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New Porsche Cayenne 9Y0915105J lithium battery without correct 12V voltage if you measure it by multimeter.
This battery has an activation relay inside. If it is low on power, data will be lost
The activation relay does not work. There is no 12V voltage at the battery terminal.
Follow the pinout about to build connection
At this time, we need to flash the data and charge the battery to about 13.5V
The Freescale programmer chip model in the picture is SPC5644B
For more repair case about Porsche,please refer to:Porsche Cayenne Repair Cases.
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