From the link you posted:
"PID Number
Use this value to set the number of the PID that is sent with the request. This value can be one or more bytes in hexadecimal format. For mode 01 PIDs, this value should be a single byte (e.g. 04). For mode 22 PIDs, this value is typically two bytes (e.g. 0200)."
You are trying to use a 2 byte address (111F) so you'll need to use mode 22 instead of mode 01 similar to my post here:
https://projectbytes.wordpress.com/2014/06/29/nissan-370z-custom-pids/
Hopefully that'll fix it.