The reason for the relay is voltage drop in the starter circuit. Because of the usually long length of cable from the starter to the control panel the voltage drop in the cable can be enough to prevent the solenoid from engaging fully. The result is a click and nothing else when you press the starter.
The Flash Interview: Danielle Panabaker On Why Killer Frost is Fascinated By Barry's Body. Danielle Panabaker, who plays Caitlin Snow in The Flash, has a new interview up on The CW's social media channel, explaining just why she's so interested in The Flash's body. The scientist in Caitlin is excited to know everything that's going on in Barry's body, Panabaker said. Sheâs smart. Sheâs beautiful.
See more 'Supergirl' Melissa Benoist Revealed in First CBS Photos. Weissman, who played the young April (Megan Fox) in TMNT, will guest-star in the pilot as a young version of Kara, confirming speculation that the potential series will flash back to the DC heroine's early years as a child.