P0401 · निर्माता की तकनीकी जानकारी

VOLKSWAGEN · 2020-06-09

Customer states MIL-on with P0496 Customer states MIL-on with P2440 Customer states MIL-on with U0284 Customer states MIL-on with P02CC, P02CE, P02D0, P02D2, P02D4, and P02D6 P02D7 Customer states oil leak from the engine Customer states MIL-on with P0442 Customer states MIL-on, HPFP mounting bolts loose/broken No crank, no start Customer states both headlights are cracked Customer states MIL-on with P0401

VOLKSWAGEN · 2020-06-08

Customer states MIL-on with P0496 Customer states MIL-on with P2440 Customer states MIL-on with U0284 Customer states MIL-on with P02CC, P02CE, P02D0, P02D2, P02D4, and P02D6 P02D7 Customer states oil leak from the engine Customer states MIL-on with P0442 Customer states MIL-on, HPFP mounting bolts loose/broken No crank, no start Customer states both headlights are cracked Customer states MIL-on with P0401

RAM · 2020-05-23

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P24A5-00 - EGR Cooler Bypass Bank 1 Control Stuck. P20EE-00 - NOx Catalyst Efficiency Below Threshold. P0299-00 - Turbocharger Underboost. P1451-00 - Diesel Particulate Filter System Performance. P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. P0420-00 - Catalyst System Efficiency Below Threshold Bank 1. P2002-00 - Diesel Particulate Filter Efficiency Below Threshold. P0191-00 - Fuel…

RAM · 2020-03-04

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P0626 - Generator Field Control Circuit High. P218F - Reductant No Flow Detected. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P0191 - Fuel Rail Pressure Sensor Circuit Performance. P0461 - Fuel Level Sensor 1 Performance. P0401 - EGR System Performance. P20EE - NOx Catalyst Efficiency Below Threshold. P061A - Level 2 Torque Performance. P061B - Internal Control Module…

FORD, LINCOLN · 2019-11-22

Some 2019-2020 Edge/Escape/Nautilus/Corsair vehicles equipped with 2.0L EcoBoost engines may exhibit low coolant, white smoke from the tailpipe, an over temperature warning in the instrument panel cluster (IPC), external coolant leaking, and/or illuminated MIL with DTCs P0217, P0401, P1026, P1285, P1299, P2196 or P2467 stored in the PCM. This may be due to an EGR Cooler that is leaking coolant into the engine intake and exhaust system. The EGR cooler should be inspected first to detect the presence of any internal leaks by a visual inspection and a pressure test as defined in the Workshop Manual (WSM). If any coolant is found leaking from the coolant chamber into the exhaust chamber, replace the EGR cooler. If no issues are detected with the EGR cooler, continue repair diagnosis using…

FORD · 2019-11-18

This message is superseding TSB 19-2271 to update the Issue, Action and Service Procedure. Some 2017-2018 F-Super Duty and 2019 F-Super Duty F-450/F-550 Chassis Cab only vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To correct the condition, follow the Service Procedure steps to reprogram the PCM and perform a mass air flow (MAF) parameter reset.

FORD · 2019-09-06

Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To resolve this condition, follow the Service Procedure steps to reprogram the PCM and perform a mass air flow (MAF) parameter reset.

TOYOTA · 2019-08-30

Warranty Enhancement Program: Toyota has received reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve in some vehicles. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

FORD · 2019-05-22

Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To resolve this condition, follow the Service Procedure steps to reprogram the PCM and perform a mass air flow (MAF) parameter reset. Follow the service procedure steps to correct the condition.

VOLVO · 2019-04-17

Diagnostic / Troubleshooting Procedures For EGR System Components; Diagnostic Trouble Codes (DTC) P0401-00, P0402-00, P04DD-00, P1121-00, P1121-98 Or SPN 2659 FMI 16, SPN 2659 FMI 18, SPN 412 FMI 0, SPN 412 FMI 15 - US10, US10+OBD13, US14+OBD*, US17+OBD* With A Variable Geometry Turbocharger (VGT)

MACK · 2019-04-17

Diagnostic / Troubleshooting Procedures For EGR System Components; Diagnostic Trouble Codes (DTC) P0401-00, P0402-00, P04DD-00, P1121-00, P1121-98 Or SPN 2659 FMI 16, SPN 2659 FMI 18, SPN 412 FMI 0, SPN 412 FMI 15 - US10, US10+OBD13, US14+OBD*, US17+OBD* With A Variable Geometry Turbocharger (VGT)

FORD · 2018-10-23

Some 2018 F-150 vehicles equipped with a 3.0L diesel engine built on or before 10-Oct-2018 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P06EA, P0315a, P20EE, P0401, P2201, P0106, P0191 and/or P061A stored in the powertrain control module (PCM). Follow the Service Procedure steps to correct the condition.

