I finally got it started after deleting the egr and installing the wastegate,finding out I have to pull the turbos for a 3rd time because they are leaking between them. anyway what is that code? got the normal SCT U0100,U115,U100,but U2023??? what the hell. and I just sent it to Eric to update to 2.55 from2.5 and I hae a CEL!! won't go away. even did it the old way. disconnected the negs. and tuned everything on in the truck to kill the stored power for the codes... came right back. anybody have any ideas??
DPS0925
ok WTF is U2023?
Yes I know it is a communication code I just can't find out which one, and what for. never had CEL that stayed on.
Its a communication fault either with the IC or RCM. The code can be thrown by either module.
U2023 Fault Received From External Node IC U2023 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to Diagnostic Trouble Code (DTC) Chart in this section for a list of all DTCs.
U2023 Fault Received From External Node RCM U2023 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to Diagnostic Trouble Code (DTC) Chart in this section for a list of all DTCs.
U2023 Fault Received From External Node IC U2023 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to Diagnostic Trouble Code (DTC) Chart in this section for a list of all DTCs.
U2023 Fault Received From External Node RCM U2023 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to Diagnostic Trouble Code (DTC) Chart in this section for a list of all DTCs.
i would run it by eric. You have a module somewhere that has a something that isnt jiving with the other modules......it could be in the tuning maybe. Its tough to say.
no it was returned to stock and I sent it back to them to be redone. today I tuned it to the x-street tune to began setting the waste gate, and this code showed up.
08 6.4 350 SCT live wire S&b intake and straight piped
I had the same 4 codes come up today. I went to grab my wallet out of the truck. Figured while I was there I would start her to warm up. Cranked it over but then my thumb slipped off the key so it stopped just before firing. So I did it again and when I came back to the truck my CEL was on. Tried clearing the codes from my SCT but light is still on even after driving it a few times.
I had the same 4 codes come up today. I went to grab my wallet out of the truck. Figured while I was there I would start her to warm up. Cranked it over but then my thumb slipped off the key so it stopped just before firing. So I did it again and when I came back to the truck my CEL was on. Tried clearing the codes from my SCT but light is still on even after driving it a few times.
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