I keep getting a "lamp" error code on my 2012 R1200R. On startup no error after about a minute up it pops. I've checked all bulbs, taken each one out reinserted and don't see a problem. It does have after market HD headlight bulbs, but I didn't get the code for the first few months of ownership. I was wondering if this could be a battery problem, lo longer able to take a full charge. Just wondering if anyone else has had this problem. Thanks so much.