Network, generic

U0527 Invalid Data Received From Door Window Motor E

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0527 is logged when a receiver rejects the content sent by window motor E. Mechanics can play a part. Subaru's bulletin 07-189-21 for the 2020 Legacy and Outback deals with front regulators whose glass tilted in the sash frame and bound, so the anti-entrapment function reacted erratically and the glass closed slowly or not at all; revised regulator and motor assemblies fixed it. Binding of that kind produces current and speed profiles a motor controller may treat as implausible, even though the bulletin itself names no network code. No manufacturer links U0527 or the letter E to a particular door. Check glass run channels and the regulator before suspecting electronics; U0226 means communication with motor E is lost entirely.

Likely causes

Glass binding in the run channel or sash, distorting motor load
Window motor E electronics faulty
Worn or damaged regulator mechanism

Symptoms

  • Window reverses without an obstacle while closing
  • Glass closes slowly or stops before the seal

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–550
Time0.5–2.5 h

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

Parts involved

door window motor e

Related codes

U0226U0526U0528

References: static.nhtsa.gov, law.cornell.edu.