The wizards who brought us the various GS911 diagnostic tools have now come up with an ingenious solution for attaching accessories to CAN bus-equipped BMWs. Rather than bypassing the tricky CAN bus wiring of the new bikes by wiring accessories direct to the battery, then using various voltage regulators, switches etc., their brand-new invention integrates the most common accessories directly into the CAN bus system in a simple plug and play system.
My GS LC was loaned to Ted Porter of the Beemershop at Das Rally to demonstrate the new GS911 Wi-Fi, and to my surprise they had equipped it with this new pre-production HEX ezCAN. It attracted a crowd of interested folks during the Rally. They left it attached to my bike after the rally so I could attach my own accessories through it.
I removed all the wiring for my Rigid spotlights and red Rigid brake light and plugged the single hot lead from each light into the appropriate color-coded ezCan lead, and connected the black ground to each item. The ezCan had already been connected to the battery for power, and the bikes CAN bus wiring was fed directly into the ezCan, and then a new lead was connected back to the CAN bus controller.
That was it, a five-minute install, then it was a matter of connecting a USB lead from a laptop to the ezCAN to configure it in many ways. My accessory lights are all controlled directly from the bike controls, extending the use of the left thumbwheel, turn signal and high beam switches to perform some magic on the bike. This includes options to strobe the spot lights, dim them when the respective turn signal is activated so that it does not disappear in the blinding spot beam, dim the lights for bright daylight and brighten them as conditions warrant using the bikes ambient light sensor, strobe the lights when about to pass, or when the horn is depressed. There are also four settings for brake light functionality. In addition, there is a high power horn outlet and a charging output for iPhones, cameras etc. that are connected into your wired tank bag.
This is a simple and cost-effective way to integrate all your accessories into the mysterious CAN bus world. It will be available this fall wherever you buy your GS911. Although the first model is specific for the GS LC, specific versions will be made available soon for other BMW models.
For more info, see the website at hexezcan.com, and watch this video.
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