U0100-00 Engine Control Module -ECM-Pcm- Can Signal - Missing Message
The COMMUNICATION DIAGNOSTIC PROCEDURE MUST be performed before replacing any component(s) or module(s). Perform the COMMUNICATION DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION DIAGNOSTIC PROCEDURE or COMMUNICATION DIAGNOSTIC PROCEDURE (EV) .
NOTE:
When performing the COMMUNICATION DIAGNOSTIC PROCEDURE, note that MISSING MESSAGE DTCs are similar to LOST COMMUNICATION DTCs.