ac wiring | Lexus IS Forum Aug 17, 2013Make sure that your signal from the AC console is hooked up. It's a blue/white wire(ACMG) that goes to E2 pin 16. Before this wire goes to the ecu it is tapped off to feed the negative trigger for the clutch relay. So it's essential ACMG is hooked up and also tapped to the comp coil. Glad to hear you got all the other inputs back. Lexus Dealer in Alexandria, VA | Used Cars Alexandria Founded in 1963 by C.T. Lindsay, Sr., Lindsay Lexus of Alexandria has a passion for providing you with a world-class ownership experience. We're proud to serve the greater Alexandria area and surrounding cities with our wide array of new Lexus models for purchase and lease, as well as an impressive lineup of quality pre-owned inventory.