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      12-26-2013, 11:48 AM   #1
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BMW ECU Error Codes Described (Pxxx codes as well)

Hopefully people will be able to use this thread to look up ECU error code descriptions as they arise on the forum. I'll fill in this thread in the next few days with other codes as well.

Table of Contents:

Sorted by BMW CodeSorted by "P" or "U" Code
271B - P0015, Post-422786 - P0193, wiki-diy
2722 - P0092, wiki-diy2787 - P3006, wiki-diy
2724 - P0132, Post-662788 - P2288, wiki-diy
2728 - P2297, Post-1327CE - P0191, wiki-diy
2729 - P2298, Post-9P0015 - 271B, Post-42
272D - P0056, Post-7P0030 - 273E, Post-64
272D - P0057, Post-7P0050 - 273F, Post-65
272D - P0058, Post-7P0056 - 272D, Post-7
2737 - P0068, Post-40P0057 - 272D, Post-7
2737 - P0106, Post-40P0058 - 272D, Post-7
2737 - P2191, Post-40P0068 - 2737, Post-40
2738 - P0068, Post-41P0068 - 2738, Post-41
2738 - P0106, Post-41P0068 - 27AA, Post-37
2738 - P2193, Post-41P0068 - 27AB, Post-35
2739 - P2430, Post-60P0073 - 2B64, Post-23
2739 - P2432, Post-60P0092 - 2722, wiki-diy
2739 - P2433, Post-60P0106 - 2737, Post-40
273A - P0136, Post-46P0106 - 2738, Post-41
273A - P013E, Post-46P0106 - 27AA, Post-37
273A - P2270, Post-46P0106 - 27AB, Post-35
273A - P2271, Post-46P0111 - 2B4C, Post-79
273B - P014A, Post-71P0116 - 2AF9, Post-85
273B - P0156, Post-71P0117 - 2AF9, Post-85
273B - P2272, Post-71P0118 - 2AF9, Post-85
273B - P2273, Post-71P0128 - 2B59, Post-2
273C - P2414, Post-3P0132 - 2724, Post-66
273D - P2415, Post-78P0133 - 2742, wiki-diy
273E - P0030, Post-64P0133 - 2771, wiki-diy
273F - P0050, Post-65P0136 - 273A, Post-46
2742 - P0133, wiki-diyP013E - 273A, Post-46
2743 - P0155, Post-61P014A - 273B, Post-71
274B - P2629, Post-10P0155 - 2743, Post-61
2751 - P112D, Post-18P0156 - 273B, Post-71
275A - P0358, wiki-diyP0160 - 27C9, Post-98
275A - P131C, wiki-diyP0171 - 275D, Post-67
275A - P133A, wiki-diyP0171 - 27BA, Post-68
275A - P2321, wiki-diyP0172 - 275D, Post-67
275A - P2322, wiki-diyP0172 - 27BA, Post-68
275D - P0171, Post-67P0174 - 27BB, Post-91
275D - P0172, Post-67P0175 - 275E, Post-5
275E - P0175, Post-5P0175 - 27BB, Post-91
2771 - P0133, wiki-diyP0177 - 27BA, Post-68
2779 - P0442, Post-76P0178 - 27BA, Post-68
277C - P114A, Post-77P0222 - 2B20, Post-86
277C - P114B, Post-77P0223 - 2B20, Post-86
277C - P2096, Post-77P0300 - 2B41, Post-29
277C - P2097, Post-77P0301 - 2B35, Post-16
2786 - P0193, wiki-diyP0301 - 2B42, Post-33
2787 - P3006, wiki-diyP0302 - 2B36, Post-30
2788 - P2288, wiki-diyP0303 - 2B37, Post-31
2789 - P0420, Post-72P0308 - 2B3C, Post-32
278A - P0430, Post-73P0358 - 275A, wiki-diy
27A1 - P156D, wiki-diyP0420 - 2789, Post-72
27A1 - P156E, wiki-diyP0430 - 278A, Post-73
27A1 - P156E, wiki-diyP0442 - 2779, Post-76
27AA - P0068, Post-37P0456 - 27C3, Post-59
27AA - P0106, Post-37P0491 - 27B0, Post-11
27AA - P2191, Post-37P0500 - 2B13, Post-82
