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.
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.
Common causes
- high
Module replaced without programming
One of the most commonly reported causes for this code — check this first.
Typical part cost: $60-440
- medium
Calibration memory corrupted after voltage drop
A plausible cause — test and verify before replacing parts.
Typical part cost: $60-440
See all causes + fix costs
Create a free Wrenchify account to unlock the rest for P2B80.
Unlock causesFree forever · No credit card
First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
Get the full step-by-step diagnosis
Create a free Wrenchify account to unlock the rest for P2B80.
Unlock diagnosisFree forever · No credit card
Related codes
See related trouble codes
Create a free Wrenchify account to unlock the rest for P2B80.
Unlock related codesFree forever · No credit card
Frequently asked questions
What does P2B80 mean?
P2B80 means "Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/Programmed". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2B80?
module replaced without programming; calibration memory corrupted after voltage drop — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
Get the full P2B80 diagnosis for your vehicle
Year, make, model + step-by-step repair help — free plan included.