Turbo/Super Charger Boost Control Solenoid Circuit Low
The P0047 code means the vehicle's onboard diagnostic system has detected: Turbo/Super Charger Boost Control Solenoid Circuit Low. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $600 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Low or no turbo boost
- Reduced acceleration and power
- Engine may feel sluggish at highway speeds
Probable Causes (Ranked by Likelihood)
- Faulty boost control solenoid Very High
- Open or high-resistance wiring in solenoid circuit High
- Poor ground connection for boost solenoid Moderate
- ECM driver circuit malfunction Low
Step-by-Step Diagnostic Procedure
-
Confirm P0047 with scan tool and check freeze frame data
-
Measure voltage at the boost control solenoid connector
-
Check ground circuit for the solenoid
-
Test solenoid coil resistance and compare to manufacturer specs
Frequently Asked Questions
What does P0047 mean?
P0047 indicates a low voltage condition in the turbo or supercharger boost control solenoid circuit, typically caused by a faulty solenoid or open wiring.
Will P0047 damage my turbo?
P0047 itself typically results in low boost, which is less harmful than overboosting. However, prolonged driving without proper boost control can lead to increased engine strain.
What is the cost to fix P0047?
Repair costs range from $200 to $600 depending on whether the solenoid, wiring, or ECM driver needs to be repaired or replaced.
Sources
This page is built from documented references. Verify against your own service info before repair work.
P0047 on Diesel, EV & Equipment
The same code ID appears across other engines and platforms. The diagnostic flow varies by manufacturer — these are the platform-specific breakdowns:
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