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.

2004 Hyundai XG350 BaseFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component	Location
ABS Control Module	Right rear of engine compartment. See Figure.
A/C Control Module	In center of dash. See Figure.
Assister Door Module	Integral with power window/door switch assembly, on right front door. See Figure.
Driver Door Module	Integral with power window/door switch assembly, on left front door. See Figure.
DRL Control Module	On right front of engine compartment, near engine mount. See Figure.
Electronic Power Steering Module	Behind center of dash, on support bracket. See Figure.
ETACM	On rear of passenger compartment junction block, behind left end of dash. See Figure.
ETS Control Module	Behind center of dash, on support bracket. See Figure.
Immobilizer Control Module	Left center of dash. See Figure.
IMS Control Module	Under left front seat. See Figure.
PCM (C44-1, C44-2, C44-3, C44-4)	Behind lower center of dash. See Figure.
SRS Control Module	Below center console. See Figure.

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.