• The hydraulic system consists of a valve body, an oil filter and an oil pump.
• The oil pump is powered by the engine. ATF passes through the oil filter and gets distributed along the oil channels.
• The oil becomes highly pressurized as it exits the oil pump and passes through the line pressure valve before being fed to the clutch & brake control valve, clutch, and brakes.
• TCM controls the hydraulic pressure using solenoid valves and controls clutch and brake operations.

Hydraulic System
Electronic Oil Pump (EOP)Hyundai Tucson (NX4) 2022-2025 Service Manual: Repair procedures
- Inspection
Inspection Item
• Battery efficiency inspection
• Battery voltage inspection
• Charging voltage insptection
• General inspection
• Terminal tightening state inspection
• Engine/ transaxle ground state inspection
• Wiring harness ground state inspect ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Oil Pressure Switch
- Removal and Installation
• Be careful not to damage the parts located under the vehicle
(floor under cover, fuel filter, fuel tank and canister) when raising
the vehicle using the lift.(Refer to General Information - "Lift and
Support Points")
1.Disconnect the nega ...