Network, generic

U0441 Invalid Data Received From Emissions Critical Control Information

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

U0441 does not name one controller: the title refers to emissions-critical control information, the data powertrain units exchange for emission-relevant functions. A receiver logs it when such a message arrives but fails plausibility, counter or checksum tests; if the information stops altogether, U0113 applies. Ford's 2014 OBD-II code list marks U0441 for the MIL, whereas U0113 carries no lamp flag there. California's OBD regulation explains the background: data from emission critical powertrain units must be dependable, and a communication fault that keeps a default action from working has to light the MIL. No manufacturer publishes thresholds for U0441. Expect the check engine light, further powertrain codes in the sending unit and a failed emissions inspection until the cause is cleared.

Likely causes

Software of the powertrain unit sending the emission data is outdated or mismatched
Fault in the powertrain CAN wiring or connectors corrupting messages
Low or unstable supply voltage at the sending or receiving unit

Symptoms

  • Check engine light on
  • Additional powertrain or network codes stored
  • Emissions inspection not passed while the code is present

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€80–700
Time0.5–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

engine control modulevehicle bus wiring

Related codes

U0113U0401U0442

References: performanceparts.ford.com, law.cornell.edu.