• 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.Remove the engine room under cover.(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")
2.Remove the drive belt.(Refer to Drive Belt System - "Drive Belt")
3.Remove the drive belt tensioner (A).
Tightening torque :53.9 - 63.7 N.m (5.5 - 6.5 kgf.m, 39.7 - 47.0 lb-ft)

4.Install in the reverse order of removal.
1.Remove the engine room under cover.(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")
2.Remove the drive belt tensioner.
3.Remove the alternator.(Refer to Engine Electrical System - "Alternator")
4.Remove the tensioner bracket (A).
Tightening torque :39.2 - 44.1 N.m (4.0 - 4.5 kgf.m, 28.9 - 32.5 Ib.ft)

5.Install in the reverse order of removal.
1.Check the belt tensioner for excessive dust, crack, and damage. Replace if necessary
2.Check for vibration during rotation, foreign matter adhered to v-groove on pulley, eccentric contact of v-groove and replace parts if necessary.
Drive Belt
Crankshaft Damper PulleyHyundai Tucson (NX4) 2022-2025 Service Manual: Schematic Diagrams
- Schematic Diagrams
Harness Connector
CONNECTOR NAMEPIN NUMBERNAMEFUNCTION
BATTERY1B +BATTERY +
2GNDBATTERY -
TORQUE1TORQUE2TORQUE1_SUB
&2ANGLE2PWM2
ANGLE3TORQUE4TORQUE2_SUB
SENSOR4POWER2SENSOR POWER2
5TORQUE3TORQUE2_MAIN
6POWER1SENSOR POWER1
7GND1GND1
8TORQUE1TORQUE1_MAIN
...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Troubleshooting
- Troubleshooting
SymptomPossible causeRemedy
One lamp does not light(all exterior)Bulb burned outReplace bulb
Socket, wiring or ground faultyRepair if necessary
Head lamps do not lightBulb burned outReplace bulb
Ignition fuse (LOW:10A, HIGH:20A) blownCheck for short and replace fuse
Head la ...