Motorola Moto G 3rd Generation Troubleshooting Manual page 160

Step 1 for BT/Wi-Fi Power-On Failure
– Check if the other functionality fails as well, e.g. check WLAN "power
on" if Bluetooth can not be powered on. Check Bluetooth "power on" if
WLAN can not be powered on.
– Both WLAN and Bluetooth share the same IC and most of the circuit,
so if one of the BT/Wi-Fi fails, the other should fail as well. If only one
of them fails, it is highly likely that it is not a hardware problem and it
could just that the BT/Wi-Fi is turned on through the UI already and
the test commands can not turn it on again.
MOTOROLA CONFIDENTIAL
Moto G (3rd Generation)
TROUBLESHOOTING GUIDE