P004C
Turbocharger/Supercharger Boost Control B Circuit Low
P004C is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Boost Control B Circuit Low. Common causes: open or short circuit in wiring harness, turbocharger control solenoid valve malfunction. Estimated repair cost: $56–333.
Symptoms
- Reduced engine power
- Increased fuel consumption
- Unstable engine operation
Causes
- Open or short circuit in wiring harness
- Turbocharger control solenoid valve malfunction
- Mechanical failure of the turbocharger
- Engine ECU malfunction
How to Fix
- Check the integrity of the wiring harness
- Check the resistance of the turbo control solenoid
- Check the operation of the turbine on the stand
- If necessary, replace faulty components
Related codes
Error P004C by Vehicle Brand
FAQ
What does the P004C code mean?
P004C is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Boost Control B Circuit Low
What causes a P004C error code?
The most common causes of P004C include: Open or short circuit in wiring harness; Turbocharger control solenoid valve malfunction; Mechanical failure of the turbocharger; Engine ECU malfunction.
How do I fix a P004C diagnostic trouble code?
To fix P004C: Check the integrity of the wiring harness. Check the resistance of the turbo control solenoid. Check the operation of the turbine on the stand. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P004C?
Limited driving only, diagnose soon
How much does it cost to fix P004C?
The estimated repair cost for P004C is $56–333. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat