S300 not being detected via USB

[Andrew]

Hi there, my S300 is no longer being detected on my laptop, not either being detected as a new USB device.

It is in a standalone race car which has no factory wiring remaining how ever I put a wiring loom in and have had it connected, powered up, registered and datalogging.

I had tried to connect a rear wheel speed sensor and had the signal wire connected to VSS B10 (YEL/BLK)

I wired it up how via this http://www.xenocron.com/downloads/RaceS ... Sensor.pdf and when using a volt meter on a spare battery I could not get the output wire (BLK) to output ANY voltage - so I'm not sure what has gone wrong.

Could this have damaged the ECU?

I also at one point lost my balance and ended up falling onto the ECU itself, I can't imagine it would have flexed enough to damage anything but thought I would make note of it.

Are there any tests I can do to show if the ECU has been damaged? All voltage inputs on the wiring loom side are working as per normal

I had updated to 2.2.8 and thought that may have caused an issue with USB drivers so went back to 2.2.7 and still no dice

Thanks

[Spunkster]

What does it show up as in the Windows device manager when you have the key on and plug in the USB?

[Andrew]

Nothing, not even the 'bing bong' sound to show a usb device has been connected.

[Andrew]

Laptop still detects other usb devices.

Are there anything I can do to diagnose a damaged ecu?

[Spunkster]

Do any lights come on inside the ECU on the s300 board when the key is turned to the on position?

[Andrew]

No lights on the S300 when turned on.

I might put it in my EJ1 to rule out any of my wiring issues

[Andrew]

Well I guess I broke a wire somewhere, it works in my EJ1 :)

thanks for your help and sorry for wasting your time!