U1701-00: Engine1 (From Engine Control Module) Missing Message
NOTE:
The Scan Tool may display the description name of this Diagnostic Trouble Code differently with the following below:
| U1701-00-ENGINE1 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 .