P2B7F

Turbocharger/Supercharger Boost Control Module A Calibration Not Learned/Programmed

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–222 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Unstable engine operation
Check Engine Light Illuminates
Power limitation (limp mode)

Causes

Module calibration failed after replacement
Module software failure
Problems with electrical connections
Turbocharger control module malfunction
Wiring harness damage

How to Fix

Check module electrical connections
Perform calibration procedure using diagnostic equipment
Update module software (if available)
Check the integrity of the wiring harness
If necessary, replace the turbocharger control module

Related codes

P2B7E P2B80 P2B81