27AB - P0068, Post-35P0638 - 2B15, Post-74
27AB - P0106, Post-35P0639 - 2B16, Post-49
27AB - P2193, Post-35P0692 - 27B8, Post-22
27AF - P1411, Post-51P112D - 2751, Post-18
27B0 - P0491, Post-11P114A - 277C, Post-77
27B2 - P1412, Post-12P114B - 277C, Post-77
27B8 - P0692, Post-22P1209 - 27E4, Post-17
27BA - P0171, Post-68P131C - 275A, wiki-diy
27BA - P0172, Post-68P133A - 275A, wiki-diy
27BA - P0177, Post-68P1411 - 27AF, Post-51
27BA - P0178, Post-68P1412 - 27B2, Post-12
27BB - P0174, Post-91P152C - 2B0D, Post-50
27BB - P0175, Post-91P152D - 2B0D, Post-50
27BB - P2079, Post-91P152E - 2B0D, Post-50
27BB - P2080, Post-91P152F - 2B0D, Post-50
27C3 - P0456, Post-59P154C - 2B25, Post-75
27C5 - P2430, Post-92P154D - 2B25, Post-75
27C6 - P2096, Post-26P154E - 2B25, Post-75
27C9 - P0160, Post-98P154F - 2B25, Post-75
27CE - P0191, wiki-diyP155C - 2B26, Post-44
27E3 - P2526, Post-6P155D - 2B26, Post-44
27E4 - P1209, Post-17P155E - 2B26, Post-44
2AF9 - P0116, Post-85P155F - 2B26, Post-44
2AF9 - P0117, Post-85P156D - 27A1, wiki-diy
2AF9 - P0118, Post-85P156E - 27A1, wiki-diy
2AF9 - P3198, Post-85P156F - 27A1, wiki-diy
2B0D - P152C, Post-50P1602 - 2B55, Post-38
2B0D - P152D, Post-50P1605 - 2B57, Post-4
2B0D - P152E, Post-50P1628 - 2B21, Post-15
2B0D - P152F, Post-50P1630 - 2B16, Post-49
2B13 - P0500, Post-82P1636 - 2B15, Post-74
2B15 - P0638, Post-74P1681 - 2B55, Post-38
2B15 - P1636, Post-74P1689 - 2B55, Post-38
2B15 - P2100, Post-74P1691 - 2B55, Post-38
2B16 - P0639, Post-49P16B1 - 2B29, wiki-diy
2B16 - P1630, Post-49P16B3 - 2B55, Post-38
2B16 - P210A, Post-49P16B7 - 2B29, wiki-diy
2B20 - P0222, Post-86P16B8 - 2B29, wiki-diy
2B20 - P0223, Post-86P16C1 - 2B29, wiki-diy
2B21 - P1628, Post-15P2079 - 27BB, Post-91
2B25 - P154C, Post-75P2080 - 27BB, Post-91
2B25 - P154D, Post-75P2096 - 277C, Post-77
2B25 - P154E, Post-75P2096 - 27C6, Post-26
2B25 - P154F, Post-75P2097 - 277C, Post-77
2B26 - P155C, Post-44P2100 - 2B15, Post-74
2B26 - P155D, Post-44P210A - 2B16, Post-49
2B26 - P155E, Post-44P2191 - 2737, Post-40
2B26 - P155F, Post-44P2191 - 27AA, Post-37
2B29 - P16B1, wiki-diyP2193 - 2738, Post-41
2B29 - P16B7, wiki-diyP2193 - 27AB, Post-35
2B29 - P16B8, wiki-diyP2270 - 273A, Post-46
2B29 - P16C1, wiki-diyP2271 - 273A, Post-46
2B35 - P0301, Post-16P2272 - 273B, Post-71
2B36 - P0302, Post-30P2273 - 273B, Post-71
2B37 - P0303, Post-31P2297 - 2728, Post-13
2B3C - P0308, Post-32P2298 - 2729, Post-9
2B41 - P0300, Post-29P2321 - 275A, wiki-diy
2B42 - P0301, Post-33P2322 - 275A, wiki-diy
2B4C - P0111, Post-79P2414 - 273C, Post-3
2B55 - P1602, Post-38P2415 - 273D, Post-78
2B55 - P1681, Post-38P2430 - 2739, Post-60
2B55 - P1689, Post-38P2430 - 27C5, Post-92
2B55 - P1691, Post-38P2432 - 2739, Post-60
2B55 - P16B3, Post-38P2433 - 2739, Post-60
2B57 – P1605, Post-4P2526 - 27E3, Post-6
2B59 - P0128, Post-2P2629 - 274B, Post-10
2B64 - P0073, Post-23P3198 - 2AF9, Post-85
CDB6 - UNK01, Post-88U1153 - CDC0, Post-14
CDC0 - U1153, Post-14UNK01 - CDB6, Post-88

