Turbo/Super Charger Bypass Valve Control Circuit High
The P0033 code means the vehicle's onboard diagnostic system has detected: Turbo/Super Charger Bypass Valve Control Circuit High. 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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What Are the Symptoms of P0033?
- Check Engine Light on
- Loss of turbo boost pressure
- Reduced engine power and acceleration
- Turbo may produce unusual whining noise
What Causes P0033? (Most Likely First)
- Faulty turbo bypass valve solenoid Very High
- Short circuit in bypass valve control wiring High
- Corroded connector at bypass valve Moderate
- ECM/PCM failure Low
Can I Still Drive with P0033?
Short distances only. P0033 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P0033 mean?
P0033 means the turbo or supercharger bypass valve control circuit has a high voltage condition, usually pointing to a wiring short or faulty solenoid.
Can I drive with P0033?
You can drive short distances, but you will likely experience reduced power due to improper boost control. Avoid heavy acceleration until repaired.
How is P0033 fixed?
The most common fix is replacing the bypass valve solenoid. In some cases, repairing a short in the wiring harness resolves the issue.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0033?
-
Confirm P0033 with scan tool and review freeze frame data
-
Inspect wiring and connector to the turbo bypass valve solenoid
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Measure voltage at the bypass valve solenoid connector with key on
-
Test bypass valve solenoid resistance and compare to specifications
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
Which Vehicles Commonly Get P0033?
- 2010-2020 Ford F-150 EcoBoost
- 2013-2019 Ford Escape 1.6L/2.0L EcoBoost
- 2012-2018 Volkswagen Jetta 1.4T
- 2010-2017 Chevrolet Cruze 1.4T
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