B0252
Driver Window Motor Down Circuit
The body control module has detected a fault in the driver window motor down-direction control circuit. The window may not lower correctly.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: medium
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
Ordered by how often each turns out to be the cause.
- Window motor failed or seizedCommon
- Wiring shorted or openPossible
Parts involved
- Window Motor
- Door Wiring Harness
B0252 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.