Fellas,

how does one go about testing these PDC Sensors.

i was in a front end collision few months ago. i ended replacing the front bumper and PDC sensors on the passenger side. But every time i turn the PDC on or put the car in reverse, i hear a 3 sec beep sound and PDC light flashing. The sensors aren't working

Can i test the sensors or connection with a multimeter?

Help!
Thanks...