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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 614 (Lane Keeping System) >> Diagnosis And Testing >> Lane Keeping System >> Pinpoint Tests >> Pinpoint Test W: U0404:86

Pinpoint Test W: U0404:86

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. Normal Operation and Fault Conditions 

    REFER to: Lane Keeping System - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    IPMA U0404:86 Invalid Data Received from Gear Shift Control Module A: Signal Invalid This continuous memory DTC can set in IPMA through GWM due to a fault in the GSM or an invalid input from the GSM.

    Possible Sources 

    • GSM
    • GWM
    • IPMA

  2. W1 CHECK FOR GSM SIGNAL

    • Ignition ON.

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

    Is DTC U0404:86 still present? 

    Yes  RETRIEVE and FOLLOW non-network Diagnostic Trouble Codes (DTCs) from the GSM. REFER to: External Controls - Vehicles With: Column Shift . REFER to: External Controls - Vehicles With: Console Shift . REFER to: External Controls - Vehicles With: Column Shift . REFER to: External Controls - Vehicles With: Console Shift .
    No  DIAGNOSE the observable symptom.
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