Last edited by regular guy; 05-03-2015 at 05:15 PM..
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      12-26-2013, 11:48 AM   #2
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2b59 - P0128

2B59 - P0128

2B59 - P0128
Information saved inDME
Fault code 2B59 - P0128
Fault text Coolant thermostat monitoring
Fault description Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
Condition for fault identificationTest condition: For the period K_TMOT_OBD_DIFF_T_DELTA the sensor deviates from the model by more than -25° Kelvin (K_TMOT_OBD_DIFF_HIGH)…
.Terminal condition: Engine running
.Voltage condition: None
Condition for fault memory entryOnce during warm-up phase
Action in service1. Replace thermostat
.2. Perform electrical check on coolant sensor and replace as indicated
Fault effect and breakdown warningEngine warms to normal operating temperature very slowly / ineffective interior heating / MIL on after engine runs 2x
Driver informationWarning light: MIL
Service instructionNone
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      12-26-2013, 11:50 AM   #3
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273c - P2414

273C - P2414

273C - P2414
Information saved in DME
Fault code 273C - P2414
Fault text Oxygen sensor, part/full-load diagnosis, before cat., bank 1
Fault description O2 Sensor Exhaust Sample Error (Bank 1 Sensor 1)
Condition for fault identificationTest condition: Oxygen sensor voltage less than 4800 mV (K_LAVK_OBD_TL_SCHW_MAX) and greater than 3149 mV (K_LAVK_OBD_TL_SCHW_MIN) for a total of 1 (K_LAVK_OBD_TL_CNT) after a lag period before active functionality of 8s (K_LAVK_OBD_TL_T) seconds
.Terminal condition: Engine running - Condition part-load or full-load
.Voltage condition: None
Condition for fault memory entryK_LAVK_OBD_TL_T- seconds (8s) lag frr K_LAVK_OBD_TL_CNT-attempts (1x)
Action in service 1. Install oxygen sensor in exhaust system (oxygen sensor exposed to ambient air)
Fault effect and breakdown warningMIL on after engine runs 2x Possible negative effects on drivability
Driver information Warning light: MIL
Service instruction None
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      12-26-2013, 11:59 AM   #4
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2b57 – P1605

2B57 – P1605

2B57 – P1605
Information saved in DME
Fault code 2B57 - P1605
Fault text not translated
Fault description Safety Concept Torque Limitation Level 1
Condition for fault identificationTest condition: Safety-critical malfunction
.Terminal condition: Terminal 15
.Voltage condition: none
Condition for fault memory entry10 ms
Action in serviceThis fault memory entry is always a collateral error. The only way to rectify it is by resolving the malfunctions behind any other displayed fault memory entries.
Fault effect and breakdown warningCC message
.Engine speed limited
.Reduced power
Driver informationWarning light:
.EML, CC message, backup program
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      12-26-2013, 12:16 PM   #5
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275e - P0175

