Hyundai Tucson: Ignition System / Troubleshooting
| Trouble symptom | Probable cause | Remedy |
| Engine will not start or is hard to start (Cranks OK) | Ignition lock switch | Inspect ignition lock switch, or replace as required |
| Ignition coil | Inspect ignition coil, or replace as required | |
| Spark plugs | Inspect spark plugs, or replace as required | |
| Ignition wiring disconnected or broken | Repair wiring, or replace as required | |
| Rough idle or stalls | Ignition wiring | Repair wiring, or replace as required |
| Ignition coil | Inspect ignition coil, or replace as required | |
| Engine hesitates/poor acceleration | Spark plugs | Inspect spark plugs, or replace as required |
| Ignition wiring | Repair 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) 2022-2026 Service Manual: Troubleshooting
Diagnosis with Diagnostic tool
1.In the body electrical system, failure can be quickly diagnosed by
using the vehicle diagnostic system (Diagnostic tool).The diagnostic
system (Diagnostic tool) provides the following information.(1)Fault Code Searching : Checking failure and code number (DTC)
...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Description and Operation
- Description and operation
The System may be limited when • The radar sensor or camera is blocked with a foreign object or debris.
• The camera lens is contaminated due to tinted filmed or coated
windshield, damaged glass, or stuck of foreign matter (sticker, bug,
e ...
