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Home >> Lincoln >> 2012 >> MKZ Base, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System And Stability Control >> Diagnosis And Testing >> Anti-Lock Control - Hybrid >> Inspection and Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection and Verification

NOTE: If a new ABS module is installed, it must be configured and the multi-calibration completed. Follow the scan tool directions.
  1. Verify the customer concern.
  2. Verify the stoplamps operate correctly by applying and releasing the brake pedal with the ignition switch in the OFF position. If the stoplamps do not operate correctly, refer to EXTERIOR LIGHTING . If the stoplamps operate correctly, proceed to the next step.
  3. Verify the PRNDL operates correctly on the instrument cluster. If the PRNDL does not operate correctly, refer to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . If the PRNDL operates correctly, proceed to the next step.
  4. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Active brake booster
    • Base brake system
    • Brake pedal assembly
    • Electric vacuum pump
    • Hydraulic Control Unit (HCU)
    • Incorrectly inflated tires
    • Mismatched wheels or tires on vehicle
    • Restraints Control Module (RCM) installation
    • Steering components and suspension components
    • Wheel speed sensor ring
    • ABS module
    • Battery Junction Box (BJB) fuse(s):
      • 3 (40A)
      • 7 (40A)
      • 8 (50A)
      • 10 (30A)
      • 37 (5A)
      • 47 (10A)
    • Brake fluid level switch
    • Electric vacuum pump mechanical relay
    • Electric vacuum pump solid state relay
    • PCM relay
    • RCM
    • Stoplamp switch
    • Traction control switch
    • Wheel speed sensor
    • Wiring, terminals or connectors
  5. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
    6. NOTE: Make sure to use the latest scan tool software release.
  6. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
    7. NOTE: The Vehicle Communication Module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM.
  7. 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.
  8. If the scan tool does not communicate with the vehicle:
    • verify the ignition 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.
  9. 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 Continuous Memory Diagnostic Trouble Codes (CMDTCs).
    10. NOTE: The vehicle must be at a complete standstill and on a level surface while carrying out the self-test. Any movement of the vehicle during the self-test may result in false DTCs being set.
  10. Carry out the self-test diagnostics for the ABS module.
  11. If the DTCs retrieved are related to the concern, go to ABS Module DTC Chart  . For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
  12. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .
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