MACK · 2018-10-10

EGR Fault Codes / Diagnostic Trouble Codes ( DTC's ) SPN 412 FMI 0,2,5, SPN 4752 FMI 7, SPN 2659 FMI 18 / P040A, P040B, P1121, P2457, P0401, P04D9

VOLVO · 2018-10-10

EGR Fault Codes / Diagnostic Trouble Codes ( DTC's ) SPN 412 FMI 0,2,5, SPN 4752 FMI 7, SPN 2659 FMI 18 / P040A, P040B, P1121, P2457, P0401, P04D9

MAZDA · 2018-09-14

Some customers may experience a check engine light on and DTC P0401:00 stored in memory without any drivability issues. P0401:00 - [PCM] EGR flow insufficient detected. This concern may be caused by the detection logic for the DTC is too sensitive. To eliminate this concern, the control logic of the PCM has been modified.

MAZDA · 2017-11-28

If you receive a customer complaint of a Check Engine Light on with a DTC P0401 stored in memory, follow the repair procedure below.

RAM · 2017-07-19

EGR Cooler If a customer comes in with a check engine light for P0401, P2281 or P0234 and the,technician has determined the EGR Cooler is plugged with soot, please contact Stephen Alvarado at the STAR Center at (866) 799-1695 ext. (4720271). Cummins Engineering is currently investigating root cause of this condition. If you do not receive an answer or call back within 15 minutes, proceed with normal diagnostics.

RAM · 2016-08-19

Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. NOTE: **This bulletin contains optional software update that should only be used in situations where the customer is specifically complaining of a Drone Noise, Shudder, Pulsation, or Vibration under light throttle applications while vehicle is operating in MDS/ECO mode. There will be two separate software options displayed on the wiTECH flash tab. The software file released for this condition contains the verbiage ?OPTIONAL?. The other file is the standard software that does not contain improvements for the Drone/Shudder concern. If for some reason the customer finds this shudder improvement objectionable, the PCM software may…

TOYOTA · 2016-08-16

Warranty Policy Bulletin (POL16-04): Toyota has received reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve in some vehicles. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

LEXUS · 2016-07-28

TSB: Rev1 Warranty information has been updated. Some 2011 - 2012 CT 200h vehicles may exhibit a vibration due to rough idle and/or tapping noise from HV transaxle at cold start. The Check Engine Light may also illuminate with (DTC) P0401 (Exhaust Gas Recirculation Flow Insufficient Detected). Due to excess carbon build-up at the valve assembly, the valve will stick causing the engine RPM to fluctuate. Follow the procedures in this bulletin to address this condition.

LEXUS · 2016-07-28

TSB: REV1 WARRANTY INFORMATION HAS BEEN UPDATED. SOME 2011 – 2012 CT 200H VEHICLES MAY EXHIBIT A VIBRATION DUE TO ROUGH IDLE AND/OR TAPPING NOISE FROM HV TRANSAXLE AT COLD START. THE CHECK ENGINE LIGHT MAY ALSO ILLUMINATE WITH (DTC) P0401 (EXHAUST GAS RECIRCULATION FLOW INSUFFICIENT DETECTED). DUE TO EXCESS CARBON BUILD-UP AT THE VALVE ASSEMBLY, THE VALVE WILL STICK CAUSING THE ENGINE RPM TO FLUCTUATE. FOLLOW THE PROCEDURES IN THIS BULLETIN TO ADDRESS THIS CONDITION.

DODGE, JEEP · 2016-07-27

Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find the following DTCs set in the PCM memory: · **U0140 - Lost Communication With Body Control Module (BCM) (10-12 MY only). · Auto Shutdown (ASD) Relay Enhancements To Improve Fuel Pump Relay Initialization At Key On - (10-12 MY only).** · P0401 - EGR System Performance. In addition the customer may notice one of the following conditions: · Hard to start, long crank time or even a no start. The customer may describe that If the gas pedal is pushed slightly the vehicle starts as expected (11…

VOLKSWAGEN · 2016-06-20

TO UPDATE GOLF (EXCHANGE PARTS) TIME UNITS DUE TO SAGA/ELSA UPDATES 6/13/16. MIL ON, DTC P0401 Exhaust Gas Recirculation Flow Insufficient Stored in ECM Fault Memory, Could be accompanied with Fault P2463 DPF Soot Accumulation.

LEXUS · 2016-06-16

Warranty Policy Bulletin (POL16-02): Lexus has received reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve in some vehicles. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

LEXUS · 2016-06-16

Dealer Letter: In these vehicles, Lexus has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

LEXUS · 2016-06-16

Dealer email: In these vehicles, Lexus has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

TOYOTA · 2016-06-16

Warranty Policy Bulletin (POL16-04): In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

TOYOTA · 2016-06-16

Dealer Letter: In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

TOYOTA · 2016-06-16

Dealer email: In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.

LEXUS · 2016-06-16

"DEALER LETTER: IN THESE VEHICLES, LEXUS HAS RECEIVED SOME REPORTS OF A ROUGH IDLE AND/OR RATTLE NOISE FROM THE TRANSAXLE AT COLD START DUE TO A STICKING EXHAUST GAS RECIRCULATION (EGR) VALVE. IF THIS OCCURS, THE VEHICLE MAY ILLUMINATE THE CHECK ENGINE LIGHT AND SET DIAGNOSTIC TROUBLE CODE (DTC) P0401."