2005 crossfire Roadster after running scan with topdon topscan pro got a lot of dtcs in 7 modules(ECM, TCM, SLA,PTCM, SKM,TPM,IC).
Wrote them all down and and cleared all DTCs. Everything is gone on retest except CODE 3FFF-0000 IN 3 MODULES SLA, SKM AND IC. Please advise.