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PCA Spotlight: Replacing the battery in a first-generation Porsche Cayenne

Tuesday, February 11, 2020

When Executive Director Vu Nguyen's 2006 Porsche Cayenne S threw a code indicating a four-wheel-drive system fault, #2039, there were a couple options at hand. He could try to diagnose a potential fault in the transmission, or he could find out whether the battery was the culprit. We decided to focus on the battery first.

When a first-generation E1 Cayenne throws this AWD system code, experience from others with the same vehicle indicated it might be able to be fixed simply by replacing a dying battery. So instead of looking into the transmission right away, we decided to test the battery, which ended up down on power, and replace it.

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