Source-backed diagnostic reference
C058B EV diagnostic code
Brake Booster Motor B Position Sensor Circuit/Open
Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.
Reference definitions
Search and canonical URL
Capitalization, underscores, hyphens, colons and spaces are normalized to this canonical code identity so alternate scan-tool formats do not create duplicate pages.