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Home >> Ford >> 2007 >> Crown Victoria Police Interceptor >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnostic Tests >> Anti-Lock Control >> Inspection and Verification
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Inspection and Verification

WARNING: Before servicing a vehicle equipped with a fire suppression system, depower the system by following the procedure in FIRE SUPPRESSION SYSTEM article. Failure to follow the instructions may result in serious personal injury.
  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 Diagnosis and Testing in EXTERIOR LIGHTING article. If the stoplamps operate correctly, proceed to the next step.
  3. Visually inspect for obvious signs of mechanical and electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Base brake system
    • Incorrectly inflated tires
    • Mismatched wheels or tires
    • Hydraulic control unit (HCU)
    • Battery junction box (BJB) fuse(s):
      • 14 (20A)
      • 106 (40A)
      • 109 (20A)
    • Central junction box (CJB) fuse(s):
      • 13 (10A)
      • 28 (7.5A)
    • Wiring, terminals or connectors
    • Front wheel speed sensor jumper harness
    • Wheel speed sensor
    • Stoplamp switch
    • ABS module
    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.
    • refer to MODULE COMMUNICATIONS NETWORK article, No Power To The Scan Tool, to diagnose no communication with 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 article 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 article to diagnose the no communication concern.
    • If the network test passes, retrieve and record continuous memory DTCs.
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the ABS module.
  9. If the DTCs retrieved are related to the concern, go to the ABS MODULE DTC CHART . For all other DTCs, refer to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
ABS MODULE DTC CHART

DTC Description Source Action
B1342 Electronic Control Unit (ECU) is Defective ABS Module INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module .
B1484 Brake Pedal Input Open Circuit ABS Module Go to Pinpoint Test D .
B1596 Service Continuous Codes ABS Module
NOTE: If other DTCs are present, REPAIR them before installing a new component.
TURN the ignition switch to the OFF position and wait at least 30 seconds. TURN the ignition switch to the ON position. REPEAT the ABS self-test. If any DTCs are retrieved, REFER to the ABS MODULE DTC CHART . If no DTCs are retrieved, CARRY OUT a drive test above 15 km/h (9 mph), then REFER to the Symptom Chart.
B1676 Battery Voltage Out of Range ABS Module Go to Pinpoint Test E .
C1145 Speed Wheel Sensor RF Input Circuit Failure ABS Module Go to Pinpoint Test B .
C1155 Speed Wheel Sensor LF Input Circuit Failure ABS Module Go to Pinpoint Test B .
C1165 Speed Wheel Sensor RR Input Circuit Failure ABS Module Go to Pinpoint Test B .
C1175 Speed Wheel Sensor LR Input Circuit Failure ABS Module Go to Pinpoint Test B .
C1222 Speed Wheel Mismatch ABS Module MAKE SURE the tires are the same size and correctly inflated. INSPECT the wheel speed sensor rings. CLEAR the DTC. TEST drive the vehicle. REPEAT the self-test.
C1266 ABS Valve Power Relay Circuit Failure ABS Module Go to Pinpoint Test H .
C1296 Wheel Speed LF Signal Fault ABS Module Go to Pinpoint Test C .
C1297 Wheel Speed RF Signal Fault ABS Module Go to Pinpoint Test C .
C1298 Wheel Speed RR Signal Fault ABS Module Go to Pinpoint Test C .
C1299 Wheel Speed LR Signal Fault ABS Module Go to Pinpoint Test C .
C1300 ABS Hydraulic Pump Motor Circuit Failure ABS Module Go to Pinpoint Test A .
C1805 Mismatched PCM and ABS Modules Do Not Match ABS Module CHECK the part numbers. INSTALL the correct module.
C2775 TC ON/OFF Switch Stuck Failure ABS Module Go to Pinpoint Test G .
U0073 Control Module Communication Bus Off CAN Bus REFER to MODULE COMMUNICATIONS NETWORK article.
U1900 CAN Communication Bus Fault - Receive Error CAN Bus REFER to MODULE COMMUNICATIONS NETWORK article.
U2023 Fault Received From External Node CAN Bus REFER to MODULE COMMUNICATIONS NETWORK article.
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