275E - P0175

275E - P0175
Information saved inDME
Fault code275E - P0175
Fault textOxygen sensor limit position fault bank 2
Fault descriptionSystem Too Rich (Bank 2)
Condition for fault identificationTest condition: Controller pegged at MAX threshold 1.25 (K_LAM_REG_F_MAX) for time of at least 30 sec. (K_LAM_DIAG_REG_T)
.Terminal condition: Engine running
.Voltage condition: none
Condition for fault memory entryController limit for K_LAM_DIAG_REG_T (60s)
Action in service1. Check fuel system for leaks, initiate test routine as indicated
.2. Check exhaust system for leaks
.3. Check HFM for leaks and correct operation
.4. Read out oxygen sensor diagnostic data, perform both oxygen sensor test routines as indicated
Fault effect and breakdown warningEngine runs erratically / Potential collateral error: Miss errors and lamda error MIL after engine runs 2x
Driver informationWarning light: MIL
Service instructionnone

Last edited by regular guy; 12-26-2013 at 12:23 PM..
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      12-26-2013, 12:21 PM   #6
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27e3 - P2526

27E3 - P2526

27E3 - P2526
Information saved inDME
Fault code27E3 - P2526
Fault textVacuum sensor, brake booster, plausibility
Fault descriptionVacuum Reservoir Pressure Sensor Circuit Range/Performance
Condition for fault identificationTest condition: Sensor value deviates substantially from model value, with sensor value > Model value ensuring that ELUP activation threshold remains valid
.Terminal condition: Engine running
.Voltage condition: none
Condition for fault memory entry1 min
Action in service1. Check vacuum line,
.2. Check 1-way check valves,
.3. Check brake booster
Fault effect and breakdown warningMIL on after engine runs 2x
Driver informationWarning light: MIL
Service instructionnone
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      12-26-2013, 12:23 PM   #7
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272d - P0056, 272d - P0057, 272d - P0058

272D - P0056

272D - P0056
Information saved inDME
Fault code272D - P0056
Fault textOxygen sensor, output-stage diagnosis, heater behind cat., bank 2
Fault descriptionHO2S Heater Control Circuit (Bank 2 Sensor 2)
Condition for fault identificationTest condition: Driver info includes OPENLOAD
.Terminal condition: none
.Voltage condition: none
Condition for fault memory entry100 ms
Action in service1. Check plug and wiring harness on post-cat sensor LSNK B2,
.2. If OK replace sensor
Fault effect and breakdown warningMIL on after engine runs 2x
Driver informationWarning light: MIL
Service instructionnone



272D - P0057

272D - P0057
Information saved inDME
Fault code272D - P0057
Fault textOxygen sensor, output-stage diagnosis, heater behind cat., bank 2
Fault descriptionHO2S Heater Control Circuit Low (Bank 2 Sensor 2)
Condition for fault identificationTest condition: Driver info includes short circuit to ground
Terminal condition: none
Voltage condition: None
Condition for fault memory entry100 ms
Action in service1. Check plug and wiring harness on post-cat sensor LSNK B2,
2. If OK replace sensor
Fault effect and breakdown warningMIL on after engine runs 2x
Driver informationWarning light: MIL
Service instructionNone


272D - P0058

272D - P0058
Information saved inDME
Fault code272D - P0058
Fault textOxygen sensor, output-stage diagnosis, heater behind cat., bank 2
Fault descriptionHO2S Heater Control Circuit High (Bank 2 Sensor 2)
Condition for fault identificationTest condition: Driver info includes short circuit to battery voltage
Terminal condition: none
Voltage condition: None
Condition for fault memory entry100 ms
Action in service1. Check plug and wiring harness on post-cat sensor LSNK B2,
2. If OK replace sensor
Fault effect and breakdown warningMIL on after engine runs 2x
Driver informationWarning light: MIL
Service instructionNone

