DTC U0422 Invalid Data Received from Body Control Module: Action

CARRY OUT a self-test of the BCM. If the diagnostic scan tool indicates the module is not responding, REFER to appropriate Module Communications Network article to diagnose the network communication concern. If BCM DTCs are present, REFER to appropriate Multifunction Electronic Modules article to diagnose the BCM system fault. If there are no DTCs in the BCM, SET the ignition to OFF.

DISCONNECT and INSPECT all BCM electrical connectors and related inline connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary.