OBD-II code · Body
B0102 Power Mirror Switch Circuit
The body control module has detected a fault in the power mirror switch circuit. The switch input does not match a valid pattern — mirror adjustment may be inoperative.
Is it safe to drive with B0102?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyMirror switch failed
- PossibleWiring or connector open
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Mirror Switch, Door Wiring Harness, Body Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.