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Home >> Ford >> 2021 >> Transit-250 Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation, Message Center And Warning Chimes (2 Of 2) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test Q: The Collision Warning Indicator Is Never Or Always On

Pinpoint Test Q: The Collision Warning Indicator Is Never Or Always On

  1. Normal Operation and Fault Conditions 

    See Collision Warning Indicator. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

    If the forward collision warning indicator request message is missing for less than 5 seconds, the IPC defaults the collision warning indicator to its last state (on or off) based upon the last message received.

    If the forward collision warning indicator request message is missing for 5 seconds or longer, the IPC defaults the collision warning indicator on.

    Possible Sources 

    • Communication concern
    • Forward collision alert system concern
    • IPMA
    • GWM concern
    • IPC

  2. Q1 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) INDICATOR LAMP CONTROL ACTIVE COMMAND USING A DIAGNOSTIC SCAN TOOL

    • Ignition ON.

    • Using a diagnostic scan tool, view the IPC Parameter Identifications (PIDs).

    • Access the IPC and control the W_FWD_COLL PID

    • Command all the warning indicators on then off while observing the forward collision warning indicator.

    Does the forward collision warning indicator turn on when commanded on and turn off when commanded off? 

    Yes  GO to  Q2
    No  Install a new IPC. Refer to Instrument Panel Cluster (IPC) .

  3. Q2 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

    • Ignition ON.

    • Using a diagnostic scan tool, perform the IPC self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to DTC Chart: IPC in Diagnostic Trouble Code (DTC) Chart .
    No  GO to  Q3

  4. Q3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMA (IMAGE PROCESSING MODULE A) SELF-TEST

    • Using a diagnostic scan tool, perform the IPMA self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Lane Keeping System .
    No  GO to  Q4

  5. Q4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Communications Network .
    No  DIAGNOSE the collision alert system. REFER to Collision Warning and Collision Avoidance System .
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