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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Abs Guided Routine Testing - Pinpoint Tests A - AZ >> Abs Pinpoint Tests >> Pinpoint Tests AM: Brake Pressure Sensor Fault >> Possible Causes

Possible Causes

  1. AM1: CHECK FOR DTC C0040:64, U3003:16 OR U3003:17 
    • Review the results from the ABS module self-test.
    • Is DTC C0040:64, U3003:16 or U3003:17 present? 
    Yes No
    For DTC C0040:64, GO to PINPOINT TEST AC .
    For DTC U3003:16, GO to PINPOINT TEST A .
    For DTC U3003:17, GO to PINPOINT TEST F .    		 Go to  AM2.
  2. AM2: RECHECK FOR THE ABS MODULE DTCS 
    • Ignition ON, engine OFF.
    • Clear the ABS DTCs.
    • Put the ABS module in sleep mode by performing the following steps:
      • With ALL doors closed, set the ignition from ON to OFF.
      • Disconnect the diagnostic scan tool.
      • Open the door, exit the vehicle and close the door.
      • Wait a minimum of 90 seconds for the ABS module to enter sleep mode.
    • Ignition ON, engine OFF.

      Carry out the ABS self-test.

    • Are any DTCs shown in the ABS DTC Fault Trigger Conditions table present? 
    Yes No
    Go to  AM5. The system is operating correctly. The concern may have been caused by a temporary condition.
  3. AM3: CALIBRATE THE ABS MODULE 
    NOTE: The vehicle must be on level ground and at a complete standstill during Interactive Vehicle Dynamics (IVD) Initialization. Any vehicle movement results in false values for this test.
    • Using a diagnostic scan tool, carry out the IVD Initialization routine. Follow the diagnostic scan tool directions.
    • Ignition OFF.
    • Ignition ON, engine OFF.
    • Clear the ABS DTCs.
    • Ignition OFF.
    • Ignition ON, engine OFF.

      Carry out the ABS self-test.

    • Is DTC C0044:54 present? 
    Yes No
    Go to  AM6. If DTC C1A08:1C or any other C0044:XX DTC is present, Go to  AM4.
    For all other ABS module DTCs, GO to the DTC Chart: ABS Module.
  4. AM4: CHECK THE ABS MODULE-TO-HCU FASTENERS 
    • Ignition OFF.
    • Verify all ABS module-to-HCU fasteners are tightened to specifications. Refer to ABS Module Removal and Installation in the Anti-Lock Brake System (ABS) and Stability Control article.
    • Ignition ON, engine OFF.
    • Clear the ABS DTCs.
    • Ignition OFF.
    • Ignition ON, engine OFF.

      Carry out the ABS self-test.

    • Is DTC C0044:49, C0044:8F or C1A08:1C present? 
  5. AM5: BLEED THE BRAKE SYSTEM AND RECHECK FOR DTC C0044:64 
    • Inspect the brake tubes and connections for damage and leaks. Repair or install new brake tubes as necessary.
    • Bleed the brake system. Refer to the Brake System General Information article.
    • Using a diagnostic scan tool, carry out the pressure sensor calibration routine.
    • Ignition ON, engine OFF.
    • Connect a battery charger to the 12-volt battery.
    • Allow the vehicle to sit for 60 minutes with the ignition on.
    • Clear the ABS DTCs.
    • Disconnect the battery charger.
    • Put the ABS module in sleep mode by performing the following steps:
      • With ALL doors closed, set the ignition from ON to OFF.
      • Disconnect the diagnostic scan tool.
      • Open the door, exit the vehicle and close the door.
      • Wait a minimum of 90 seconds for the ABS module to enter sleep mode.
    • Ignition ON, engine OFF.

    Carry out the ABS self-test.

    • Are any DTCs shown in the ABS DTC Fault Trigger Conditions table present? 
  6. AM6: CHECK FOR CORRECT ABS OPERATION 
    • Ignition OFF.
    • ABS Module connector disconnected.
    • Inspect all disconnected electrical connectors for the following:
      • corrosion - install new connector or terminal - clean 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
    • ABS Module connector connected. Make sure the connector seats and latches correctly.
    • Is the concern still present? 
    Yes No
    CHECK OASIS for any service articles: TSB, GSB, SSM or FSA.
    If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions.
    If no service articles address this concern, INSTALL a new HCU and ABS module assembly. REFER to the Anti-Lock Brake System (ABS) and Stability Control article.    		 The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
  7. AM7: CHECK FOR CORRECT ABS OPERATION 
    • Put the ABS module in sleep mode by performing the following steps:
      • With ALL doors closed, set the ignition from ON to OFF.
      • Disconnect the diagnostic scan tool.
      • Open the door, exit the vehicle and close the door.
      • Wait a minimum of 90 seconds for the ABS module to enter sleep mode.
    • ABS_B Module connector disconnected. (C135B)
    • ABS_A Module connector disconnected. (C135A)
    • Inspect all disconnected electrical connectors for the following:
      • corrosion - install new connector or terminal - clean 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
    • ABS_B Module connector connected. (C135B) Make sure the connector seats and latches correctly.
    • ABS_A Module connector connected. (C135A) Make sure the connector seats and latches correctly.
    • Is the concern still present? 
    Yes No
    The HCU and ABS module are a single assembly known as the EBB unit.
    CHECK OASIS for any service articles: TSB, GSB, SSM or FSA.
    If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions.
    If no service articles address this concern, INSTALL a new EBB unit. REFER to the Anti-Lock Brake System (ABS) and Stability Control article.    		 The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
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