Infotainment Master Controller (IMC) and battery disconnection

R

RONWOOD

New member
F Type S 2014. Disconnected and reconnected battery to get rid of false low battery warning then found that Phone link, Radio/CD player and Sat Nav no longer working. Checked relevant fuses in boot, all OK. Forum information suggests that these functions are all linked to the IMC (Infotainment Master Controller). Anyone know about this controller, it's location, in line fuse or relay? By not working I mean all three functions shown on home screen but media greyed out, phone won't link and CD player has no power. Also if this is a result of completely powering down the system it may act as a warning to others.
 
Is the battery fully charged? Always the first thing to eliminate before you go down the diagnosis rabbit hole.
 
Update. After 2 months with no infotainment modules working they all suddenly re-appeared after starting the car on a very hot day (34 centigrade) last week. I have no explanation just pleased to have saved garage fees trying to track down the problem which sounds like a poor electrical connection made good by the heat.
 
Well worth checking the main earth in the front right (UK drivers side) wheel arch. A few reports on here that the cable becomes corroded/loose which causes all sorts of electrical gremlins.
 
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