You're unable to set the memory for the seats or it got cleared by a battery disconnect? Every time the power is interrupted to the Body ECU, the seat memory is lost. The body ECU plays no direct role in the speed determination, but does meet up with speed in the Combination Meter. Sounds more and more like an internal fault in the Combination Meter. Rare, but certainly possible.

 

FWIW, there is also the possibility of a pin/connector issue. Details here: https://www.supraforums.com/threads/...#post-14005246

 

i can’t set it up at all

 

so most likely i will need a new instrument cluster?

 

That's what it looks like right now. If for no other reason than to test.

 

Curious on the seat memory - is this both passenger and driver?

 

yeap , both don’t work , car has been sitting outside for about 9 months maybe more , when i got inside it felt very moisty , checked everything and no water damage or something like that , car drives excellent and there are no issues beside Display,memory and cruise