• The battery must be in good condition and fully charged for this troubleshooting.

| Trouble symptom | Probable cause | Remedy |
| Engine will not crank | Battery charge low | Charge or replace battery |
| Battery cables loose, corroded or worn out | Repair or replace cables | |
| Transaxle range switch (Vehicle with automatic transaxle only) | Refer to AT group-automatic transaxle | |
| Fuse blown | Replace fuse | |
| Starter motor faulty | Replace | |
| Ignition switch faulty | Replace | |
| Engine cranks slowly | Battery charge low | Charge or replace battery |
| Battery cables loose, corroded or worn out | Repair or replace cables | |
| Starter motor faulty | Replace | |
| Starter keeps running | Starter motor faulty | Replace |
| Ignition switch | Replace | |
| Starter spins but engine will not crank | Short in wiring | Repair or replace wiring |
| Pinion gear teeth broken or starter motor | Replace | |
| Ring gear teeth broken | Replace fly wheel or torque converter |
Description and Operation
StarterHyundai Tucson (NX4) 2022-2026 Service Manual: Oil hydraulic Motor(Actuator)
- Description
The 4WD ECM controls the Pump Motor Pump (Actuator) to generating an
oil pressure. The pressure engages a multiple disk clutch to transfer
torque to the rear wheels. The torque to the rear wheels varies
according to the pressure on the clutch.
- Circuit Diagram
- ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Torque Converter Clutch Control Solenoid Valve (T/CON_VFS)
- Description
• Torque converter control solenoid valve (T/CON_VFS) is attached to the valve body.
• This variable force solenoid valve indirectly controls the hydraulic pressure inside the torque converter.
- Components Location
1. 28 Brake control solenoid valve (28/B_VFS)2. 4 ...