BMW Motronic Fault Codes
To display the fault codes on your Motronic system, turn the ignition switch to the on position, then push the accelerator pedal to the floor five times in succession. The CHECK ENGINE light will then begin to flash one or more of the following codes:
| Malfunctioning System DME Control Unit Air Mass/Volume Sensor Throttle Potentiometer Output Stage, Group 1 Output Stage, Group 2 EGO(O2) Sensor 1 EGO(O2) Sensor 2 Lambda Control 1 Lambda Control 2 Coolant Temp. Sensor Intake Air Temp. Sensor Knock Sensor 1 Knock Sensor 2 Knock Sensor 3 Knock Sensor 4 Battery Voltage/DME Main Relay Throttle Idle Switch Throttle WOT Switch Speedometer A Signal A/C Compressor cut off A/C Compressor Crankshaft Pulse Sensor Camshaft Sensor Intervention AEGS Ignition Secondary Monitor Fuel Injector 1 (or group 1) Fuel Injector 2 (or group 2) Fuel Injector 3 Fuel Injector 4 Fuel Injector 5 Fuel Injector 6 Fuel Injector 7 Fuel Injector 8 Fuel Pump Relay Control Idle Speed Actuator Purge Valve EGO Heater Fault Lamp (check engine) VANOS Air Pump Relay Control Ignition Coil 1 Ignition Coil 2 Ignition Coil 3 Ignition Coil 4 Ignition Coil 5 Ignition Coil 6 Ignition Coil 7 Ignition Coil 8 Control Unit Memory Supply Fault Code Memory Fuel Injector Output Stage Knock Control test Pulse No Failures |
Fault Code 1211 1215 1216 1218 1219 1221 1212 1222 1213 1223 1224 1225 1226 1227 1228 1231 1232 1233 1234 1237 1242 1243 1244 1245 1247 1251 1252 1253 1254 1255 1256 1257 1258 1261 1262 1263 1264 1265 1266 1267 1271 1272 1273 1274 1275 1276 1277 1278 1281 1282 1283 1286 1444 |