U1815-00 Lost Communication With Drive Motor Control Module "A"

NOTE:

This DTC indicates a communication issue has occurred between the Sending control module (Motor Control Processor A - MCPA) and the Reporting control module(s) that set this fault.

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 (BEV) or COMMUNICATION DIAGNOSTIC PROCEDURE (3.6L) .