Turbo/Super Charger Wastegate Solenoid "B"
The P0247 code means the vehicle's onboard diagnostic system has detected: Turbo/Super Charger Wastegate Solenoid "B". This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $100 - $500 (parts and labor)
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What Are the Symptoms of P0247?
- Check Engine Light on
- Reduced power or limited boost
- Possible overboost or underboost
What Causes P0247? (Most Likely First)
- Failed wastegate solenoid "B" High
- Open or shorted wiring to the solenoid High
- Loose or corroded connector Moderate
- Split or disconnected vacuum or pressure line to the actuator Moderate
Can I Still Drive with P0247?
Short distances only. P0247 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P0247 mean?
P0247 means Turbo/Super Charger Wastegate Solenoid "B". The engine computer has detected a fault with the solenoid that controls wastegate "B", which regulates boost pressure.
Can P0247 cause overboost?
It can, if the wastegate stays closed. Many engines limit power when this code sets to protect against it, so avoid hard acceleration until it is fixed.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0247?
-
Find which wastegate solenoid is "B" on your engine in the service information.
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Inspect the solenoid connector, wiring and any vacuum or pressure lines to the wastegate actuator.
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Measure solenoid resistance and compare with the specification, then command it with a scan tool and confirm it clicks or moves.
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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