DTC U0405: Invalid Data Received From Cruise Control Module

WARNING: This page is about a different car, the 2020 Lincoln Continental, 2019 Lincoln Continental, and 2018 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.

Failure	Action
41	This DTC sets if the collision mitigation by braking deceleration message checksum is invalid. Using a diagnostic scan tool, RETRIEVE and DIAGNOSE all CCM module DTCs. REFER to Diagnosis and Testing in the appropriate Anti-Theft System article. If no CCM DTCs are present, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PCM and GWM electrical connectors and related in-line connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary.
82	This DTC sets if the collision mitigation by braking deceleration message count is out of range. Using a diagnostic scan tool, RETRIEVE and DIAGNOSE all CCM module DTCs. REFER to Diagnosis and Testing in the appropriate Anti-Theft System article. If no CCM DTCs are present, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PCM and GWM electrical connectors and related in-line connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary.
86	This DTC sets if the CCM is requesting an external apply of the electric parking brake and the vehicle is not in static mode. Using a diagnostic scan tool, RETRIEVE and DIAGNOSE all CCM module DTCs. REFER to Diagnosis and Testing in the appropriate Anti-Theft System article. If no CCM DTCs are present, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PCM and GWM electrical connectors and related in-line connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary.