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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1810 (Transfer Case - Four Wheel Drive (4WD) Systems - F-150 & Mark LT) >> Diagnostic Tests >> Four Wheel Drive (4WD) Systems - Mechanical Shift >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. 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
    • Halfshafts
    • Integrated wheel ends (IWEs)
    • Shift lever and/or linkage
    • Driveshaft and universal joints
    • Vacuum leaks
    • Fluid leaks
    • Matching tire sizes
    • Transfer case
    • Central junction box (CJB) mini fuses:
      • 11 (10A) (IWE vacuum solenoid)
      • 28 (5A)
      • 29 (15A)
      • 30 (15A)
    • CJB fuse 111 (20A)
    • Wiring harness
    • Mode indication switch (MIS)
    • Synchronization clutch
    • Connector(s)
    • IWE vacuum solenoid
    • Circuitry
  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. NOTE: Make sure to use the latest scan tool software release.
  4. If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
    5. NOTE: The vehicle communication module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM.
  5. If the scan tool does not communicate with the VCM:
    • check the VCM connection to the vehicle.
    • check the scan tool connection to the VCM.
  6. If the scan tool does not communicate with the vehicle:
    • verify the ignition key is in the ON position.
  7. Carry out the network test.
    • If the network test passes, retrieve and record continuous memory diagnostic trouble codes (DTCs).
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the four wheel drive (4WD) control module (PCM).
  9. If the DTCs retrieved are related to the concern, go to the Four Wheel Drive (4WD) control module (PCM) Diagnostic Trouble Code (DTC) Chart. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
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