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: Components and Components Location
    - Components (1) With Smart Key Connector Pin Information NoConnector AConnector BConnector CConnector D 1Speed_input-ECU groundBlower motor operate_output 2-Rear washer switch_outputpower ground- 3Front washer switch_inputESCL (+)_outputBattery (+) ECU- 4PDW-R power_inputESCL (-)_output ...

    Hyundai Tucson (NX4) 2022-2025 Owner's Manual: How does the Airbag System Operate?
    The SRSCM (Supplemental Restraint System Control Module) continually monitors all SRS components while the ignition switch is ON to determine if a crash impact is severe enough to require airbag deployment or pretensioner seat belt deployment. During a moderate to severe frontal colli ...

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