P1749: Electronic Pressure Control Solenoid Circuit Low

MAZDA BMW FORD LINCOLN MERCURY VOLKSWAGEN OTHER

Severity

Medium

System

Manufacturer-Specific Powertrain

Last reviewed: Jan 1, 0001 Last updated: Jan 1, 0001

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What Does P1749 Mean?

P1749 is a manufacturer-specific diagnostic trouble code: Electronic Pressure Control Solenoid Circuit Low. This code applies to MAZDA, BMW, FORD, LINCOLN, MERCURY 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 P1749

⚠️ Check Engine Light (MIL) illuminated
⚠️ Electronic Pressure Control Solenoid reading at zero or minimum value
⚠️ Related system not functioning or in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Open or broken wire in Electronic Pressure Control Solenoid circuit
🔍 Poor ground connection at Electronic Pressure Control Solenoid
🔍 Faulty Electronic Pressure Control Solenoid with no output signal
🔍 Disconnected or loose Electronic Pressure Control Solenoid connector
🔍 Blown fuse in related circuit

Frequently Asked Questions

What does P1749 mean?

P1749 indicates: Electronic Pressure Control Solenoid Circuit Low. The vehicle's computer has detected that the Electronic Pressure Control Solenoid is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1749?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1749 for extended periods may cause additional problems.

How much does it cost to fix P1749?

Repair costs for P1749 typically range from $20 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

🔧 Repair broken wire or restore ground in Electronic Pressure Control Solenoid circuit
🔧 Clean and secure Electronic Pressure Control Solenoid connector and ground points
🔧 Replace failed Electronic Pressure Control Solenoid

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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.