Question to the group and Happy New Year to all. 2006 LR3 192K miles having Transmission fault issues. U0100 code "lost connection to ECM" which I read can be bad battery. Have read about bad batteries and determined, so I thought that in fact my battery was faulty. New battery yesterday all good all faults went away without resetting anything and everything seemed fine drove happy all day. Today out and about, into store came out and all Transmission fault codes came up again car wouldn't turn over. Had a cheap tester said 12+v at battery. disconnected terminals hoping for a "reset" which worked once before. While sitting a nice gentleman asked if I needed a jump which I accepted hoping the extra juice would get me going. Sure enough fired right up and drove home. Checked fuses under hood wondering if any hot while engine off and sure enough F22-F30 all hot with key off and out of ignition. Wondering if this could be draining my battery. Question is what/where is this part of fuse panel fed from and wondering why they are hot all the time. 170 total amps in fuses can't be good. Any help appreciated.......Thank you

 

just a followup on my post....dug deeper and went down the ECU rabbit hole and sure enough looks "hopefully" to be my problem. Not a huge deal getting it out bigger deal paying for it but all the time and money I've put in up to this point it would have been so much cheaper going for this from the get go. attached is my ECU sent out to get reprogramed into a "new" one and as per company all should be fine. Will let all curious members know what happens. Happy New Year.......

 

Did you try cleaning it or are the traces damaged ?

 

Ouch, that is in rough shape.

 

my terrain response and height switch looked like that, some time with some electronics cleaner, a toothbrush and a soldering iron fixed it-but those traces do look rough.

 

The traces bother me less than the IC legs that are corroded. I fix stuff like that all the time. But the legs are usually aluminum and once they corrode, its pretty much game over for that chip.