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Home >> Lincoln >> 2012 >> MKS Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System >> Diagnosis And Testing >> Cruise Control >> Inspection and Verification

Inspection and Verification

  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Front bumper cover
    • Battery Junction Box (BJB) fuse(s):
      • 13 (15A) (with adaptive cruise control)
      • 46 (15A)
    • Brake lamp relay (with adaptive cruise control, located in the BJB)
    • Wiring, terminals or connectors
    • Cruise control deactivator switch
    • Cruise control switch
    • PCM
    • ABS module (with adaptive cruise control)
  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. Inspect for a damaged Cruise-Control Module (C-CM) bracket, bumper beam, foam or front bumper cover. Repair all damaged components first. After the damage is repaired, carry out the vertical alignment procedure. Refer to Cruise Control Module (C-CM) (with Sensor) Adjustment . If the C-CM bracket is damaged, refer to Cruise-Control Module (C-CM)  to replace the bracket.
    5. NOTE: Make sure to use the latest scan tool software release.
  5. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
    6. NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
  6. 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.
    • Refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
  7. If the scan tool does not communicate with the vehicle:
    • Verify the ignition in ON.
    • Verify the scan tool operation with a known good vehicle.
    • Refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the C-CM or the PCM.
  8. 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.
  9. Clear the continuous DTCs and carry out the self-test diagnostics for the C-CM (if equipped), Head Up Display (HUD) module (if equipped), PCM, and the ABS module.
  10. If the DTCs retrieved are related to the concern, go to DTC Charts . For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULES .
  11. If no DTCs related to the concern are retrieved, GO to Symptom Chart .
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