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U0414 Invalid Data Received From Four-Wheel Drive Clutch Control Module

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

U0414 is set when a listener, usually the engine controller, receives frames from the four-wheel-drive clutch control module but cannot trust what they carry. That module regulates an on-demand coupling feeding torque to the secondary axle and reports its state on the bus. GM's 2025 ECM tables (25OBDG03B) test the secondary-axle signal every 12.5 ms for faulty rolling counters, protection values or checksums; 8 errors among 18 checks, with at least 11 V and 5 s of stable operation, record a Type B fault, which lights the MIL on a second faulty trip. Ford's 2014 code interpretation also marks U0414 as a MIL code. Lost contact with the module is U0114, a software mismatch U0314. Expect an AWD warning and drive on the primary axle until the data are valid again.

Likely causes

Four-wheel-drive clutch module sends faulty values (internal fault, moisture)
Disturbed CAN traffic from connectors, wiring or low supply voltage
Clutch module and receiver on software levels that do not match

Symptoms

  • AWD or 4WD warning in the cluster
  • Drive on the primary axle only
  • Check engine light after two trips

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–1,500
Time0.5–4 h

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

Parts involved

awd clutch control modulecan bus wiring

Related codes

U0114U0314U041EU0403

References: gsi.ext.gm.com, performanceparts.ford.com.