Are you getting any information from OBDII?
On mine I had another OBDII device hardwired in to had to configure the OBDII setting on the Maestro. Default (Auto) it will disable when it senses another device. If you leave something plugged in all the time this won't work, and you'll have to change the setting to Enabled, forcing it to receive data simultaneously with the other device.
I do get some info. On the same screen as the TPMS one, If my doors are open it shows that. I do get gauge info as well. RPM, Speed, coolant temp, etc. Just TPMS is not working for me.
I confirmed the SIL wire is connected.