Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Ignition System / Troubleshooting

- Troubleshooting

Trouble symptomProbable causeRemedy
Engine will not start or is hard to
start (Cranks OK)
Ignition lock switchInspect ignition lock switch, or replace as required
Ignition coilInspect ignition coil, or replace as required
Spark plugsInspect spark plugs, or replace as required
Ignition wiring disconnected or brokenRepair wiring, or replace as required
Rough idle or stallsIgnition wiringRepair wiring, or replace as required
Ignition coilInspect ignition coil, or replace as required
Engine hesitates/poor accelerationSpark plugsInspect spark plugs, or replace as required
Ignition wiringRepair wiring, or replace as required

    Description and Operation
    - Description The ignition coil is a kind of small transformer that transforms the battery voltage to 30 kV or more to create a spark in the spark plug gap in the cylinder.The igniter embedded ...

    Schematic Diagrams
    - Schematic Diagrams ...

    Other information:

    Hyundai Tucson (NX4) 2022-2025 Service Manual: Relay Box (Passenger Compartment)
    - Dscription and Operation ICU (Integrated Central Control Unit) ICU (Integrated Central Control Unit) is an integrated model of smart junction block and central gateway. It performs the function of conventional "Smart junction block" and the function of communication medium of "Central Ga ...

    Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Rear Cross-Traffic Collision- Avoidance Assist Settings
    Rear Cross-Traffic Safety With the ignition switch ON, go to User Settings > Driver Assistance > Parking Safety > Rear Cross-Traffic Safety (for cluster type) or Setup > Vehicle > Driver Assistance > Parking Safety > Rear Cross-Traffic Safety (for infotainment sys ...

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