U0300

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

• NTB23-085 - ENGINE AND ENGINE COOLING
  NISSAN: Esm diagnostic procedure update for dtc U0300 stored in tcm service information the electronic service manual (esm) diagnostic procedure will be updated with additional information for diagnosing dtc U0300, for "can comm data", if sto
• 0815923 - SUSPENSION
  JEEP: Flash: air suspension control module (ascm) updates customers may experience a malfunction indicator lamp (mil) illumination. Upon further investigation the technician may find the following diagnostic trouble code (dtc). ? U0300-00 - inte
• A3923542048671_6 - ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
  AUDI: This bulletin provides a software update for when "all wheel drive malfunction message" is displayed in the instrument cluster and dtc U030000 is logged.
• S2102000003 - ELECTRICAL SYSTEM
  JEEP: Ascm dtc U0300 internal control module incompatibility
• S2102000003 - ELECTRICAL SYSTEM
  JEEP: Ascm dtc U0300 internal control module incompatibility
• S2102000003RevA - ELECTRICAL SYSTEM
  JEEP: Ascm dtc U0300 internal control module incompatibility
• S2102000003 - ELECTRICAL SYSTEM
  JEEP: Ascm dtc U0300 internal control module incompatibility
• 08-109-22 - EQUIPMENT ADAPTIVE/MOBILITY
  JEEP: Air suspension control module (ascm) updates for diagnostic trouble code (dtc) U0300-00 this bulletin involves informing the technician about reprogramming the ascm with the latest available software after replacement of the new ascm only.
• SA-003-22d - ELECTRICAL SYSTEM:SOFTWARE
  MAZDA: Mazda3 and cx-30: prior to february 8, 2022, some vehicles may store dtc U0300:57 (body control module (bcm) internal malfunction) and cannot be erased after a bcm replacement or mdars bcm software update (not with bcm update for sspc5 or 4
• SA-003-22c - ELECTRICAL SYSTEM:ADAS:HUD:SOFTWARE
  MAZDA: Mazda3 and cx-30: prior to february 8, 2022, some vehicles may store dtc U0300:57 (body control module (bcm) internal malfunction) and cannot be erased after a bcm replacement or mdars bcm software update (not with bcm update for sspc5 or 4
• SA-003-22b - ELECTRICAL SYSTEM
  MAZDA: Cx-30. Mazda3: prior to february 8, 2022, some vehicles may store dtc U0300:57 (body control module (bcm) internal malfunction) and cannot be erased after a bcm replacement or mdars bcm software update (not with bcm update for sspc5 or 4621
• SA-003-22a - ELECTRICAL SYSTEM
  MAZDA: Some vehicles may store dtc U0300:57 (body control module (bcm) internal malfunction) after a bcm replacement or mdars bcm software update (not with bcm update for sspc5 or 4621b using mdrt) and the dtc cannot be erased. This is caused by a
• SA-003/22 - ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE
  MAZDA: Some vehicles may store dtc U0300:57 (body control module (bcm) internal malfunction) after a bcm replacement or mdars bcm software update (not with bcm update for sspc5 or 4621b using mdrt) and the dtc cannot be erased. This is caused by a
• A3921452048671_5 - ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
  AUDI: This bulletin contains instructions for when dtc U030000 appears and ÿ¢ÿ¿ÿ¿all wheel drive malfunction messageÿ¢ÿ¿ÿ is displayed in the instrument cluster.
• A3920262048671_4 - ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
  AUDI: This bulletin contains instructions for when dtc U030000 appears and 'all wheel drive malfunction message' is displayed in the instrument cluster.
• A341838 2048671- - ELECTRICAL SYSTEM:SOFTWARE
  AUDI: This bulletin contains instructions for when dtc U030000 appears and ?All wheel drive malfunction message? Is displayed in the instrument cluster.
• A341830 2048671_ - WHEELS
  AUDI: This bulletin contains instructions for when dtc U030000 appears and ?All wheel drive malfunction message? Is displayed in the instrument cluster.
• A341723 2048671- - POWER TRAIN
  AUDI: This bulletin contains instructions for when dtc U030000 appears and ?All wheel drive malfunction message? Is displayed in the instrument cluster.
• SSM72791 - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
  JAGUAR: "issue: engine does not crank, dtc U0300 00 logged either in the body control module (bcm), or powertrain control module (pcm) and transmission control module (tcm), with gateway module (gwm) and various other electronic control units (ecu
• 17561 - ELECTRICAL SYSTEM
  MERCURY: Delayed crank with no start, diagnostic trouble codes (dtc) U0300/P0606/P2105/P2107, malfunction indicator module (mil) and wrench light on. *mj
• 17666 - ENGINE AND ENGINE COOLING:ENGINE
  MERCURY: Diagnostic trouble code (dtc) U0300 (internal control module software incompatibility) stored in the pcm with no other dtc's present. *tt

