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Porsche TSB #122-J4H9M-12
2013 Porsche Cayenne
TSB Document:
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- Summary
- Situation: Cayenne Diesel vehicles were equipped with undisclosed Auxiliary Emission Control Devices which are not permitted by emissions regulations. Action Required: Install updated engine control module (DME) software, transmission control module (Tiptronic) software and hardware to bring affected vehicles into regulatory compliance.
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