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: Lumber Support System
    - Removal 1.Disconnect the negative (-) battery terminal. 2.Remove the front seat back cover.(Refer to Body - "Front Seat Back Cover") 3.Disconnect motor connecotor (A). 4.Remove the front side airbag (A). 5.Remove the lumber support cable bracket after loosening mounting screws. 6.R ...

    Hyundai Tucson (NX4) 2022-2025 Service Manual: Rain Sensor
    - Description Integrated Rain Sensor Integrated rain sensor (A) controls three systems: front wiper, auto-light, and central air conditioner.1.Wiper Control SystemWhen "AUTO" switch signal is received from the multi-function switch on the right, the integrated rain sensor detects the amoun ...

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