Last edited by regular guy; 01-26-2014 at 12:38 AM..
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      12-26-2013, 12:23 PM   #8
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Thanks! this info will come in handy one day.
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      12-26-2013, 12:25 PM   #9
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2729 - P2298

2729 - P2298

2729 - P2298
Information saved inDME
Fault code2729 - P2298
Fault textOxygen sensor, coast-mode diagnosis before cat., bank 2
Fault descriptionO2 Sensor Out of Range During Deceleration (Bank 2 Sensor 1)
Condition for fault identificationTest condition: Oxygen sensor is available (via sensor temperature, no error code entries, etc.) but the AD value is less than 3398mV (K_LAVK_OBD_SA_SCHW) for a number of 2 (K_LAVK_OBD_SA_CNT) measurements
.Terminal condition: Engine running - overrun condition
.Voltage condition: none
Condition for fault memory entrynone
Action in service1. Check plug and wiring harness to pre-cat oxygen sensor LSVK B2 (focus on opens in wires for virtual ground and pumping current)
.2. Replace oxygen sensor
Fault effect and breakdown warningMIL on after engine runs 2x
Driver informationWarning light: MIL
Service instructionnone

Last edited by regular guy; 01-08-2014 at 02:17 PM..
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      01-08-2014, 02:17 PM   #10
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274b - P2629

274B - P2629

274B - P2629
Information saved inDME
Fault code274B - P2629
Fault textOxygen sensor pump current calibration fault before cat. converter, bank 2
Fault descriptionO2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 1)
Condition for fault identificationTest condition: Oxygen sensor is available, oxygen sensor voltage > 4951 mV (K_LAVK_OBD_SA_DIAG_OL)
.Terminal condition: Engine running - overrun condition
.Voltage condition: none
Condition for fault memory entryafter a defined SA phase the lag period K_LAVK_OBD_SA_T (2.5 sec) must be completed
Action in service1. Check plug and wiring harness on pre-cat oxygen sensor LSVK B2 (especially trim circuit wire IA),
.2. If OK, replace oxygen sensor
Fault effect and breakdown warningMIL lamp on after engine runs 2x /Small influence on drivability
Driver informationWarning light: MIL
Service instructionNone

Last edited by regular guy; 01-21-2014 at 06:54 PM..
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      01-08-2014, 02:24 PM   #11
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27b0 - P0491

27B0 - P0491

27B0 - P0491
Information saved inDME
Fault code27B0 - P0491
Fault textSecondary air system flow rate, bank 1
Fault descriptionSecondary Air Injection System Insufficient Flow (Bank 1)
Condition for fault identificationTest condition: sls_obdh_mdf_max_intg_norm (after roughly 30s)<K_SLS_OBDH_MDF_MIN_DEF and
.sls_obdh_lam_asv_intg_norm < k_SLS_OBDH_MDF_2_MAG or
.sls_obdh_lam_asv_intg_norm < k_SLS_OBDH_ASV_LI_OPE and K_SLS_OBDH_MDF_MIN_DEF>K_SLS_OBDH_MDF_MAX_DEF
.Terminal condition: Engine running
.Voltage condition: Battery voltage > 10.8 V (k_sls_obd_ub_min)
Condition for fault memory entry30000 ms
Action in service1. Disconnect secondary air line
.2. Carry out test routine
.3. If flow is too high, replace the ASV
.4. Otherwise check Line 1 for obstructions and replace as indicated
Fault effect and breakdown warningMIL is on after 2x engine cold start
Driver informationWarning light: MIL
Service instructionNone

Last edited by regular guy; 01-21-2014 at 06:54 PM..
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      01-08-2014, 02:32 PM   #12
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27b2 - P1412

