P3000moderate severityPowertrain
Turbo/Supercharger Boost Control Module Performance
on 2006 Mini Cooper S 1.6L I4 Supercharged · FWD
What this code means
The PCM detected the turbo/supercharger boost control module is not responding correctly to commanded boost levels. The module regulates wastegate or bypass valve position to control boost pressure.
Symptoms
- Check Engine Light
- Reduced boost pressure
- Loss of power under acceleration
- Turbo lag increased
- Poor fuel economy
Common causes
- Faulty boost control module
- Wastegate actuator failure
- Vacuum/pressure line leak
- Corroded module connector
- PCM communication error
Diagnostic steps
- Read freeze frame data and boost PIDs
- Command boost control module through scan tool
- Inspect vacuum and pressure lines to wastegate
- Check boost control module connector and wiring
- Measure actual vs commanded boost pressure
Repair notes
Replace boost control module or repair wiring. Verify wastegate actuator operation after repair.
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Powertrain codes on this vehicle
29CC
Misfire Cylinder 1
29CD
Misfire Cylinder 2
29CE
Misfire Cylinder 3
29CF
Misfire Cylinder 4
29D0
Misfire Cylinder 5
29D1
Misfire Cylinder 6
29D2
Misfire Cylinder 7
29E0
Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1