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Pinpoint Test K: U0422:86

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information.

    Normal Operation and Fault Conditions 

    REFER to: Interior Camera System - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    CMR U0422:86 Invalid Data Received From Body Control Module: Signal Invalid A continuous memory DTC that sets in the driver status monitor camera module if messages from the BCM through the GWM are invalid.

    Possible Sources 

    • Communication network concern
    • BCM

  2. K1 VERIFY THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE BCM (BODY CONTROL MODULE)

    • Ignition ON.

    • Connect the diagnostic tool.

    • Using a diagnostic scan tool, perform a network test.

    Does the BCM pass the network test? 

    Yes  GO to  K2
    No 
  3. K2 RECHECK THE DRIVER STATUS MONITOR CAMERA MODULE CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

    • Wait 10 seconds.

    • Using a diagnostic scan tool, check the CMR Continuous Memory Diagnostic Trouble Codes (CMDTCs).

    Is DTC U0422:86 retrieved again? 

    Yes  DIAGNOSE any BCM module Diagnostic Trouble Codes (DTCs). REFER to: Body Control Module (BCM) .
    No  The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.