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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2638 (Anti-Theft - Passive Anti-Theft System (Pats) -- F250-F550 Super Duty) >> Diagnosis And Testing >> Anti-Theft >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Large metallic objects or electronic devices on the key ring that can be used to purchase gasoline or similar items
    • PATS  key
    • Use of a non- PATS  key or incorrect PATS  key
    • More than one PATS  key on key ring
    • Aftermarket remote start system installed
    • Body Control Module (BCM) fuse 18 (10A)
    • Wiring, terminals or connectors
    • BCM 
    • PCM
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
    NOTE: Make sure to use the latest scan tool software release.
  5. If the scan tool does not communicate with the VCM  :
    NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC  are provided to the VCM  .
    • check the VCM  connection to the vehicle.
    • check the scan tool connection to the VCM  .
    • refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
  6. If the scan tool does not communicate with the vehicle:
    • verify the ignition key is in the ON position.
    • verify the scan tool operation with a known good vehicle.
    • refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the PCM.
  7. Carry out the network test.
    • If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
    • If the network test passes, retrieve and record the continuous memory DTCs.
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the BCM  and PCM.
  9. If the DTCs retrieved are related to the concern, go to the BCM DTC CHART  or the PCM DTC CHART . For all other BCM  DTCs, refer to MULTIFUNCTION ELECTRONIC MODULE . For all other PCM DTCs, refer to ELECTRONIC ENGINE CONTROLS - GASOLINE ENGINES or ELECTRONIC ENGINE CONTROLS - DIESEL ENGINE .
  10. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .
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