Contents:
1.Disconnect the ignition switch connector (B) and key warning switch connector (A) from under the steering column.

2.Check for continuity between the terminals.
3.If continuity is not specified, replace the switch.

1.Disconnect the negative (-) battery terminal.
2.Remove the crash pad lower panel.(Refer to Body - "Crash Pad Lower Panel")
3.Remove the steering column upper and lower shrouds.(Refer to Body - "Steering Column Shroud Panel")
4.Disconnect the key warning/immobilizer connector (A).

5.Insert key and turn it to ACC position.
6.Pushing lock pin (A) with the awl.

7.Remove the immobilizer coil antenna (A) after loosening the mounting screw.

1.Install the key lock cylinder.
2.Install the key warning and immobilizer connector.
3.Install the ignition switch.
4.Install the steering column shrouds and crash pad lower panel.
Hyundai Accent (HC) (2017 - 2022) Service Manual: Cylinder Head
- Removal • Use Fender cover to avoid damaging painted surfaces. • To avoid damaging the cylinder head, wait until the engine coolant temperature drops below normal temperature before removing it. • When handling a metal gasket, take care not to fold the gasket or damage the contact surface of the gasket. • To avoid damage, unplug the wiring connectors carefully while holding the connector portion.Hyundai Accent (HC) (2017 - 2022) Service Manual: Specifications
- Specifications DescriptionSpecificationsLimit General TypeIn-line, DOHC   Number of cylinders4   Bore75.60 mm (2.9764 in)   Stroke89.0 mm (3.5039 in.)  Total displacement1,598 cc (97.52 cu.in)  Compression ratio11.2 ± 0.2 : 1  Firing order1-3-4-2   Valve timing Intake valveOpensBTDC 42° - ATDC 38°   ClosesABDC 7° - ABDC 87°   Exhaust valveOpensBBDC 43° - ABDC 2°   ClosesATDC 0° - ATDC 45°   Cylinder head Flatness of gasket surfaceLess than 0.