U0401 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
MAZDA
Reported code forms U0401
Some vehicles may display some (or all) of the following symptoms: • Check engine light on with DTC P061B • Light increase in engine rpms during acceleration • Transmission will not shift past 4th gear • Various U codes…
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CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
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CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
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CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
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CHEVROLET, GMC
Reported code forms U0401
This technical bulletin provides a procedure to correct the condition of Intermittent No Power or Vehicle will Hesitate DTC P0700, P0EFF, U1611, U0401.
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CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
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CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
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CHEVROLET
Reported code forms U0401
This service bulletin provides repair information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
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CHEVROLET
Reported code forms U0401
This service bulletin provides repair information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
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POLARIS
Reported code forms U0401
Polaris has determined that some Model Year 2023 Slingshot vehicles, produced between December 2022 and March 2023, could be missing the 9th digit of the model number in the ECM. The 9th digit is used for activation of…
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BENTLEY
Reported code forms U040100
Transmission DTC - U040100 50273/C461 (Invalid Data Received From ECM/PCM A) Technical Background: -During Adaptive Cruise Control (ACC) brake to stop events, it is possible for the brake pressure to decay at a rate…
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BENTLEY
Reported code forms U040100
Transmission DTC - U040100 50273/C461 Invalid Data Received From ECM/PCM "A" Customer statement / workshop findings: Diagnostic Trouble Code (DTC) U040100 50273/C461 Invalid Data Received From ECM/PCM "A" stored within…
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MAZDA
Reported code forms U0401:68
Some customers may experience an instrument cluster warning message "Safety and Driver Support Systems Partially Disabled" and DTC U0401:68 [VEHICLE CONTROL MODULE (US)] (Error signal received from PCM, DSC HU/CM,…
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FORD
Reported code forms U0401
Some 2019-2020 Mustang vehicles equipped with a 5.0L engine and a MT82 manual transmission may exhibit a concern of inoperative reverse camera and inoperative reverse lights. The vehicle will also exhibit messages in…
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BENTLEY
Reported code forms U040100
Transmission DTC - U040100 50273/C461 Invalid Data Received From ECM/PCM A. Customer statement / workshop findings: Diagnostic Trouble Code (DTC) U040100 50273/C461 Invalid Data Received From ECM/PCM "A" stored within…
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BENTLEY
Reported code forms U040100
Transmission DTC - U040100 50273/C461 Invalid Data Received From ECM/PCM 'A'. Customer statement / workshop findings: Diagnostic Trouble Code (DTC) U040100 50273/C461 Invalid Data Received From ECM/PCM "A" stored within…
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FORD
Reported code forms U0401
Some 2020 Escape vehicles may exhibit an illuminated malfunction indicator lamp (MIL) and diagnostic trouble codes (DTCs) U0100, U0401, P166B, P1753, P0929, and/or P0919. The vehicle may also exhibit an illuminated…
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FORD
Reported code forms U0401
SSM 48563 - 2017-2020 F-150 - No Crank/No Start, Multiple Illuminated Warning Indicators And/Or DTCs Some 2017-2020 F-150 vehicles may exhibit a no crank/no start, auto start stop inoperative, illuminated malfunction…
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MAZDA
Reported code forms U0401:68
INSTRUMENT CLUSTER WARNING MESSAGE "SAFETY AND DRIVER SUPPORT SYSTEMS PARTIALLY DISABLED" AND DTC U0401:68 IS STORED:Some customers may experience an instrument cluster warning message "Safety and Driver Support Systems…
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CADILLAC, CHEVROLET, GMC
Reported code forms U0401
This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and…
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MAZDA
Reported code forms U0401
Some vehicles may display some (or all) of the following symptoms: Check engine light on wit DTC P061B Surging on acceleration Transmission will not shift past 4th gear Various U codes (U0401 ABS, U0401, U0415 FSC,…
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MAZDA
Reported code forms U0401
Some vehicles may display some (or all) of the following symptoms: Check engine light on wit DTC P061B, Surging on acceleration, Transmission will not shift past 4th gear, Various U codes (U0401 ABS, U0401, U0415 FSC,…
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FORD
Reported code forms U0401
Some 2018-2019 F-Super Duty vehicles equipped with a 6.7L engine built on 1-Dec-2017 and through 1-Aug-2018 may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P2122, P2127, U0401, U0109, P0480, P008A,…
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MAZDA
Reported code forms U0401:00
Some vehicles may experience a lack of power and the check engine light on with DTC P061B:00 and U0401:00 stored in the PCM memory when engine cranking is interrupted and on A/T vehicles, DTC U0442:00 is also stored.…
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MAZDA
Reported code forms U0401:00
Some vehicles may exhibit an engine misfire during acceleration with the check engine light flashing and the following DTC(s). P0302:00 - Cylinder No.2 misfire detected and/or P0303:00 - Cylinder No.3 misfire detected…
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FORD
Reported code forms U0401
Some 2018 F-Super Duty vehicles equipped with a 6.7L engine built on 1-Dec-2017 and through 8-Jul-2018 may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P2122, P2127, U0401, U0109, P0480, P008A, P025C,…
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CADILLAC, CHEVROLET, GMC
Reported code forms U0401
This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and…
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MAZDA
Reported code forms U0401:00
Some vehicles may exhibit an engine misfire during acceleration with the check engine light flashing and the following DTC(s). P0302:00 - Cylinder No.2 misfire detected and/or P0303:00 - Cylinder No.3 misfire detected…
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MAZDA
Reported code forms U0401:00
Some vehicles may exhibit an engine misfire during acceleration with the check engine light flashing and the following DTC(s). P0302:00 - Cylinder No.2 misfire detected and/or P0303:00 - Cylinder No.3 misfire detected.…
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FORD
Reported code forms U0401
Some 2017-2018 F-150 vehicles built on or before 29-Sep-2017 may exhibit a no crank/no start, auto-start-stop inoperative, illuminated malfunction indicator lamp (MIL) and or powertrain malfunction indicator lamp,…
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