B0220
Front Wiper Motor Speed Circuit
The body control module has detected that the front wiper motor speed feedback does not match the commanded speed. The motor may run only on one speed or not at all.
- 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.
- Wiper motor brushes wornCommon
- Wiper relay failedPossible
- Wiring or connector faultLess likely
Parts involved
- Front Wiper Motor
- Body Control Module
- Wiper Relay
B0220 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.