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Steering wheel switches not working

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My 2005 Cayenne Turbo has recently developed a fault whereby the switches on the steering wheel dont work, this is just the tiptronic switches and radio control switches. I cant work out which fuse is specifically the one for these switches, but I have checked them all and none are blown. Before I start removing the airbag and pulling the wheel apart I thought I would check the knowledge base and see if there are any answers here. I am sure its coincidental, but the fuel filler door release has also stopped working, I suspect that is just an actuator failed. 

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  • 3 months later...

I am back to trying to isolate the cause of the steering wheel switches not working, I have removed the airbag with the switches attached and checked the cabling, everything looks fine but no entertainment centre or tiptronic switches on the steering wheel working. I have obviously also checked the fuses, but from the Driver's manual there is no fuse specifically designated "steering wheel switches" so it would be nice to isolate which fuse it is.

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