Fault Codes

These codes apply to all U.S. E36 cars with 6 cylinder engines before OBDII (model year '96).

Turn the ignition to the On position, but do not start the car.

Immediately depress the accelerator fully and release fully 5 times in quick succession.

Wait a couple of seconds.

The Check Engine light will flash once, then start to blink. All codes are comprised of 4 digits. The number of blinks corresponds to the fault code. For example, ON, pause, ON ON, pause, ON ON, pause, ON ON, off would be a 1222.

Each four digit code will be flashed sequentially. When the codes start to repeat, all stored codes have been displayed.

DME Control Unit	1211
Air Mass/Volume Sensor	1215
Throttle Potentiometer	1216
Output Stage, Group #1	1218
Output Stage, Group #2	1219
EGO Sensor #1	1221
EGO Sensor #2	1212
Lambda Control #1	1222
Lambda Control #2	1213
Coolant Temp. Sensor	1223
Intake Air Temp. Sensor	1224
Knock Sensor #1	1225
Knock Sensor #2	1226
Battery Voltage/DME Main Relay	1231
Speedometer "A" Signal	1234
A/C Compressor cut off	1237
A/C Compressor	1242
Crankshaft Pulse Sensor	1243
Camshaft Sensor	1244
Intervention, AEGS	1245
Ign. Secondary Monitor	1247
Fuel Injector #1	1251
Fuel Injector #2	1252
Fuel Injector #3	1253
Fuel Injector #4	1254
Fuel Injector #5	1255
Fuel Injector #6	1256
Fuel Pump Relay Control	1261
Idle Speed Actuator	1262
Purge Valve	1263
EGO Heater	1264
Fault Lamp (check engine)	1265
VANOS	1266
Air Pump Relay Control	1267
Ignition Coil, #1	1271
Ignition Coil, #2	1272
Ignition Coil, #3	1273
Ignition Coil, #4	1274
Ignition Coil, #5	1275
Ignition Coil, #6	1276
Control Unit Memory Supply	1281
Fault (code) Memory	1282
Fuel Injector Output Stage, no cyl #	1283
Knock Control Test Pulse	1286
No Failure	1444

Created by David Ortiz

Credit goes to Robert Bentley publishers and Jim C. at Bonneville Motor Werks.

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