P1000 - DTC
Readiness not complete
Wouldn't worry about this one. Assuming this was shown because you just loaded a tune and it hadn't had time to run through the tests.
U0101 - Lost communication with Transmission Control Module
U0155 - Lost communication with Instrument Cluster
If the instrument cluster loses communication with the TBC and ABS
module, it's plausible that it would display a TBC fault and ABS
P115A - Low Fuel Level - Forced Reduced Power
If the PCM
thinks the fuel level is extremely low it will greatly reduce the ICP
to protect the engine. This is most likely the " Limp Mode " you experienced.
Since the PCM
gets the reading from the Instrument cluster, I'd say this is related to your communication problem above.
I would carefully check your recent wiring changes. Are you sure you wired everything correctly? Did you accidentally tie something into the CAN Communication Network?
Keep in mind that most modules on this truck are tied together via the network. If you have something taking down the network that also means your PCM
has no communication to the FICM
, Trans, ABS
, etc. This would keep you from starting.