Powertrain
generic / SAE
P00AF
Turbocharger/Supercharger Boost Control A Module Performance
The dedicated boost control module A reports a performance fault — internal driver, sensor or self-diagnostic flagged an issue.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / AF
Possible causes
- Boost control module internal fault high
- Module software outdated, reflash may resolve low
- Supply voltage outside specification low
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 300–2000 €
- Estimated time: 1–5 h
- Component: boost control module
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012