shogun
11-19-2008, 01:57 AM
All 1989–94 BMW vehicles equipped with a self diagnostic system have the ability to retrieve engine fault codes by counting MIL flashes. These are four-digit fault codes (pedal faults) and have different code numbers than those retrieved by the scan tool. Pedal fault codes can be retrieved with the ignition on, engine off, and with the gas pedal rapidly depressed to the floor five times without interruption.
See Table 4-6 for pedal code descriptions for 1989–94 models.
Table 4-6 Pedal fault codes for 1989–94 models (sheet 1 of 2)
PEDAL
CODE DESCRIPTION
1211 DME control unit did not pass self-test. Disconnect from power and reconnect after 10 minutes.
1212 Oxygen (O2 or Lambda) Sensor 2 (cylinders 4–6)
1213 Lambda Control System Bank 2: The ECM has been unable to maintain Lambda (fuel mixture or fuel trim) on Bank 2 (cylinders 4–6) of the engine.
1215 Air mass/volume sensor
1216 Throttle potentiometer
1218 “Output Stage, Group 1”
1219 “Output Stage, Group 2”
1221 Oxygen (O2 or Lambda) sensor 1
1222 Lambda Control System Bank 1: The ECM has been unable to maintain Lambda (fuel mixture or fuel trim) on Bank 1 (cylinders 1–3) of the engine.
1223 Coolant temperature sensor
1224 Intake air temperature sensor
1225 Knock sensor 1
1226 Knock sensor 2
1227 Knock sensor 3
1228 Knock sensor 4
1231 Battery voltage/DME main relay
1232 Throttle switch—idle
1233 Throttle switch—WOT
1234 Speedometer A Signal
1237 A/C compressor cut off
1241 False air mass sensor code—update the EPROM and replace the idle valve
1242 A/C compressor
1243 Crankshaft pulse sensor
1244 Camshaft sensor
1245 Intervention EGS
1247 Ignition secondary monitor
1251 Fuel injector 1 (or group 1)
1252 Fuel injector 2 (or group 2)
1253 Fuel injector 3
1254 Fuel injector 4
1255 Fuel injector 5
1256 Fuel injector 6
1257 Fuel injector 7
1258 Fuel injector 8
1261 Fuel pump relay control
1263 Purge valve
1264 Oxygen (O2 or Lambda) heater
1265 Fault lamp (check engine)
1266 VANOS
1267 Air pump relay control
1271 Ignition coil 1
1272 Ignition coil 2
1273 Ignition coil 3
1274 Ignition coil 4
1275 Ignition coil 5
1276 Ignition coil 6
1277 Ignition coil 7
1278 Ignition coil 8
1281 Control unit memory supply
1282 Fault code memory did not pass self-test. Disconnect from power and reconnect
after 10 minutes. Check charging system for over-voltage.
1283 Fuel injector output stage (can be set by a faulty ignition coil)
1286 Knock control test pulse
1444 No failures
Important Tips for Reading Pedal Fault Codes
• Blink codes cannot be retrieved if the scan tool is communicating with the vehicle.
• Blink code retrieval can be used for comparison and backup to the scan tool.
• V12 engines have two ECMs, one for each engine bank. Codes need to be retrieved from each bank separately. The left engine bank is on the driver's side of the vehicle, which is
Bank 2. The right passenger side is Bank 1. Be aware that each bank's induction system (MAF sensor and intake runners) are physically located on the opposite bank. To access
the second ECM, depress the gas pedal to the floor six times. All cylinder 7–12 codes begin with a two.
Source: http://www1.snapon.com/display/DocMgmtDisplayFile.aspx?fileid=4653
pages 21 and 22
See Table 4-6 for pedal code descriptions for 1989–94 models.
Table 4-6 Pedal fault codes for 1989–94 models (sheet 1 of 2)
PEDAL
CODE DESCRIPTION
1211 DME control unit did not pass self-test. Disconnect from power and reconnect after 10 minutes.
1212 Oxygen (O2 or Lambda) Sensor 2 (cylinders 4–6)
1213 Lambda Control System Bank 2: The ECM has been unable to maintain Lambda (fuel mixture or fuel trim) on Bank 2 (cylinders 4–6) of the engine.
1215 Air mass/volume sensor
1216 Throttle potentiometer
1218 “Output Stage, Group 1”
1219 “Output Stage, Group 2”
1221 Oxygen (O2 or Lambda) sensor 1
1222 Lambda Control System Bank 1: The ECM has been unable to maintain Lambda (fuel mixture or fuel trim) on Bank 1 (cylinders 1–3) of the engine.
1223 Coolant temperature sensor
1224 Intake air temperature sensor
1225 Knock sensor 1
1226 Knock sensor 2
1227 Knock sensor 3
1228 Knock sensor 4
1231 Battery voltage/DME main relay
1232 Throttle switch—idle
1233 Throttle switch—WOT
1234 Speedometer A Signal
1237 A/C compressor cut off
1241 False air mass sensor code—update the EPROM and replace the idle valve
1242 A/C compressor
1243 Crankshaft pulse sensor
1244 Camshaft sensor
1245 Intervention EGS
1247 Ignition secondary monitor
1251 Fuel injector 1 (or group 1)
1252 Fuel injector 2 (or group 2)
1253 Fuel injector 3
1254 Fuel injector 4
1255 Fuel injector 5
1256 Fuel injector 6
1257 Fuel injector 7
1258 Fuel injector 8
1261 Fuel pump relay control
1263 Purge valve
1264 Oxygen (O2 or Lambda) heater
1265 Fault lamp (check engine)
1266 VANOS
1267 Air pump relay control
1271 Ignition coil 1
1272 Ignition coil 2
1273 Ignition coil 3
1274 Ignition coil 4
1275 Ignition coil 5
1276 Ignition coil 6
1277 Ignition coil 7
1278 Ignition coil 8
1281 Control unit memory supply
1282 Fault code memory did not pass self-test. Disconnect from power and reconnect
after 10 minutes. Check charging system for over-voltage.
1283 Fuel injector output stage (can be set by a faulty ignition coil)
1286 Knock control test pulse
1444 No failures
Important Tips for Reading Pedal Fault Codes
• Blink codes cannot be retrieved if the scan tool is communicating with the vehicle.
• Blink code retrieval can be used for comparison and backup to the scan tool.
• V12 engines have two ECMs, one for each engine bank. Codes need to be retrieved from each bank separately. The left engine bank is on the driver's side of the vehicle, which is
Bank 2. The right passenger side is Bank 1. Be aware that each bank's induction system (MAF sensor and intake runners) are physically located on the opposite bank. To access
the second ECM, depress the gas pedal to the floor six times. All cylinder 7–12 codes begin with a two.
Source: http://www1.snapon.com/display/DocMgmtDisplayFile.aspx?fileid=4653
pages 21 and 22