HC-05 stops working when connected to Rx Tx pins of Nano

I have a Bluetooth module HC-05, I'm trying to make a car controlled through phone and its bluetooth. To test if HC05 is working fine or not I shorted the Rx and Tx pins and used a bluetooth terminal on phone. While doing this the the module works fine. Now when i connect them to the rx tx pins of nano, HC05 stops blinking and it disconnects from the phone. I've tried all options like first pairing then connecting wires, first connecting wires then pairing. The bluetooth module doesn't work. It will be great if any of you provide me with a solution. Thank you!

HC05 stops blinking .......... The bluetooth module doesn't work.

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