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1100S CAN Bus errors

3874 Views 5 Replies 4 Participants Last post by  jmbkc
I haven't used my Hyper in a long time. For nearly a year it's been sitting there without anything happening to it. Forgot to hook it up to a battery tender so when I came back the battery was dead. I tried charging it initially but flipped the poles when connecting the charger (dumb). It sparked for a brief moment, but the ignition was off so I don't think I shorted the ECU.

Tried it with the battery charger connected to the bike and it gives me CAN error 5.2 Battery and CAN error 38. I don't hear the fuel pump running, the fuses are all still intact and swapping the ECU out for my 2 other stock ECUs (there's a DP ECU in there right now) does the same.

Is it just a battery issue that I need to fix or is there more going on because I swapped the poles? I do remember that shorting the battery and turning on the ignition can mess something up in the ECU rendering it kind of useless, but all my ECU's give the same error codes.

Also, when turning on the ignition the start-up message is just a bunch of stars instead of the normal text (forgot what it was, something with "race" I think).
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· Registered
1,487 Posts
5.2 is bad battery voltage These bikes do all kinds of strange things
when the battery is bad a garbled display is common when the
battery goes 38 is CAN communication line error. I would start with
a good battery. What happens on the ECU is the ground for
it gets fried you can use a wire to ground it directly most common
cause is people reverse the polarity on the diagnostic cables.
Just do a search there are many threads that cover it but I
would start with a good charged battery 1st.
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