What is this switch for?

[gaoo]

Hi All,

Can someone please tell me what this switch is for? (see photo) It's next to the data port under steering wheel.

2005 Cayenne S, ROW

Many thanks.

gaoo

[bigbuzuki]

No switch there normally. Looks like someone's mod. Radar jammer maybe?

[j3w]

Hi All,

Can someone please tell me what this switch is for? (see photo) It's next to the data port under steering wheel.

2005 Cayenne S, ROW

Many thanks.

gaoo

Looks a LOT like the switch to an iSimple FM modulator.

[wvicary]

Not a factory switch.... follow it to it's source.

[gaoo]

Thanks.

Anything to do with Mobridge ipod system? That's the only after-market installation I knew.

gaoo

[hahnmgh63]

That's what it is. The Mobridge system defeat switch. You have to cycle it in order to bypass the Mobridge system for the Porsche PIWIS system to work, otherwise it blocks the MOST bridge and the Porsche scantool doesn't work.

They bypass switch is provided to allow for the mObridge unit

to become 'Invisible' on the MOST vehicle bus system. The

main use of this function is to facilitate dealer services when

the diagnostic computer is in use and to ensure the mObridge

unit does not interfere with the vehicle diagnostics.

The function can be enabled to toggling this switch 5

times. Once the bypass feature has been activated, the

MOST bus will be broken for 2 seconds and the feature

cannot be activated again for a further 10 seconds.

Once the bypass switch has been activated, it will remain

activated across power cycles until the bypass is de-activated by

toggling the switch again 5 times within a 5 sec time frame.

[gaoo]

Thanks for the explanation.

I may need to go through your explanation several times more in order to fully understand. ;-)

I just purchased a Durametric Diagnose Tool and havnt tried on the Cayenne yet. So I need to toggle the switch 5 times within 5 sec to bypass the mObridge to enable Durametric, and once done, to toggle the switch 5 times again to return normal mObridge operations, correct?

Not sure about 'Once the bypass feature has been activated, the MOST bus will be broken for 2 seconds and the feature cannot be activated again for a further 10 seconds.' Please explain?

Thanks, gaoo

[gaoo]

Got it.

Thanks to all for your help!

[hahnmgh63]

That little excerpt I posted is directly out of the Mobridge manual which you can find and download in PDF format from their website. And yes, the instructions they give are a little confusing. If you screw it up it just means it won't work right and you just try it again until it does.

http://www.mobridge.us/compatibility/vehicles/19/13152/13153

Edited July 21, 2011 by hahnmgh63