Those who have been getting the B115E DTC Code. I went to the dealer tech and asked if they knew what it was. Hew said it can be possible loose wire connection. Which may be the cause of the code. He said, that could be the cause to the warning light malfunction which may in turn cause the code. If you have the workshop Manuel you can find the wire diagram to trace all the connections. He said the may fix the problem unless it is a bad module.