What does code P1774 mean on Audi vehicles?
The signal from hydraulic pressure sensor 1 is lower than expected, leading to insufficient hydraulic pressure control.
OBD-II Code Audi
P1774 — Audi — Hydraulic Pressure Sensor 1 Signal Too Low
The signal from hydraulic pressure sensor 1 is lower than expected, leading to insufficient hydraulic pressure control.
Common symptoms
- Transmission slipping
- delayed or soft gear engagement
Possible causes
- Faulty pressure sensor
- low hydraulic pressure
- internal transmission leakage
Initial recommendation
Inspect pressure sensor and transmission fluid condition, perform hydraulic pressure tests.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Audi code P1774 with your vehicle's actual symptoms for more complete diagnostic guidance.
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