P0BD0Generator Inverter Temperature Sensor A Circuit Intermittent/Erratic
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0BD0 is reserved for a generator inverter temperature sensor A signal that jumps or briefly drops out instead of failing for good. A liquid-cooled inverter changes temperature slowly, so sudden steps point to a contact problem or to interference: a Hitachi patent on inverter systems explains that the small sensor signal can pick up noise from the high-voltage main circuit and has to be filtered statistically. No manufacturer documents P0BD0 itself publicly; CARB requires hybrid sensor inputs to be checked for such faults as well. Permanent faults are reported as P0BCE or P0BCF. Freeze-frame data and a wiggle test at the inverter connector help find the cause.
- What you may notice
- Warning lamp that comes and goes
- Brief drops in generator or hybrid power
- Jumping inverter temperature in live data
- Likely causes
- LikelyLoose or corroded contact at the inverter connector
- PossibleIntermittent fault inside the inverter assembly
- RareInterference from the high-voltage circuit on the sensor signal
- 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: €100 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.