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.

2011 Hyundai Equus SignatureFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Removal

NOTE: In the case of the vehicle equipped with immobilizer, perform "Key Teaching" procedure together (Refer to TEACHING MODE PROCEDURE DESCRIPTION (STEP BY STEP) ).

Turn ignition switch OFF and disconnect the negative (-) battery cable.
Remove the cover on the ECM.
Disconnect the ECM connector (A) and the TCM connector (B).
Remove the ECM & TCM bracket installation bolts (C) and nut (D).

Fig 1: Identifying ECM Connector, TCM Connector, ECM And TCM Bracket Installation Bolts And Nut
Courtesy of HYUNDAI MOTOR CO.
After removing the installation bolts (A), remove the ECM (B) from the bracket.

Fig 2: Identifying Installation Bolts, ECM And Bracket
Courtesy of HYUNDAI MOTOR CO.

Factory Service Tools

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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.