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Help! Changed out alarm siren and now throttle doesn't work?

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I have a 2006 Cayenne S.  I changed out the alarm siren today which necessitated removal of the relay carrier box.  After reinstalling everything and plugging all the connectors and relays back in, the alarm siren worked as advertised.   I started the car and got a check engine light and a PSM warning light in the instrument cluster.  Car idled fine but the engine would not go past idle.  The throttle pedal was completely dead.  I could put the car in drive or reverse and it would just creep along at idle.  I plugged in the durametric and it confirmed that the throttle position angle was "0" no matter what I did with the throttle pedal. I scanned the fault codes with duremetric and this is what came up as shown below.  It seems that somehow something is preventing the throttle from working but it's hard to believe a couple of emission fault codes would make the car undriveable.  I will double check all the connections again tomorrow but everything was plugged in correctly as far as I know.  Does anyone have any ideas what to try next before towing the car to the dealer? Does anyone have an electrical schematic for the items in the relay carrier box?

Evaporative Emission System Leak Detection Pump Control Circuit - No signal/communication, test conditions are not-completed, fault is currently active and causing a DTC light
Evaporative Emission System Vent Control Circuit - No signal/communication, test conditions are not-completed, fault is currently active and causing a DTC light
Edited by pwdrhound
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On the assumption that your battery was disconnected, after reconnecting, there is a learning and adaptation routine, I believe.

Might I suggest you try that if you haven't already.

Disconnect battery for one hour and then reconnect. Turn on ignition for 60 seconds without starting the vehicle. Turn off the ignition but leave the key in the switch for at least 10 seconds. Do not touch the accelerator during this process.

Edited by wizard
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