• Ford Motor Company - Electric power steering failure Defect Investigation # PE14030

  The office of defects investigation (odi) opened a preliminary evaluation to investigate complaints of the loss of power steering while driving. The subject vehicles are equipped with a rack mounted electric power assisted steering (epas) unit.Some of the complaints alleged that the steering assist failed and resulted in increased steering efforts that contributed to a loss of control and in some cases a crash.The epas system was manufactured by trw automotive for ford and was designated as generation i.These units were first produced and put into vehicle production in july 2008 beginning with the model year (my) 2010 ford fusion and mercury milan.The system is comprised of a mechanical steering rack-and-pinion gear with torque sensor, electric assist motor, motor position sensor and a power steering control module (pscm). The pscm is self-monitoring and designed to detect faults within the system and can store diagnostic trouble codes (dtcs) if a problem is detected.There are 29 potential dtcs the system can detect.Many of these allow the system to go into reduced-assist steering mode by using the default vehicle speed signal should the live speed signal be lost, if voltage to epas system falls below 10.7 or goes above 17 volts, the temperature at the pscm goes above 105c (221f), or if high friction is detected.Some dtcs will cause the system to go into manual steering mode (no assist). On july 1, 2015, ford filed a defect information report (dir) identifying a safety related defect in trw gen i epas systems installed in some of the subject vehicles (nhtsa recall 15v-340, ford no. 15s18).The dir indicated that intermittent electrical connections caused by quality issues associated with conformal coat contamination and ribbon cable pin misalignment within the steering gear motor may lead to a loss of the motor position sensor signal, resulting in a sudden loss of power assist while driving.The recall covers approximately 393,623 vehicles built from september 2010 through february 2012:2011-12 fusion built sep 2010 - feb 2012; 2011-12 lincoln mkz built sep 2010 - feb 2012; 2011 milan built sep 2010 - dec 2010; 2011-13 taurus built sep 2010 - feb 2012; 2011-13 flex with 3.5l gtdi engine built sep 2010 - feb 2012; and 2011-13 mks, mkt with 3.5l gtdi engine built sep 2010 - feb 2012.The repair consists of updating the pscm software to prevent a loss of steering assist while driving. The revised software will provide audible and visual warnings to the driver. If one or more of the following dtcs are stored, C1B00-62, C200B-2f, C200B-61, C200B-62, C200C-2f, C200D-49, U0300-00, U2011-49, U2011-61, U3000-46, U3000-49, U3000-61, U3000-72, U3000-96, P07AE-09, the dealer will replace the epas system at no charge to the owner.Odis analysis of failure data for this pe identified a total of 2,584 complaints to odi and ford and 9,967 ford warranty claims related to the alleged defect.The recalled vehicles account for 1,634 of the complaints and 7,311 of the warranty claims.Odis analysis identified 40 complaints alleging crashes that may be related to loss of steering assist while driving, 20 of which involved vehicles included in fords recall.The information available for the alleged crashes were not sufficient to assess specific causes of the incidents or to verify epas malfunctions in each case.Most of the crashes were low-speed impacts with curbs or roadside objects resulting in wheel or minor body damage.None of the injury claims indicated medical attention was required.In addition, statistical modeling of the failure data by nhtsas national center for statistics and analysis projected 10-year failur
  

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