P1252 — Pressure Regulator Control Solenoid Valve No. 2 Circuit Malfunction

What Does P1252 Mean?

P1252 is a manufacturer-specific diagnostic trouble code: Pressure Regulator Control Solenoid Valve No. 2 Circuit Malfunction. This code applies to KIA, MAZDA, VOLKSWAGEN, FORD, LINCOLN vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1252

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic Pressure Regulator Control Solenoid Valve No. 2 readings
⚠️ Related system operating intermittently
⚠️ Reduced engine performance

Common Causes

🔍 Wiring issue in Pressure Regulator Control Solenoid Valve No. 2 circuit (damaged, chafed, or corroded)
🔍 Faulty Pressure Regulator Control Solenoid Valve No. 2 connector or terminal
🔍 Failed Pressure Regulator Control Solenoid Valve No. 2
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does P1252 mean?

P1252 indicates: Pressure Regulator Control Solenoid Valve No. 2 Circuit Malfunction. The vehicle's computer has detected that the Pressure Regulator Control Solenoid Valve No. 2 is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1252?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1252 for extended periods may cause additional problems.

How much does it cost to fix P1252?

Repair costs for P1252 typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair Pressure Regulator Control Solenoid Valve No. 2 wiring and connectors
🔧 Replace faulty Pressure Regulator Control Solenoid Valve No. 2

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1252: Pressure Regulator Control Solenoid Valve No. 2 Circuit Malfunction