OBDII Mercedes-Benz Code Definitions.
Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here. Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles.
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| Mercedes-Benz Codes | ||
|---|---|---|
| Trouble Code | Fault Location | Probable Cause |
| P0325 | Knock sensor (KS) 1 , bank 1 -circuit malfunction | Wiring, poor connection, KS |
| P0651 | Accelerator Pedal Position Sensor Power Supply | Electrical, Throttle Pedal Position Sensor, PCM | P1000 – P1099 (Fuel and air metering and auxiliary emission control) |
| P1000 | Transmission shift lever control module- defective | Transmission shift lever control module |
| P1031 | Heated oxygen sensor (H02S) 1 – malfunction | Wiring, connector, H02S | P1100 – P1199 (Fuel and air metering) |
| P1131 | Heated oxygen sensor (H02S) 1 – signal/ electrical fault | Wiring, H02S |
| P1132 | Heated oxygen sensor (H02S) control 1 – system too rich | Intake/exhaust leak, H02S |
| P1137 | Heated oxygen sensor (H02S) 2 – signal/ electrical fault | Wiring, H02S |
| P1138 | Heated oxygen sensor (H02S) 2 – range/ performance problem | Wiring, H02S |
| P1146 | Mass air flow (MAF) sensor(s)- malfunction | Wiring, intake leak, MAF sensor(s) |
| P1147 | Engine coolant temperature (ECT) sensor(s)- malfunction | Wiring, ECT sensor(s) |
| P1148 | Intake air temperature (IAT) sensor(s)- malfunction | Wiring, IAT sensor(s) |
| P1149 | Manifold absolute pressure (MAP) sensor(s) – malfunction | Wiring, hose(s), MAP sensor(s), ECM |
| P1162 | Throttle position (TP) sensor(s)- malfunction | Wiring, TP sensor(s) |
| P1163 | Engine oil level switch – malfunction | Wiring, engine oil level switch, ECM |
| P1170 | Short term fuel trim (FT) – malfunction | Intake/exhaust leak, injector(s), fuel pressure, MAF sensor |
| P1177 | Engine oil sensor, quality/level/temperature – malfunction | Wiring, engine oil sensor |
| P1178 | Engine oil sensor, level – implausible signal | Wiring, oil level, engine oil sensor |
| P1179 | Engine oil sensor, quality – implausible signal | Wiring, engine oil sensor |
| P1180 | Engine oil sensor, temperature too high | Wiring, engine oil sensor |
| P1181 | Engine coolant blower motor!NC condenser blower motor – malfunction | Wiring, engine coolant blower motor/AIC condenser blower motor, ECM |
| P1182 | Starter motor relay – defective | Wiring, starter motor relay, ignition switch, ECM |
| P1183 | Cylinder cut-out solenoid, bank 1 -defective | Wiring, cylinder cut-out solenoid |
| P1184 | Cylinder cut-out solenoid, bank 2 – defective | Wiring, cylinder cut-out solenoid |
| P1185 | Engine oil sensor, quality – water in oil | Engine oil |
| P1186 | Fuel shut-off- recognised | Wiring, cruise control actuator, mechanical fault, ECM | P1200 – P1299 (Fuel and air metering – injector circuit) |
| P1225 | Intake manifold air control solenoid – malfunction | Wiring, intake manifold air control solenoid, ECM |
| P1233 | Throttle actuator- mechanical fault | Throttle actuator tight/sticking |
| P1235 | Supercharger (SC) pressure – incorrect | Supercharger (SC) bypass valve motor sticking, intake leak/blockage, SC, ECM |
| P1236 | Supercharger (SC) clutch – malfunction | Wiring, SC clutch, ECM | P1300 – P1399 (Ignition system or misfire) |
| P1300 | Crankshaft position (CKP) sensor(s) – malfunction | Wiring, flywheel ring gear damaged, CKP sensor(s) |
| P1335 | Engine speed (RPM) sensor – signal | Wiring, ECM |
| P1336 | Crankshaft position (CKP) sensor – signal | Wiring, air gap, flywheel ring gear damaged, CKP sensor |
| P1337 | Engine control module (ECM), RPM signal – output | Wiring, RPM sensor, ECM |
| P1340 | Camshaft position (CMP) sensor – signal | Wiring, CMP sensor, ECM |
| P1341 | Camshaft position (CMP) actuator- mechanical fault | Camshaft timing mechanism, CMP actuator |
| P1342 | Camshaft position (CMP) actuator- electrical fault | Wiring, connector, CMP actuator, ECM |
