C0545VIN Not Programmed or Incompatible - BSCM
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- The brake system control module (BSCM) holds no vehicle identification number, or one that does not belong to the car it is fitted to. Modules store the VIN in non-volatile memory; GM patents describe a replacement module comparing its own stored VIN with the one held by another control unit and running a configuration routine when they differ, and point out that a swapped or tampered module shows up as a VIN discrepancy. The code therefore appears mainly after a used or new brake module has been installed without the programming and setup the maker requires; Saab 9-5 (2010) service data, for instance, demands programming plus configuration and setup after an EBCM replacement. No maker documents C0545 publicly with this meaning; GM uses the number for a power steering fault.
- What you may notice
- ABS or ESC warning lamp on after a module replacement
- Brake-related functions limited or disabled
- Likely causes
- LikelyNew brake module installed without VIN programming
- PossibleUsed module from another vehicle still carrying its old VIN
- RareProgramming session interrupted, for example by low battery voltage
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.