OBD-II code · Powertrain (generic, extended)
P2B80 Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/Programmed
The boost control module B reports that its calibration data is not present or not learned. Boost regulation falls back to default values until programming or adaptation completes.
Is it safe to drive with P2B80?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule replaced without programming
- PossibleCalibration memory corrupted after voltage drop
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Boost Control Module B, Ecm
Related codes
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Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.