P233DFuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Open
The supply line that powers the solenoid of fuel pressure regulator B is open. Without supply the regulator cannot operate and the ECU cannot maintain rail pressure on this stage; sets when the controller sees no current flow even with the solenoid commanded on.
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Check engine light on Hard start
- no start
- or stalling under load Power loss especially at high load or rpm Possible long cranking time
Possible Causes
The components or conditions that trigger this code
- 1Supply line open or relay defective Fuse for regulator B supply blown Pin pushed back out of connector body
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 0.6-1.5 hours. Estimated cost: €80-€
- 2DIY possible
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
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