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Mercedes Factory DTC faulty codes
| P1000 | Transmission shift lever control module | defective |
| P1031 | Heated oxygen sensor (HO2S) 1 | malfunction |
| P1131 | Heated oxygen sensor (HO2S) 1 | signal/electrical fault |
| P1132 | Heated oxygen sensor (HO2S) control 1 | system too rich |
| P1137 | Heated oxygen sensor (HO2S) 2 | signal/electrical fault |
| P1138 | Heated oxygen sensor (HO2S) 2 | range/performance problem |
| P1146 | Mass air flow (MAF) sensor(s) | malfunction |
| P1147 | Engine coolant temperature (ECT) sensor(s) | malfunction |
| P1148 | Intake air temperature (IAT) sensor(s) | malfunction |
| P1149 | Manifold absolute pressure (MAP) sensor(s) | malfunction |
| P1162 | Throttle position (TP) sensor(s) | malfunction |
| P1163 | Engine oil level switch | malfunction |
| P1170 | Short term fuel trim (ET) | malfunction |
| P1177 | Engine oil sensor, quality/level/temperature | malfunction |
| P1178 | Engine oil sensor, level | implausible signal |
| P1179 | Engine oil sensor, quality | implausible signal |
| P1180 | Engine oil sensor, temperature | too high |
| P1181 | Engine coolant blower motor/AC condenser blower motor | malfunction |
| P1182 | Starter motor relay | defective |
| P1183 | Cylinder cut-out solenoid, bank 1 | defective |
| P1184 | Cylinder cut-out solenoid, bank 2 | defective |
| P1185 | Engine oil sensor, quality | water in oil |
| P1186 | Fuel shut-off | recognised |
| P1225 | Intake manifold air control solenoid | malfunction |
| P1233 | Throttle actuator | mechanical fault |
| P1235 | Supercharger (SC) pressure | incorrect |
| P1236 | Supercharger (SC) clutch | malfunction |
| P1300 | Crankshaft position (CKP) sensor(s) | malfunction |
| P1335 | Engine speed (RPM) sensor | signal |
| P1336 | Crankshaft position (CKP) sensor | signal |
| P1337 | Engine control module (ECM), RPM signal | output |
| P1340 | Camshaft position (CMP) sensor | signal |
| P1341 | Camshaft position (CMI) actuator | mechanical fault |
| P1342 | Camshaft position (CMI) actuator | electrical fault |
| P1355 | Cylinder cut-out solenoid, bank 1 | solenoid stuck open |
| P1356 | Cylinder cut-out solenoid, bank 2 | solenoid stuck open |
| P1357 | Cylinder cut-out system ON, cylinder 2,3,5 or 8 | inlet valve still opening |
| P1358 | Cylinder cut-out system OFF, cylinder 5 | exhaust valve not opening |
| P1359 | Cylinder cut-out system OFF, cylinder 2 | exhaust valve not opening |
| P1360 | Cylinder cut-out system OFF, cylinder 3 | exhaust valve not opening |
| P1361 | Cylinder cut-out system OFF, cylinder 8 | exhaust valve not opening |
| P1366 | Cylinder cut-out system, throttle switch-overvalve | malfunction |
| P1380 | Cylinder cut-out system OFF | one inlet valveof a cylinder is not opening |
| P1384 | Knock sensor (KS) 1, bank 2 | malfunction |
| P1385 | Knock sensor (KS) 2, bank 2 | malfunction |
| P1386 | Engine control module (ECM), knock control | defective |
| P1397 | Camshaft position (CMP) sensor(s) | malfunction |
| P1400 | Exhaust gas recirculation (EGR) solenoid | circuit malfunction |
| P1411 | Secondary air injection (AIR) system | malfunction |
| P1420 | Secondary air injection (AIR) valve/solenoid | defective |
| P1437 | Catalytic converter temperature sensor,bank 1 | defective |
| P1443 | Evaporative emission (EVAP) canister purge valve(s) | defective |
| P1444 | Catalytic converter temperature sensor,bank 2 | defective |
| P1453 | Secondary air injection (AIR) pump relay | defective |
| P1463 | Secondary air injection (AIR) system | defective |
| P1490 | Evaporative emission (EVAP) canister purgevalve(s) | defective |
| P1491 | AC system | pressure too high |
| P1519 | Camshaft position (CMP) control, bank 1 | mechanical fault |
| P1522 | Camshaft position (CMP) control, bank 2 | mechanical fault |
| P1525 | Camshaft position (CMP) actuator, bank I | defective |
| P1533 | Camshaft position (CMP) actuator, bank 2 | defective |
| P1542 | Accelerator pedal position (APP) sensor | signal |
| P1551 | AC compressor clutch cut-off | |
| P1570 | Ignition switch control module/ECM | attempted theft/data bus/not compatible |
| P1580 | Throttle motor, bank 1, TPMIISC | circuit malfunction |
| P1581 | Throttle motor, bank 2, TPM/ISC | circuit malfunction |
| P1584 | Brake pedal position (BPP) switch | malfunction |
| P1587 | Engine control module (ECM), bank 1 and 2 | supply voltage |
| P1588 | CAN data bus, central locking control module | malfunction |
| P1589 | Engine control module (ECM), bank 2,knock control | defective |
| P1603 | CAN data bus, ignition switch control module | malfunction |
| P1605 | Acceleration sensor, ESP/ASR system | roughroad signal, comparison of wheel speeds |
| P1632 | Engine control module (ECM). bank 2 | intemal fault |
| P1641 | Engine control module (ECM), bank 1 and 2 | TP signal |
| P1642 | Engine control module (ECM) | incorrectly coded |
| P1643 | Engine control module (ECM) | incorrectly coded/data bus |
| P1644 | Transmission control module (1CM) | supply voltage low |
| P1666 | Cylinder cut-out solenoid, bank 1 or 2 | does not open |
| P1681 | Engine control module (ECM), crash signal | plausibility |
| P1700 | Transmission shift control | malfunction |
| P1701 | Transmission shift control valve | electrical fault |
| P1711 | Intake manifold air control solenoid | malfunction |
| P1740 | Engine control module (ECM), load signal | plausibility |
| P1741 | Throttle position (TI) sensor, load signal | plausibility |
| P1747 | CAN data bus, TCM/instrument panel | malfunction |
| P1750 | Diagnostic module, pin 30 | supply voltage low |
| P1817 | Reverse lamps | supply voltage, open circuit |
| P1832 | Transmission shift lever control module | short circuit |
| P1833 | Transmission shift lever control module | open circuit |
| P1856 | Transmission shift lever recognition | malfunction |
| P1860 | CAN data bus, VSS signal, rear axle | malfunction |
| P1861 | CAN data bus, VSS signal, rear axle | malfunction |
| P1875 | CAN data bus, transmission shift lever controlmodule | malfunction |
| P1876 | CAN data bus, VSS signal | malfunction |
| P1904 | CAN data bus, TCM/instrument panel | malfunction |
| P1906 | CAN data bus, stop lamp switch | malfunction |
| P1910 | Transmission shift lever control module | supply voltage high |
| P1911 | Transmission shift lever illumination | opencircuit |
| P1912 | Transmission shift lever control module, rangeswitch | implausible signal |
| P1925 | Transmission shift lever control module,immobilizer signal | plausibility |