Turbo/Super Charger Boost Sensor "B" Circuit Low
The P0241 code means the vehicle's onboard diagnostic system has detected: Turbo/Super Charger Boost Sensor "B" Circuit Low. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $80 - $400 (parts and labor)
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What Are the Symptoms of P0241?
- Check Engine Light on
- Reduced power or limited boost
- Possible hesitation under acceleration
What Causes P0241? (Most Likely First)
- Signal wire shorted to ground High
- Failed sensor High
- Corroded or water-damaged connector Moderate
- Engine computer input fault Low
Can I Still Drive with P0241?
Short distances only. P0241 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P0241 mean?
P0241 means Turbo/Super Charger Boost Sensor "B" Circuit Low. The signal from boost pressure sensor "B" is below its normal range, which usually points to a short to ground or a failed sensor.
Can I drive with this code?
Usually for short distances, but the engine computer may limit boost, so expect reduced power until it is repaired.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0241?
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Find which sensor is "B" on your engine in the service information. The letter is set by the manufacturer.
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Inspect the sensor connector and harness for damage, corrosion or oil contamination.
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Check the sensor's reference voltage, ground and signal on a scan tool or meter, and compare with the service specification.
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
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