| P1355 | Cylinder cut-out solenoid, bank 1 -solenoid stuck open | Wiring, cylinder cut-out solenoid |
| P1356 | Cylinder cut-out solenoid, bank 2 -solenoid stuck open | Wiring, cylinder cut-out solenoid |
| P1357 | Cylinder cut-out system ON, cylinder 2, 3, 5 or 8 – inlet valve still opening | Mechanical fault |
| P1358 | Cylinder cut-out system OFF, cylinder 5 -exhaust valve not opening | Mechanical fault |
| P1359 | Cylinder cut-out system OFF, cylinder 2 -exhaust valve not opening | Mechanical fault |
| P1360 | Cylinder cut-out system OFF, cylinder 3 -exhaust valve not opening | Mechanical fault |
| P1361 | Cylinder cut-out system OFF, cylinder 8 -exhaust valve not opening | Mechanical fault |
| P1366 | Cylinder cut-out system, throttle switch-over valve – malfunction | Wiring, throttle switch-over valve |
| P1380 | Cylinder cut-out system OFF -one inlet valve of a cylinder is not opening | Mechanical fault |
| P1384 | Knock sensor (KS) 1, bank 2 – malfunction | Wiring, KS |
| P1385 | Knock sensor (KS) 2, bank 2 – malfunction | Wiring, KS |
| P1386 | Engine control module (ECM). knock control – defective | Fuel contamination, mechanical fault, ECM |
| P1397 | Camshaft position (CMP) sensor(s)- malfunction | Wiring, CMP sensor(s) | P1400 – P1499 (Emission control) |
| P1400 | Exhaust gas recirculation (EGR) solenoid -circuit malfunction | Wiring, EGR solenoid, hose(s), ECM |
| P1402 | Exhaust Gas Recirculation Open-Loop Control | |
| P1411 | Secondary air injection (AIR) system – malfunction | Wiring, connector, hoses, AIR pump, AIR solenoid |
| P1420 | Secondary air injection (AIR) valve/solenoid – defective | Wiring, fuse, AIR valve/solenoid, ECM |
| P1437 | Catalytic converter temperature sensor, bank 1 – defective | Wiring, catalytic converter temperature sensor, ECM |
| P1443 | Evaporative emission (EVAP) canister purge valve(s)- defective | Wiring, hoses, EVAP canister purge valve(s) |
| P1444 | Catalytic converter temperature sensor, bank 2 – defective | Wiring, catalytic converter temperature sensor, ECM |
| P1453 | Secondary air injection (AIR} pump relay- defective | Wiring, fuse, AIR pump relay, ECM |
| P1463 | Secondary air injection (AIR) system- defective | Wiring, hoses, AIR pump relay, AIR valve/ solenoid |
| P1470 | Boost Charge Control Solenoid | |
| P1490 | Evaporative emission (EVAP) canister purge valve(s)- defective | Wiring, hoses, EVAP canister purge valve(s) |
| P1491 | AIC system – pressure too high | AIC control module trouble code(s) stored | P1500 – P1599 (Vehicle or idle speed control) |
| P1519 | Camshaft position (CMP) control, bank 1 – mechanical fault | Camshaft position control system |
| P1522 | Camshaft position (CMP) control, bank 2 – mechanical fault | Camshaft position control system |
| P1525 | Camshaft position (CMP) actuator, bank 1 – defective | Wiring, CMP actuator, ECM |
| P1533 | Camshaft position (CMP) actuator, bank 2 – defective | Wiring, CMP actuator, ECM |
| P1542 | Accelerator pedal position (APP) sensor – signal | Wiring, APP sensor, ECM |
| P1550 | AIC compressor torque – implausible signal | AIC trouble code(s) stored |
| P1551 | AIC compressor clutch cut-off | Wiring, incorrect AIC control module, ECM |
| P1570 | Ignition switch control module/ECM – attempted theft/data bus/not compatible | Wiring, trouble code(s) stored in other system(s), ignition switch control module, ECM |
| P1580 | Throttle motor, bank 1, TPM/ISC – circuit malfunction | Wiring, throttle motor, ECM |
| P1581 | Throttle motor, bank 2, TPM/ISC – circuit malfunction | Wiring, throttle motor, ECM |
| P1584 | Brake pedal position (BPP) switch – malfunction | Wiring, BPP switch, trouble code(s) stored in other system(s) |
| P1587 | Engine control module (ECM), bank 1 & 2 – supply voltage | Wiring, connectors, ECM |
| P1588 | CAN data bus, central locking control module -· malfunction | Wiring |
