Procedure for Acquiring Flash Codes from your BMW |
| Instructions by Ben Thongsai, bimmers.com, inc. |
| Note: Your BMW must have Motronic version 1.1 or higher. Motronic 1.0 cars do not have self diagnostic flash code capability (as evidenced by the lack of a Check Engine light). |
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| DME Version | M1.x | M1.x | M3.1 | M3.3 | M3.3.1 | |
| Malfunction | MCU 1 | MCU 2 | ||||
| DME Control Unit | 1211 | 2211 | 1211 | 1211 | 1211 | |
| Air Mass/Volume Sensor | 1215 | 2215 | 1215 | 1215 | 1215 | |
| Throttle Potentiometer | 1216 | -- | 1216 | 1216 | 1216 | |
| Output Stage, Group #1 | -- | -- | -- | 1218 | 1218 | |
| Output Stage, Group #2 | -- | -- | -- | 1219 | 1219 | |
| EGO Sensor #1 | 1221 | 2221 | 1221 | 1221 | 1221 | |
| EGO Sensor #2 | -- | -- | -- | 1212 | -- | |
| Lambda Control #1 | 1222 | 2222 | 1222 | 1222 | 1222 | |
| Lambda Control #2 | -- | -- | -- | 1213 | -- | |
| Coolant Temp. Sensor | 1223 | -- | 1223 | 1223 | 1223 | |
| Intake Air Temp. Sensor | 1224 | -- | 1224 | 1224 | 1224 | |
| Knock Sensor #1 | -- | -- | -- | 1225 | 1225 | |
| Knock Sensor #2 | -- | -- | -- | 1226 | 1226 | |
| Knock Sensor #3 | -- | -- | -- | 1227 | -- | |
| Knock Sensor #4 | -- | -- | -- | 1228 | -- | |
| Battery Voltage/DME Main Relay | 1231 | 2231 | 1231 | 1231 | 1231 | |
| Throttle Idle Switch | 1232 | 2232 | -- | -- | -- | |
| Throttle WOT Switch | 1233 | 2233 | -- | -- | -- | |
| Speedometer "A" Signal | -- | -- | -- | 1234 | 1234 | |
| A/C Compressor cut off | -- | -- | -- | 1237 | 1237 | |
| A/C Compressor | -- | -- | -- | 1242 | 1242 | |
| Crankshaft Pulse Sensor | -- | -- | -- | 1243 | 1243 | |
| Camshaft Sensor | -- | -- | -- | 1244 | 1244 | |
| Intervention, AEGS | -- | -- | -- | 1245 | 1245 | |
| Ign. Secondary Monitor | -- | -- | -- | 1247 | 1247 | |
| Fuel Injectors (group #1) | 1251 | 2251 | -- | -- | -- | |
| Fuel Injectors (group #2) | 1252 | 2252 | -- | -- | -- | |
| Fuel Injector #1 | -- | -- | 1251 | 1251 | 1251 | |
| Fuel Injector #2 | -- | -- | 1252 | 1252 | 1252 | |
| Fuel Injector #3 | -- | -- | 1253 | 1253 | 1253 | |
| Fuel Injector #4 | -- | -- | 1254 | 1254 | 1254 | |
| Fuel Injector #5 | -- | -- | 1255 | 1255 | 1255 | |
| Fuel Injector #6 | -- | -- | 1256 | 1256 | 1256 | |
| Fuel Injector #7 | -- | -- | -- | 1257 | -- | |
| Fuel Injector #8 | -- | -- | -- | 1258 | -- | |
| Fuel Pump Relay Control | 1261 | 2261 | 1261 | 1261 | 1261 | |
| Idle Speed Actuator | 1262 | -- | 1262 | 1262 | 1262 | |
| Purge Valve | 1263 | 2263 | 1263 | 1263 | 1263 | |
| EGO Heater | 1264 | 2264 | 1264 | 1264 | 1264 | |
| Fault Lamp (check engine) | -- | -- | -- | 1265 | 1265 | |
| VANOS | -- | -- | -- | -- | 1266 | |
| Air Pump Relay Control | -- | -- | -- | 1267 | 1267 | |
| Ignition Coil, #1 | -- | -- | -- | 1271 | 1271 | |
| Ignition Coil, #2 | -- | -- | -- | 1272 | 1272 | |
| Ignition Coil, #3 | -- | -- | -- | 1273 | 1273 | |
| Ignition Coil, #4 | -- | -- | -- | 1274 | 1274 | |
| Ignition Coil, #5 | -- | -- | -- | 1275 | 1275 | |
| Ignition Coil, #6 | -- | -- | -- | 1276 | 1276 | |
| Ignition Coil, #7 | -- | -- | -- | 1277 | -- | |
| Ignition Coil, #8 | -- | -- | -- | 1278 | -- | |
| Control Unit Memory Supply | -- | -- | -- | 1281 | 1281 | |
| Fault (code) Memory | -- | -- | -- | 1282 | 1282 | |
| Fuel Injector Output Stage, no cyl # | -- | -- | 1283 | 1283 | 1283 | |
| Knock Control Test Pulse | -- | -- | -- | 1286 | 1286 | |
| No Failure | 1444 | 2444 | 1444 | 1444 | 1444 |