B0100: Sensor Cleaning Air Blower Actuator A
Standardized SAE J2012 code · B01xx codes
What does B0100 mean?
The body control module has detected a fault in the driver door lock cylinder switch circuit. This switch detects key rotation in the door lock and is used for keyless functions and the alarm system.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
- High Lock cylinder switch failed
- Medium Door harness broken in door hinge area
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of B0100 on the same make and model first.
B0100 in the community
Ask about B0100No one has posted about B0100 yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your B0100 problem