Infotainment Relay

Infotainment Relay

An infotainment relay is located in the rear fusebox. The relay receives a permanent power supply from fusible link 8 in the passenger compartment fusebox. The relay coil is controlled by the IHU which provides a ground for the coil. When a vehicle unlocked signal is transmitted on the CAN (controller area network), the message is received by the IHU which provides a ground for the relay, closing the contacts and supplying power to the audio/infotainment system components. The IHU maintains the relay in an energized condition for a period of time after the ignition is switched off to allow time for the navigation computer to 'power down' and also to allow a faster system start-up if the system is required subsequently.