U0527 code meaning
Invalid Data Received From Door Window Motor E
What U0527 means
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.
U0527 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0527
- Window reverses without an obstacle while closing
- Glass closes slowly or stops before the seal
Common causes of U0527
- PossibleGlass binding in the run channel or sash, distorting motor load
- PossibleWindow motor E electronics faulty
- Less likelyWorn or damaged regulator mechanism
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Door window motor e
What each part of U0527 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 27 | The exact fault in that area. |
What to do next
- Note U0527 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0527
What does U0527 mean?
U0527 means "Invalid Data Received From Door Window Motor E". U0527 is logged when a receiver rejects the content sent by window motor E. It is a generic code, so it means the same on every make.
Is it safe to drive with U0527?
U0527 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0527 fail an emissions test?
U0527 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0527 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will U0527 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.