Network, generic

U0113 Lost Communication With Emissions Critical Control Information

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

Unlike its neighbours, U0113 does not name one unit but a class of data: messages a controller depends on for emission control, for instance torque, speed or aftertreatment status supplied by another node. CARB's OBD II rule wants silence from a digital input recognised as a fault of its own with a dedicated code, and U0113 is the generic slot for that situation. Ford's 2014 five-digit code interpretation for its engine controllers includes U0113; which frames belong to it and how long they may be absent is not published by any maker. Implausible data of the same kind falls under U0441. Because the engine then has to use substitute values, a lit MIL and possibly reduced power are the likely outcome.

Likely causes

Fault in the CAN wiring or connectors carrying the emission-related frames
Sending module without power, ground or wake-up
Software or configuration mismatch after module replacement or update
Receiving controller internally faulty

Symptoms

  • MIL on
  • Engine on substitute values, possibly reduced power
  • Further U codes in other modules

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€80–1,500
Time1–5 h

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

Parts involved

vehicle networkcan bus wiring

Related codes

U0441U0100U0073U0401

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