27B2 - P1412

27B2 - P1412
Information saved inDME
Fault code27B2 - P1412
Fault textSecondary air system flow rate, main branch
Fault descriptionSecondary Air Pump/Secondary Air Valve Large Leak
Condition for fault identificationTest condition: sls_obdh_mdf_max_intg_norm (after roughly 30s) < K_SLS_OBDH_MDF_MIN_DEF and
.sls_obdh_lam_asv_intg_norm < k_SLS_OBDH_MDF_1_MAG and > k_SLS_OBDH_MDF_2_MAG or
.Terminal condition: Engine running
.Voltage condition: Battery voltage > 10.8 V (k_sls_obd_ub_min)
Condition for fault memory entry30000 ms
Action in service1. Check main harness for leaks and replace secondary air line as indicated
Fault effect and breakdown warningMIL is on after 2x engine cold start
Driver informationWarning light: MIL
Service instructionNone

Last edited by regular guy; 01-21-2014 at 06:53 PM..
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      01-08-2014, 02:39 PM   #13
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2728 - P2297

2728 - P2297

2728 - P2297
Information saved inDME
Fault code2728 - P2297
Fault textOxygen sensor, coast-mode diagnosis before cat., bank 1
Fault descriptionO2 Sensor Out of Range During Deceleration (Bank 1 Sensor 1)
Condition for fault identificationTest condition: Oxygen sensor is available (via sensor temperature, no error code entries, etc.) but the AD value is less than 3398mV (K_LAVK_OBD_SA_SCHW) for a number of 2 (K_LAVK_OBD_SA_CNT) measurements
.Terminal condition: Engine running - overrun condition
.Voltage condition: none
Condition for fault memory entrynone
Action in service1. Check plug and wiring harness to pre-cat oxygen sensor LSVK B1 (focus on opens in wires for virtual ground and pumping current)
.2. Replace oxygen sensor
Fault effect and breakdown warningMIL on after engine runs 2x
Driver informationWarning light: MIL
Service instructionNone

Last edited by regular guy; 01-21-2014 at 06:51 PM..
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      01-08-2014, 02:43 PM   #14
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Cdc0 - U1153

CDC0 - U1153

CDC0 - U1153
Information saved inDME
Fault codeCDC0 - U1153
Fault textCDBD Throttle-valve actuator CAN message, bank 2
Fault descriptionMessage Monitoring Throttle Actuator DPR Overwrite Error (Bank 2)
Condition for fault identificationTest condition: No new messages
.Terminal condition: Terminal condition: TERM87
.Voltage condition: Battery voltage > 6.8V (k_egas_can_ed_ub_min)
Condition for fault memory entry10 ms
Action in service1. Clear fault memory, EDR electronic throttle valve system test,
.2. Program DME,
3. Replace DME
Fault effect and breakdown warningCC message
Engine speed limited
Reduced power
MIL after engine runs 2x
Driver informationWarning light: MIL, EML, CC message, backup program
Service instructionNone

Last edited by regular guy; 01-21-2014 at 06:51 PM..
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      01-08-2014, 02:52 PM   #15
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2b21 - P1628

2B21 - P1628

2B21 - P1628
Information saved inDME
Fault code2B21 - P1628
Fault textThrottle-valve actuator pre-drive check, bank 1
Fault descriptionThrottle Valve Actuator Spring Test Malfunction during Opening (Bank 1)
Condition for fault identificationTest condition: Wire permanently disabled
.Terminal condition: TERM87
.Voltage condition: none
Condition for fault memory entry300 ms
Action in service1. Check enable wire B1
.2. Clear fault memory, perform EDR electronic throttle valve control system test
3. Replace EDR1
Fault effect and breakdown warningCC message
Engine speed limited
Reduced power
MIL after engine runs 2x
Driver informationWarning light: MIL, EML, CC message, backup program
Service instructionNone
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      01-08-2014, 02:57 PM   #16
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2b35 - P0301

