Diagnostic Trouble Codes - 1991
BMW
| 1211 | DME control unit. |
| 1215 | Air flow meter. |
| 1216 | Throttle Potentiometer. |
| 1221 | Oxygen sensor. |
| 1222 | Oxygen sensor control range limit. |
| 1223 | Coolant temperature. |
| 1224 | Intake air temperature sensor. |
| 1231 | Battery voltage. |
| 1232 | Idle switch. |
| 1233 | Full load switch. |
| 1251 | Fuel injector valves cyl. 1+3+5. |
| 1252 | Fuel Injector valves cyl. 2+4+6. |
| 1261 | Electrical fuel pump circuit. |
| 1262 | Idle control valve. |
| 1263 | Purge valve. |
| 1264 | Oxygen sensor heating. |
| 1444 | No failures. |
The diagnostic code memory can only be read out with the BMW DIAGNOSTIC SYSTEM.
