Powertrain
generic / SAE
P005E
Turbocharger/Supercharger Boost Control B Supply Voltage Circuit Low
Supply voltage feeding boost control actuator B is below the expected range. Likely fuse, supply wiring or relay fault.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / 5E
Possible causes
- Supply fuse blown or relay failed high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation low
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 10–200 €
- Estimated time: 0.3–1.5 h
- Component: boost actuator b supply
- Component: relay
- Component: fuse
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012