Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2021 Hyundai Elantra N Line, Automatic DCT TransFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Removal

Turn ignition switch OFF and disconnect the battery negative (-) terminal.
Disconnect the ECM Connector (A).

Courtesy of HYUNDAI MOTOR AMERICA
Remove the ECM (B) after releasing the fixing hooks (A).

Courtesy of HYUNDAI MOTOR AMERICA
Remove the ECM (B) after loosening the mounting bolts (A).
ECM Mounting bolt:

6.7 - 8.3 N.m (0.7 - 0.85 kgf.m, 5.1 - 6.1 lb-ft)

Courtesy of HYUNDAI MOTOR AMERICA

Chapter Navigation

Return to Chapter: Repair Procedures

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.