electrical Malfunction | ||||||||||
| (1)P1203 | (1) 17611 | Cylinder No. 3 Fuel Injector Circuit Electrical Malfunction | ||||||||||
| (1)P1204 | (1) 17612 | Cylinder No. 4 Fuel Injector Circuit Electrical Malfunction | ||||||||||
| (1)P1205 | (1) 17613 | Cylinder No. 5 Fuel Injector Circuit Electrical Malfunction | ||||||||||
| (1)P1206 | (1) 17614 | Cylinder No. 6 Fuel Injector Circuit Electrical Malfunction | ||||||||||
| (1)P1213 | (1) 17621 | Cylinder No. 1 Fuel Injector Circuit Short To B+ | ||||||||||
| (1)P1214 | (1) 17622 | Cylinder No. 2 Fuel Injector Circuit Short To B+ | ||||||||||
| (1)P1215 | (1) 17623 | Cylinder No. 3 Fuel Injector Circuit Short To B+ | ||||||||||
| (1)P1216 | (1) 17624 | Cylinder No. 4 Fuel Injector Circuit Short To B+ | ||||||||||
| (1)P1217 | (1) 17625 | Cylinder No. 5 Fuel Injector Circuit Short To B+ | ||||||||||
| (1)P1218 | (1) 17626 | Cylinder No. 6 Fuel Injector Circuit Short To B+ | ||||||||||
| (4)P1250 | (4) 17658 | Fuel Level Too Low | ||||||||||
| (4)P1325 | (4) 17733 | Cylinder No. 1 Knock Control Limit Attained | ||||||||||
| (4)P1326 | (4) 17734 | Cylinder No. 2 Knock Control Limit Attained | ||||||||||
| (4)P1327 | (4) 17735 | Cylinder No. 3 Knock Control Limit Attained | ||||||||||
| (4)P1328 | (4) 17736 | Cylinder No. 4 Knock Control Limit Attained | ||||||||||
| (4)P1329 | (4) 17737 | Cylinder No. 5 Knock Control Limit Attained | ||||||||||
| (4)P1330 | (4) 17738 | Cylinder No. 6 Knock Control Limit Attained | ||||||||||
| (1)P1339 | (1) 17747 | Crankshaft Position Sensor/Engine Speed Sensor Cross Connected | ||||||||||
| (1)P1341 | (1) 17749 | Ignition Coil Power Output Stage 1 Short To Ground | ||||||||||
| (1)P1343 | (1) 17751 | Ignition Coil Power Output Stage 2 Short To Ground | ||||||||||
| (1)P1345 | (1) 17753 | Ignition Coil Power Output Stage 3 Short To Ground | ||||||||||
| (1)P1391 | (1) 17799 | Camshaft Position (CMP) Sensor Short To Ground | ||||||||||
| (1)P1392 | (1) 17800 | Camshaft Position (CMP) Sensor Open Circuit Or Short To B+ | ||||||||||
| (1)P1393 | (1) 17801 | Ignition Coil Power Output Stage 1 Electrical Malfunction | ||||||||||
| (1)P1394 | (1) 17802 | Ignition Coil Power Output Stage 2 Electrical Malfunction | ||||||||||
| (1)P1395 | (1) 17803 | Ignition Coil Power Output Stage 3 Electrical Malfunction | ||||||||||
| (1)P1396 | (1) 17804 | Engine Speed Sensor Missing Tooth | ||||||||||
| (1)P1400 | (1) 17808 | EGR Valve Circuit Electrical Malfunction | ||||||||||
| (1)P1402 | (1) 17810 | EGR Valve Circuit Short To B+ | ||||||||||
| (1)P1407 | (1) 17815 | EGR Temperature Sensor Signal Too Low | ||||||||||
| (1)P1408 | (1) 17816 | EGR Temperature Sensor Signal Too High | ||||||||||
| (1)P1409 | (1) 17817 | Fuel Tank Ventilation Valve Electrical Malfunction | ||||||||||
| (1)P1410 | (1) 17818 | Fuel Tank Ventilation Valve Short To B+ | ||||||||||
| (2)P1411 | (2) 17819 | Secondary Air Injection System (Bank 2) Restricted Flow | ||||||||||