2B35 - P0301

2B35 - P0301
Information saved inDME
Fault code2B35 - P0301
Fault textMisfire with cutoff, cyl. 1
Fault descriptionCylinder 1 Misfire Detected
Condition for fault identificationTest condition: 3.3V in miss window for at least 5 ms (K_AUSS_NS_TIME_MAX) or for entire miss window
.Terminal condition: Terminal 15
.Voltage condition: none
Condition for fault memory entryVaries according to load and rpm
Action in service1. Check spark plug, interchange with other plug or replace to localize malfunction.
.2. Run compression check.
3. Inspect cylinders to determine whether coolant and engine oil are entering.
Fault effect and breakdown warningCC message
Engine speed limited
Reduced power
MIL after engine runs 2x
Driver informationWarning light: MIL, EML, CC message, backup program
Service instructionNone
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      01-10-2014, 09:44 AM   #17
regular guy
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27e4 - P1209

27E4 - P1209

27E4 - P1209
Information saved inDME
Fault code27E4 - P1209
Fault textVacuum sensor, brake booster, plausibility
Fault descriptionBrake Booster Pump Shutoff Valve Plausibility
Condition for fault identificationTest condition: Constant violations of activation threshold or vacuum gradient is too low during activation
.Terminal condition: TERM87
.Voltage condition: none
Condition for fault memory entry5000 ms
Action in service1. Check ELUP fuse,
.2. Check wires,
.3. Replace ELUP
Fault effect and breakdown warningCC message
.Engine speed limited
.Reduced power
.MIL after engine runs 2x
Driver informationWarning light: MIL, EML, CC message, backup program
Service instructionNone

Last edited by regular guy; 01-21-2014 at 06:51 PM..
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      01-10-2014, 05:50 PM   #18
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2751 - P112d

2751 - P112D

2751 - P112D
Information saved inDME
Fault code2751 - P112D
Fault textOxygen sensor fault pump current cable before catalytic converter, bank 2
Fault descriptionO2 Sensor Negative Current or Positive Current Control Circuit/Open (Bank 2 Sensor 1)
Condition for fault identificationTest condition: Lambda factor lies within this range 1.001 (K_LAVK_OBD_PLAU_LAM_MIN) and 1.009 (K_LAVK_OBD_PLAU_LAM_MAX) and the post-catalyst lambda is still outside the range 88 mV (K_LAVK_OBD_PLAU_LANK_MAX) and 879 mV (K_LAVK_OBD_PLAU_LANK_MIN) OR oxygen sensor voltage
.Terminal condition: Engine running - Condition idle or part-load
.Voltage condition: none
Condition for fault memory entrynone
Action in service1. Check plug and wiring harness on pre-cat oxygen sensor LSVK B2 (especially IP pumping current),
.2. If OK, replace oxygen sensor
Fault effect and breakdown warningMIL lamp on after engine runs 2x /Small influence on drivability
Driver informationWarning light: MIL
Service instructionnone

Last edited by regular guy; 01-21-2014 at 06:50 PM..
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      01-13-2014, 11:03 AM   #19
happos2
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Stickey Please!!
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      01-13-2014, 11:34 AM   #20
///mawana
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Quote:
Originally Posted by happos2 View Post
Stickey Please!!
+1!
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      01-13-2014, 02:47 PM   #21
rsv4dan
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Perhaps you can help me with these two I found in my ecu -

27B8 E blower actuation electronic diagnostic
2B64 Shunt coolant temperature sensor

I have googled but little luck. They're codes common to the e46 but for completely different things.
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      01-13-2014, 03:05 PM   #22
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27b8 - P0692

27B8 - P0692

2B64 - P0073
Information saved inDME
Fault code27B8 - P0692
Fault textElectric fan, activation
Fault descriptionFan 1 Control Circuit High
Condition for fault identificationTest condition: ATIC39 diagnosis message
.Terminal condition: TERM87
.Voltage condition: Battery voltage > 9.8V (k_diag_tr_ub_min)
Condition for fault memory entry1000 ms
Action in service1. Check plug and wire on ELUE
.2. Check signal wire in wiring harness on DME
.3. Replace ELUE
Fault effect and breakdown warningFan has failed
.Constant rise in engine temperature leading to CC message
Driver informationWarning light: none
Service instructionnone

Last edited by regular guy; 01-21-2014 at 06:50 PM..
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