P1774 — Hydraulic Pressure Sensor 1 Too Low

What Does P1774 Mean?

P1774 is a manufacturer-specific diagnostic trouble code: Hydraulic Pressure Sensor 1 Too Low. This code applies to VOLKSWAGEN 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 P1774

⚠️ Check Engine Light (MIL) illuminated
⚠️ Hydraulic Pressure Sensor 1 Too Low not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Faulty Hydraulic Pressure Sensor 1 Too Low
🔍 Wiring or connector issue in Hydraulic Pressure Sensor 1 Too Low circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does P1774 mean?

P1774 indicates: Hydraulic Pressure Sensor 1 Too Low. The vehicle's computer has detected that the Hydraulic Pressure Sensor 1 Too Low is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1774?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1774 for extended periods may cause additional problems.

How much does it cost to fix P1774?

Repair costs for P1774 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.

Reported Repair Costs for P1774

Based on 6 owner-reported repair costs from NHTSA complaints.

Low End

$450

Typical

$600

High End

$3500

⚠️ These are owner-reported costs, not estimates. Actual costs vary by location, labor rates, and root cause. Source: NHTSA complaints database.

What To Do Next

Possible Fixes

🔧 Inspect Hydraulic Pressure Sensor 1 Too Low and related wiring
🔧 Replace faulty Hydraulic Pressure Sensor 1 Too Low

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.

P1774: Hydraulic Pressure Sensor 1 Too Low