2007 T600 Central Instrument Cluster went out

I have a 2007 KW T600 central instrument cluster completely out! No rpms no engine hrs no mileage no outside temperature no lighting not sure if speedometer works haven’t taken it for a ride. All fuses and relays are good including Acc feed. All other gauges work fine and have lights. Could it just be the central instrument cluster or CECU?

 

Dang!$$$
So it can’t be replaced with a used CECU?

 

Got it fixed finally. I got lucky enough that a friend of mine referred me to an electrician that had a new ICU “CECU” and a new central instrument cluster which he used to test them on my truck. He installed both new parts on my truck and everything worked fine. He then switched out the new ICU with mine and new cluster worked fine. Then reconnected my cluster and nothing worked on it that’s how we knew it was a bad cluster. He charged me $60 and I picked up a used 2007 cluster from a used parts dealer for $200! Ready to get back on the road! Thanks!

 

New cluster was over $1,000 and ICU $2,125 at French Ellison Kenworth dealer. I got lucky and saved Mucho $$$$!