 All IndyCar Series cars carry a McLaren-provided engine management (Electronic Control Unit) since 2007 as a second supplier until 2009 and later increased as single ECU supplier since 2010 until present (the TAG-400i was first time utilized since 2012 season).Live telemetry is used only for television broadcasts, but the data can be recorded from the ECU to the computer if the car is in the garage tents and not on the track.Previously Motorola supplied IndyCar Series ECU in 2003–2009 for Honda-powered cars, also Denso supplied IndyCar Series ECU in 2003–2005 for Toyota-powered cars and also Zytek supplied IndyCar Series ECU in 2002–2005 for Chevrolet-powered cars.