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HOMESERVICE MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 496 (ABS GUIDED ROUTINE)PINPOINT TESTSPINPOINT TESTS H: HYDRAULIC PUMP FAULTSPOSSIBLE CAUSES
2021 Ford Edge SE, 4WD

Possible Causes

2021 Ford Edge SE, 4WDSECTION Possible Causes
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  • Low voltage concern - battery or charging system
  • Fuses
  • Wiring, terminals or connectors
  • HCU
  • ABS module
  1. H1: CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE BATTERY VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE) 
    • Ignition ON.
    • Using a diagnostic scan tool, clear the ABS  Diagnostic Trouble Codes (DTCs).
    • Ignition OFF.
    • Ignition ON.
    • Using a diagnostic scan tool, carry out the ABS  module self-test.
    • Review the recorded DTCs from the ABS  module self-test.

    Are the battery voltage DTCs such as U3003:16 or U3003:17 present? 

    Yes No
    Diagnose all ABS battery voltage DTCs before diagnosing any HCU DTCs  . GO to the ABS DTC  Chart. Go to  H2.
  2. H2: CHECK THE BATTERY CONDITION AND CHARGING SYSTEM 

    Are the battery and charging system operating correctly? 

    Yes No
    Go to  H3 For a battery concern.
    Refer to BATTERY .
    For a charging system concern, Refer to CHARGING SYSTEM - 2.7L ECOBOOST (238KW/324PS)/3.5L ECOBOOST (272KW/370PS) , or CHARGING SYSTEM - 3.3L DURATEC-V6/5.0L 32V TI-VCT , or CHARGING SYSTEM - 3.0L POWER STROKE DIESEL
  3. H3: VERIFY ALL WIRING CONNECTIONS 
    • Ignition OFF.
    • Disconnect ABS C135 .
    • Disconnect BJB C1035B .
    • Disconnect BJB C1617D .
    • Disconnect BJB C1035D .
    • Using a good light source, inspect all disconnected electrical connectors for the following:
      • corrosion - install new connector or terminal and clean the module pins
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
      • spread terminals - install new terminals as necessary

    Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals? 

    Yes No
    Go to  H4 REPAIR the connector or terminals.
    Refer to the appropriate OEM CONNECTOR REPAIR PROCEDURES .
  4. H4: CHECK FOR FAULT REPEATABILITY 
    • Connect ABS C135 . Make sure the connector seats and latches correctly.
    • Connect BJB C1035B . Make sure the connector seats and latches correctly.
    • Connect BJB C1617D . Make sure the connector seats and latches correctly.
    • Connect BJB C1035D . Make sure the connector seats and latches correctly.
    • Ignition ON.
    • Using a diagnostic scan tool, clear the ABS  module DTCs  .
    • Ignition OFF.
    • Ignition ON.
    • Test drive the vehicle at speeds greater than 20 km/h (12 mph)
    • Ignition OFF.
    • Ignition ON.
    • Using a diagnostic scan tool, carry out the ABS  module self-test.
    • Retrieve and record all ABS  module Diagnostic Trouble Codes (DTCs).
    • Are any of the DTCs listed in the Fault Trigger Conditions Table present? 
      Yes No
      Go to  H5. The condition causing the concern is not present at this time. DISCONNECT and INSPECT the ABS module electrical connector. CLEAN or REPAIR the connector as necessary. ADDRESS the root cause of any connector or pin issues.
      Refer to CONNECTOR REPAIR PROCEDURES .
  5. H5: VERIFY THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE GROUND CONNECTIONS 
    NOTE: Refer to the appropriate Wiring Diagram Cell for schematic and connector information.
    • Ignition OFF.
    • Disconnect all ABS  control module ground joint connections.

      Refer to the appropriate Wiring Diagram for schematic and connector information.

    • Discard the bolt(s).
    • Inspect the ground joint connections for:
      • Rust
      • Corrosion
      • Other foreign material
      • Cross thread fasteners
      NOTE: Do not remove any paint from the body as the ground path conduction is through the bolt threads.
    • Clean or repair the ground joint connection as necessary.
    • Connect all ABS  module ground joint connections. Make sure the connections are clean, tightand not cross threaded.
    • INSTALL new bolts and tighten to 12 Nm (106 lb-in)
    • Measure the resistance between:
      • The ground joint stud.
      • The ground joint eyelet/circuit.

    Is the measured resistance less than 1 Ohm? 

    Yes No
    Go to  H6. CLEAN or REPAIR the ground joint Connection. Go to  H6.
  6. H6: CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE VOLTAGE SUPPLY 
    NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
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.