Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
LEXUS
Reported code forms P0401
"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…
TOYOTA
Reported code forms P0401
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…
TOYOTA
Reported code forms P0401
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…
TOYOTA
Reported code forms P0401
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…
LEXUS
Reported code forms P0401
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…
LEXUS
Reported code forms P0401
Region 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…
LEXUS
Reported code forms P0401
Region 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…
TOYOTA
Reported code forms P0401
Region 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…
TOYOTA
Reported code forms P0401
Region 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…
LEXUS
Reported code forms P0401
"REGION 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…
LEXUS
Reported code forms P0401
"REGION 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…
TOYOTA
Reported code forms P0401
REGION 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…
TOYOTA
Reported code forms P0401
REGION 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…
NISSAN
Reported code forms P0401
IF YOU CONFIRM The MIL is ON with one or more of the following DTCs stored: * P020A - F: Cylinder 1 - 6 Injection Timing * P021A - B: Cylinder 7 - 8 Injection Timing * P060C: Internal Control Module Main Processor…
LEXUS
Reported code forms P0401
TSB: 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…
LEXUS
Reported code forms P0401
TSB: 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…
TOYOTA
Reported code forms P0401
TSB: Some Prius, Prius V, and Prius PHV vehciles may exhibit a rough idle or tapping noise from the HV transaxle at cold start. The Check Engine Light may also illuminate with (DTC) P0401 (Exhaust Gas Recirculation Flow…
TOYOTA
Reported code forms P0401
TSB: Some Prius, Prius V and Prius PHV vehicles may exhibit a vibration due to rough idle and/or tapping noise from the HV transaxle at cold start. The Check Engine Light may also illuminate with (DTC) P0401 (Exhaust…
TOYOTA
Reported code forms P0401
TSB: SOME PRIUS, PRIUS V, AND PRIUS PHV VEHCILES MAY EEXHIBVIT A ROUGH IDLE OR TAPPING NOISE FROM THE HV TRANSAXLE AT COLD START. THE CHECK ENGINE LIGHT MAY ALSO ILLUMINATE WITH (DTC) P0401 (EXHAUST GAS RECIRCULATION…
DODGE, JEEP
Reported code forms P0401
EGR Temperature Sensor This Tech Tip applies to 2016MY Jeep Grand Cherokee (WK) and Dodge Durango (WD) with the 3.6L Pentastar engine (ERC)~ Prior to replacing a component due to any of the following DTCs - P0401,…
ISUZU
Reported code forms P0401
Isuzu Motors Limited has determined that certain 2016 model year Isuzu N-Series trucks equipped with 5.2L (4HK1) diesel engines were built with an Engine Control Module (ECM) containing an On Board Diagnostic (OBD)…
RAM
Reported code forms P0401-00
Flash: 3.0L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software. A small number of customers may experience a Malfunction Indicator…
RAM
Reported code forms P0401
Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Customers may experience a Malfunction Indicator Lamp…
RAM
Reported code forms P0401
Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a…
RAM
Reported code forms P0401
Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a…
SUZUKI
Reported code forms P0401
SERVICE MANUAL UPDATE: EGR DTCS P0400, P0401 AND P0402. *TT
RAM
Reported code forms P0401-00
Flash: 3.0L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software. A small number of customers may experience a Malfunction Indicator…
MACK
Reported code forms P0401
EGR MASS FLOW RATE LOW. THIS BULLETIN IS RELEASED TO ADDRESS HIGH COUNTS OF DIAGNOSTIC TROUBLE CODE (DTC) SPN 2659 FMI 18 OR P0401 ONLY DURING NORMAL TO HIGH LOAD DRIVING CONDITIONS ON VEHICLES ASSEMBLED BETWEEN JANUARY…
VOLKSWAGEN
Reported code forms P0401
MIL ON, DTC P0401 Exhaust Gas Recirculation Flow Insufficient Stored in ECM Fault Memory, Could be accompanied with Fault P2463 DPF Soot Accumulation
VOLKSWAGEN
Reported code forms P0401
MIL ON, DTC P0401 Exhaust Gas Recirculation Flow Insufficient Stored in ECM Fault Memory, Could be accompanied with Fault P2463 DPF Soot Accumulation