| (2)P1414 | (2) 17822 | Secondary Air Injection System (Bank 2) Leak Detected | ||||||||||
| (1)P1420 | (1) 17828 | Secondary Air Injection Control Electrical Malfunction | ||||||||||
| (1)P1422 | (1) 17830 | Secondary Air Injection Solenoid Valve Circuit Short To B+ | ||||||||||
| (2)P1423 | (2) 17831 | Secondary Air Injection System (Bank 1) Flow Too Low | ||||||||||
| (1)P1424 | (1) 17832 | Secondary Air Injection System (Bank 1) Leak Detected | ||||||||||
| (1)P1434 | (1) 17842 | Secondary Air Injection System Pump Relay Circuit Short To B+ | ||||||||||
| (1)P1436 | (1) 17844 | Secondary Air Injection System Pump Relay Circuit Electrical Malfunction | ||||||||||
| (1)P1470 | (1) 17878 | Evap Emission Control System LDP Circuit Malfunction | ||||||||||
| (1)P1471 | (1) 17879 | Evap Emission Control System LDP Circuit Short To B+ | ||||||||||
| (1)P1475 | (1) 17883 | Evap Emission Control System LDP Malfunction/Signal Circuit Open | ||||||||||
| (1)P1476 | (1) 17884 | Evap Emission Control System LDP Malfunction/Insufficient Vacuum | ||||||||||
| (1)P1500 | (1) 17908 | Fuel Pump Relay Circuit Electrical Malfunction | ||||||||||
| (1)P1504 | (1) 17912 | Intake Air System Bypass Air Determined | ||||||||||
| (1)P1505 | (1) 17913 | CTP Switch Does Not Close (Open Circuit) | ||||||||||
| (1)P1506 | (1) 17914 | CTP Switch Does Not Open (Short To Ground) | ||||||||||
| (1)P1509 | (1) 17917 | IAC Circuit Electrical Malfunction | ||||||||||
| (1)P1510 | (1) 17918 | IAC Circuit Short To B+ | ||||||||||
| (4)P1511 | (4) 17919 | Intake Manifold Change-Over Valve Circuit Electrical Malfunction | ||||||||||
| (4)P1512 | (4) 17920 | Intake Manifold Change-Over Valve Circuit Short To B+ | ||||||||||
| (4)P1600 | (4) 18008 | Power Supply (B+) Terminal 15 Low Voltage | ||||||||||
| P1602 | 18010 | Power Supply (B+) Terminal 30 Low Voltage | ||||||||||
| (4)P1606 | (4) 18014 | Rough Road/Acceleration Sensor Electrical Malfunction | ||||||||||
| (1)P1611 | (1) 18019 | MIL Call-Up/TCM Short To Ground | ||||||||||
| (1)P1612 | (1) 18020 | PCM Incorrectly Coded | ||||||||||
| (1)P1613 | (1) 18021 | MIL Call-Up Circuit Open Or Short To B+ | ||||||||||
| (5) P1711 | (5) 00283 | Wheel Speed Signal No. 1 Range/Performance | ||||||||||
| (5) P1716 | (5) 00285 | Wheel Speed Signal No. 2 Range/Performance | ||||||||||
| (5) P1726 | (5) 00290 | Wheel Speed Signal No. 4 Range/Performance | ||||||||||
| (5) P1728 | (5) 00597 | Different Wheel Speed Signals Range/Performance | ||||||||||
| (5) P1746 | (5) 00532 | Transmission Control Module Relay Malfunction | ||||||||||
| (5) P1749 | (5) 01044 | Transmission Control Module Incorrect Coding | ||||||||||
| (5) P1766 | (5) 00638 | Throttle Angle Signal Stuck Off | ||||||||||
| (5) P1767 | (5) 00638 | Throttle Angle Signal Stuck On | ||||||||||
| (5) P1778 | (5) 00270 | Solenoid EV7 Electrical Malfunction | ||||||||||
| (5) P1780 | (5) 00545 | Engine Intervention Readable | ||||||||||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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