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.
Supply voltage feeding boost control actuator B is below the expected range. Likely fuse, supply wiring or relay fault.
Common causes
- high
Supply fuse blown or relay failed
One of the most commonly reported causes for this code — check this first.
Typical part cost: $10-220
- low
Connector pins corroded - high contact resistance
Less common, but worth ruling out after the more likely causes.
Typical part cost: $10-220
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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.
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Related codes
See related trouble codes
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Frequently asked questions
What does P005E mean?
P005E means "Turbocharger/Supercharger Boost Control B Supply Voltage Circuit Low". It is a generic OBD-II code that points to a fault in the fuel & air metering / auxiliary emission controls.
What are the most common causes of P005E?
supply fuse blown or relay failed; connector pins corroded - high contact resistance; harness chafing through insulation — 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.
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