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HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 550 (ANTI-LOCK BRAKE SYSTEM)DIAGNOSIS AND TESTINGANTI-LOCK CONTROLINSPECTION AND VERIFICATION
2010 Mercury Mariner Hybrid, AWD

Inspection and Verification

2010 Mercury Mariner Hybrid, AWDSECTION Inspection and Verification
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Verify the stoplamps operate correctly by pressing and releasing the brake pedal with the ignition switch in the ON position. If the stoplamps do not operate correctly, refer to STOPLAMPS . If the stoplamps operate correctly, proceed to the next step.
  3. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION TABLE

    Mechanical Electrical
    • Incorrectly inflated tires
    • Mismatched wheels or tires on vehicle
    • Base brake system
    • Wheel speed sensor
    • Hydraulic control unit (HCU)
    • Battery junction box (BJB) fuse(s):
      • 9 (40A)
      • 12 (20A)
    • Smart junction box (SJB) fuse 19 (10A)
    • Circuitry
    • Stoplamp switch
    • Traction control switch
    • Wheel speed sensors
    • Anti-lock brake system (ABS) module
  4. If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
    • check that the program card is correctly installed.
    • check the connections to the vehicle.
    • check the ignition switch position.
  5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
  6. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
  7. If the DTCs retrieved are related to the concern, go to the ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
  8. If no DTCs related to the concern are retrieved, GO to SYMPTOM TABLE .
ANTI-LOCK BRAKE SYSTEM MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTCS Source Description Action
B1342 ABS ECU Is Faulted CLEAR the DTCs. RETRIEVE the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . REPEAT the self-test.
B1484 ABS Brake Pedal Input Open Circuit GO to PINPOINT TEST B .
B1596 ABS Service Continuous Codes
NOTE: If other DTCs are present, REPAIR them before installing a new component.
CLEAR the DTCs.CYCLE the ignition switch.RETRIEVE the DTCs.If only DTC B1596 is present, INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . REPEAT the self-test.
B1676 ABS Battery Pack Voltage Out of Range GO to PINPOINT TEST C .
B2477 ABS Module Configuration Failure CONFIGURE the ABS module using As Built Data and correct tire size. REFER to AS-BUILT DATA CENTER . CLEAR the DTCs. RETRIEVE the DTCs, and verify successful module configuration. If DTC B2477 is retrieved again, INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . REPEAT the self-test.
B2900 ABS VIN Mismatched VERIFY the VIN data, the ABS module, and the PCM have the correct as-built data.
C1145 ABS Speed Wheel Sensor RF Input Circuit Failure GO to PINPOINT TEST D .
C1155 ABS Speed Wheel Sensor LF Input Circuit Failure GO to PINPOINT TEST D .
C1165 ABS Speed Wheel Sensor RR Input Circuit Failure GO to PINPOINT TEST D .
C1175 ABS Speed Wheel Sensor LR Input Circuit Failure GO to PINPOINT TEST D .
C1222 ABS Wheel Speed Sensor Mismatch GO to PINPOINT TEST F .
C1266 ABS ABS Valve Power Relay Circuit Failure GO to PINPOINT TEST E .
C1296 ABS Wheel Speed LF Signal Fault GO to PINPOINT TEST F .
C1297 ABS Wheel Speed RF Signal Fault GO to PINPOINT TEST F .
C1298 ABS Wheel Speed RR Signal Fault GO to PINPOINT TEST F .
C1299 ABS Wheel Speed LR Signal Fault GO to PINPOINT TEST F .
C1300 ABS ABS Hydraulic Pump Motor Circuit Failure GO to PINPOINT TEST G .
C1805 ABS Mismatched PCM and/or ABS/TC Module CHECK the part numbers. INSTALL the correct module. REFER to INSTALLATION for the PCM, or ANTI-LOCK BRAKE SYSTEM (ABS) MODULE  for the ABS module. Verify correct module and tire size configuration.
U0073 ABS Control Module Communication Bus Off REFER to MODULE COMMUNICATIONS NETWORK .
U1900 ABS CAN communication Bus Fault - Receive error REFER to PINPOINT TEST M: NO HIGH SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION and PINPOINT TEST N: NO MEDIUM SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U2023 ABS Fault received from External Node If any other DTCs are present, DIAGNOSE those first. CLEAR all DTCs. DRIVE the vehicle. If the DTC is still present, INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE .

For a complete master list of ABS DTCs, refer to DIAGNOSTIC TROUBLE CODE TABLE .

INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Source Action
C1093 Traction Control Disable Switch Circuit Failure Instrument Cluster GO to PINPOINT TEST K .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.