P0B58Hybrid/EV Battery Voltage Sense F Circuit Intermittent/Erratic
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0B58 is reserved for an erratic signal on cell sense channel F, and the honest state is short: no manufacturer documents this code publicly. The neighbouring codes are well covered; Ford and GM use the open circuit code P0B54, GM and Chrysler the range code P0B55, GM the fixed low and high limits. CARB demands monitoring of all battery voltage sensors of the storage system. An erratic test would catch sudden steps between successive samples that stay inside the low and high limits. Likely causes are a sense tap that loosens under vibration or a damaged section of the flexible circuit, and the symptoms typically come and go with road conditions and temperature.
- What you may notice
- Sporadic warning depending on road or temperature
- Occasional brief power reduction
- Likely causes
- LikelySense tap of channel F loosening under vibration
- PossibleDamaged section of the flexible sense circuit
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €6,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.