Corghi Cal One-Touch Manuel D'utilisation page 21

After correctly selecting a car, the following
message is displayed: "The Bluetooth Module
does not respond".
Check the LED on the Bluetooth modules is
switched on. If the LEDs of the two modules are
switched on, disconnect both modules then wait
a few seconds before reconnecting them. Try
again to use the software.
EN
Operator's manual Cal One-Touch 21