P0748Line pressure control solenoid (VFS) fault
- Hyundai/Kia code · Transmission
- Turns on the check-engine light
- How the car detects it
- The variable-force solenoid that sets the transmission's hydraulic line pressure has a fault. The transmission may go into a fail-safe gear. Check the wiring between computer and transmission before the solenoid or valve body.
- What you may notice
- Check-engine light
- Harsh shifts or stuck in one gear
- Likely causes
- PossibleThe solenoid
- PossibleValve-body internal harness or the external transmission harness
- RareEngine/transmission computer
- Sources
- static.nhtsa.gov › SB-10059670-2273.pdf · official document
- static.nhtsa.gov › SB-10059669-2273.pdf · official document
Backed by an official manufacturer document.
From Obdaryn's Hyundai/Kia pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.