| P1589 | Engine control module (ECM), bank 2, knock control – defective | Fuel contamination, mechanical fault, ECM | P1600 – P1699 (ECM – computer output circuit) |
| P1603 | CAN data bus, ignition switch control module – malfunction | Wiring |
| P1605 | Acceleration sensor,” ESP/ASR system -rough road signal, comparison of wheel speeds | Trouble code(s) stored in other system(s) |
| P1632 | Engine control module (ECM), bank 2 – internal fault | ECM |
| P1641 | Engine control module (ECM), bank 1 & 2 – TP signal | Wiring, ECM |
| P1642 | Engine control module (ECM) – incorrectly coded | ECM coded for MT with AT fitted |
| P1643 | Engine control module (ECM) – incorrectly coded/ data bus | ECM coded for AT with MT fitted, wiring |
| P1644 | Transmission control module (TCM) – supply voltage low | Wiring, TCM trouble code(s) stored |
| P1666 | Cylinder cut-out solenoid, bank 1 or 2 – does not open | Wiring, cylinder cut-out solenoid |
| P1681 | Engine control module (ECM), crash signal – plausibility | Wiring, connectors, SRS control module trouble code(s) stored, ECM | P1700 – P1799 (Transmission) |
| P1700 | Transmission shift control – malfunction | Wiring, transmission shift control valve, TCM trouble code{s) stored |
| P1701 | Transmission shift control valve – electrical fault | Wiring, transmission shift control valve |
| P1711 | Intake manifold air control solenoid – malfunction | Wiring, connectors, intake manifold air control solenoid, ECM |
| P1740 | Engine control module (ECM), load signal – plausibility | Wiring, electronic throttle system (ETS), MAF sensor, TP sensor, ECM |
| P1741 | Throttle position (TP) sensor, load signal – plausibility | Wiring, electronic throttle system (ETS), MAF sensor, TP sensor, ECM |
| P1747 | CAN data bus, TCM/instrument panel – malfunction | Wiring, trouble code(s) stored in other system(s) |
| P1750 | Transmission shift lever control module – supply voltage low . | Wiring, multifunction control module, transmission shift lever control module | P1800 – P1899 (Transmission) |
| P1817 | Reverse lamps – open/short circuit | Wiring short to ground/positive, supply voltage open circuit, reverse lamps switch |
| P1832 | Transmission shift lever control module – short circuit | Wiring, connector, transmission shift lever control module |
| P1833 | Transmission shift lever control module – open circuit | Wiring, connector, transmission shift lever control module |
| P1856 | Transmission shift lever recognition – malfunction | Transmission shift lever control module |
| P1860 | CAN data bus, VSS signal, rear axle – malfunction | Wiring, trouble code(s) stored in other system(s) |
| P1861 | CAN data bus, VSS signal, rear axle – malfunction | Wiring, trouble code(s) stored in other system(s) |
| P1875 | CAN data bus, transmission shift lever control module – malfunction | Wiring, transmission shift lever control module |
| P1876 | CAN data bus, VSS signal – malfunction | Wiring, trouble code(s) stored in other system(s), electronic traction control (ETC) module |
| P1893 | Travel Control Shock Absorber Module | P1900 – P1999 (Transmission) |
| P1904 | CAN data bus, TCM/instrument panel – malfunction | Wiring, trouble code(s) stored in other system(s) |
| P1906 | CAN data bus, stop lamp switch – malfunction | Wiring, trouble code(s) stored in other system(s), electronic ignition switch |
| P1910 | Transmission shift lever control module- supply voltage high | Wiring, multifunction control module, transmission shift lever control module |
| P1911 | Transmission shift lever illumination – open circuit | Transmission shift lever control module |
| P1912 | Transmission shift lever control module, range switch – implausible signal | Stored trouble code(s), transmission shift lever control module |
| P1925 | Transmission shift lever control module, immobilizer signal – plausibility | Wiring, trouble code(s) stored in other system(s), electronic ignition switch, transmission shift lever control module |