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Home >> Ford >> 2007 >> Fusion S, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Vehicle Dynamic Systems >> Diagnostic Tests >> Anti-Lock Control >> Inspection and Verification

Inspection and Verification

  1. Verify the customer concern.
  2. Verify the stoplamp operate correctly by pressing and releasing the brake pedal with the ignition switch in the ON position. If the stoplamp do not operate correctly, refer to EXTERIOR LIGHTING . If the stoplamp operate correctly, proceed to the next step.
  3. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Incorrectly inflated tires
    • Mismatched wheels or tires on vehicle
    • Base brake system
    • Wheel speed sensor
    • Wheel speed sensor tone ring
    • Hydraulic control unit (HCU)
    • Battery junction box (BJB) fuse(s):
      • 8 (40A) (for all MKZ and late build Fusion/Milan)
      • 10 (20A)
      • 36 (40A) (for early build Fusion/Milan)
      • 44 (15A) (for early build Fusion/Milan)
      • 49 (15A) (for all MKZ and late build Fusion/Milan)
    • Smart junction box (SJB) fuse:
      • 28 (10A)
    • Circuitry
    • Stoplamp switch
    • Traction control switch
    • Wheel speed sensors
    • Anti-lock brake system (ABS) module
  4. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
    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 communication with the scan tool.
  7. 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 powertrain control module (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 continuous memory diagnostic trouble codes (DTCs).
  9. Clear the continuous DTCs and carry out the self-test diagnostics for the ABS module.
  10. If the DTCs retrieved are related to the concern, go to the Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Chart. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
  11. If no DTCs related to the concern are retrieved, go to Symptom Chart .
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTCs Description Source Action
B1342 ECU is Faulted ABS CLEAR the DTCs. RETRIEVE the DTCs. REPEAT the self-test. If other DTCs are retrieved, ADDRESS those DTCs before addressing DTC B1342. If only DTC B1342 is retrieved, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . REPEAT the self-test.
B1483 Brake Pedal Input Open Circuit ABS Go to Pinpoint Test A .
B1676 Battery Pack Voltage Out of Range ABS Go to Pinpoint Test B .
C1095 ABS Hydraulic Pump Motor Circuit Failure ABS Go to Pinpoint Test E .
C1145 Wheel Speed Sensor RF Input Circuit Failure ABS Go to Pinpoint Test C .
C1155 Wheel Speed Sensor LF Input Circuit Failure ABS Go to Pinpoint Test C .
C1165 Wheel Speed Sensor RR Input Circuit Failure ABS Go to Pinpoint Test C .
C1175 Wheel Speed Sensor LR Input Circuit Failure ABS Go to Pinpoint Test C .
C1233 Wheel Speed LF Signal Fault ABS Go to Pinpoint Test D .
C1234 Wheel Speed RF Signal Fault ABS Go to Pinpoint Test D .
C1235 Wheel Speed RR Signal Fault ABS Go to Pinpoint Test D .
C1236 Wheel Speed LR Signal Fault ABS Go to Pinpoint Test D .
C1805 Mismatched PCM and/or ABS Module ABS CHECK for correct PCM and ABS module configurations using the scan tool. CONFIGURE the component as necessary. FOLLOW the scan tool directions for the ABS module configuration or REFER to the Introduction - Gasoline Engines for the PCM. CLEAR the DTC. REPEAT the self-test.
C1991 Module Configuration Failure ABS CLEAR the DTC. REPEAT the self-test. If DTC C1991 is present, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module .
U1900 CAN communication Bus Fault - Receive Error ABS REFER to MODULE COMMUNICATIONS NETWORK .
U2050 No Application Present ABS Module CONFIGURE the ABS module. REFER to MODULE CONFIGURATION . CLEAR the DTCs. RETRIEVE the DTCs and VERIFY successful module configuration. If DTC U2050 is retrieved again, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . CLEAR the DTC. REPEAT the self-test.
U2051 One or More Calibration Files Missing or Corrupt ABS Module CALIBRATE the ABS module, follow the directions on the scan tool. CLEAR the DTCs. CARRY OUT the ABS module self-test. RETRIEVE and RECORD any DTCs. If DTC U2051 is retrieved again, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . CLEAR the DTC. REPEAT the self-test.

For a complete master list of DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .

INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTC Description Source Action
C1093 Traction Control Disable Switch Circuit Failure Instrument cluster Go to Pinpoint Test I .
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