BMW vehicles obd1 codes retrieval

You can get the check engine light codes of BMW vehicles for models made before 1995 using the check engine light. All you need to are:

Turn ignition key to run with engine not running
Depress gas pedal 5 times in wide open throttle (WOT) position within 5 seconds
Read the flash codes in the dash using the code table below.

Flash Code Table:

Code 1211 MCU malfunction
Code 1215 Air mass flow sensor fault
Code 1221 Oxygen sensor
Code 1222 Oxygen sensor control
Code 1223 Engine coolant temperature
Code 1224 Air intake temperature
Code 1231 Battery voltage
Code 1232 Idle throttle valve switch
Code 1233 Full load throttle valve switch
Code 1251 and Code 1252 Injection valve
Code 1261 Fuel pump relay
Code 1262 Idle speed control valve
Code 1263 Fuel tank vent valve
Code 1264 Oxygen sensor heater relay
Code 1444 No failure

Notes:

Please get hold of BMW service manual to use the above table. Also, BMW codes can also come in single, double and triple digits. The codes can be reset by disconnecting the negative battery cable and reconnect.