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.
2012 Volkswagen CC (357) L4-2.0L Turbo (CCTA)FACTORY OEM SERVICE PROCEDURE
Engine Control Module: Locations
Control modules in engine compartment
Engine control module -J623-
Component Location:
Below plenum chamber cover center -Arrow-
121-pin, Pin Arrangements:
A - Engine control module -J623-
121-pin, Pin Connector:
B - 81-pin connector -T81-
C - 40-Pin Connector -T40-
Note::
• The 121-pin connector -T121- is made up of a 81-pin connector -T81- and the 40-pin connector -T40- .
154-pin, Pin Arrangements:
A - Engine control module -J623-
154-pin, Pin Connector:
B - 94-pin connector -T94-
C - 60-Pin Connector -T60-
Note::
• The connector -T154- is made up of a 94-pin connector -T94- and a 60-pin connector -T60- .
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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