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.
Comfort System Central Control Module -J393
General Information
The Comfort System Central Control Module performs the following tasks in the vehicle:
- Sunroof control (issues enabling)
- Window regulator control (issues enabling)
- Central locking system control
- Anti-theft warning system control
- Radio receiver
- Rear lid closing
- Comfort operation
Some of the functions listed above can be adapted. Refer to THROUGH MY 09, ADAPTING COMPONENTS .
Additional information:
- Refer to the Owner's Manual.
- Refer to appropriate SYSTEM WIRING DIAGRAMS.
DTC Recognition and Display
The comfort system central control module is equipped with OBD.
Use the Vehicle diagnostic tester under "Guided Fault Finding".
Comfort System Central Control Module -J393-, removing and installing, refer to COMFORT SYSTEM CENTRAL CONTROL MODULE -J393- .
Replace and code the comfort system central control module - J393- (through MY 2009), refer to REPLACING AND CODING, THROUGH MY 09 .
Adapt the components for the comfort system central control module -J393-, through MY 2009, refer to ADAPTING COMPONENTS, THROUGH MY 09
Comfort system central control module -J393- Output Diagnostic Test, through MY 2009, refer to OUTPUT DIAGNOSTIC TEST, THROUGH MY 09
Check the anti-theft alarm system alarm sources, through MY 2009, refer to ANTI-THEFT ALARM SYSTEM ALARM SOURCES, THROUGH MY 2009, CHECKING
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.