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Juve1982
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Keyless (kessy) entry problem fixed ! after 5 dollars and 1 hour o
in 9PA, 9PA1 (Cayenne, Cayenne S, Cayenne Turbo, Cayenne Turbo S)
Posted
Hi all
Just wanted to say a Big Thank You! If you want to know why ...
I had issues with my Cayenne Turbo 957 since last December, it all started with a dead battery. I installed a new one and everything worked fine for about one or two days. Then again, battery dead. First I thought the new battery had issues, I recharged it and it was fine for again one or two days. Then I started reading myself through various (German) forums and heard something about this forum and a potential solution. While reading through, I realized that my outdoor sensors were also not working since the problem initially came up (nevertheless the plastic dummy worked to start the engine). So I started doing some measures and realized that after about 15 minutes the current drain jumps from 30 mA to 3-5 A. Obviously something was messing it up, I removed the Kessy unit and checked the MOSFETs as described in this forum. It turned out both MOSFETs had a short circuit. It was not easy to find fitting MOSFETs since westlforidacomponents.com does practically not ship to Switzerland. But I found similar components on Mouser 942-AUIRFZ24NSTRL which I ordered and managed to install today. I gave it a shot and did my very first soldering at all with this task. To be honest, the solder points look very bad and I had big problems desoldering the broken MOSFETs, also I thought I messed up some other components because I mistakenly desoldered them and had to fix it somehow.