C0040:64, C0044:28

• Inspect the stoplamp switch and brake pedal assembly, verify there is no brake pedal pressure unintentionally applied due to incorrect stoplamp switch or brake pedal installation.

  REFER to: STOPLAMP SWITCH .

  REFER to: BRAKE PEDAL AND BRACKET .

Are the stoplamp switch and brake pedal assembly installed correctly? 

1. Yes  : GO to C2 
2. No  : REINSTALL the stoplamp switch or brake pedal assembly.

   REFER to: STOPLAMP SWITCH .

   REFER to: BRAKE PEDAL AND BRACKET .

• Ignition ON.
• Using a diagnostic scan tool, monitor the PCM  BOO1 Parameter Identification (PID) while pressing and releasing the brake pedal.

Does the Parameter Identification (PID) reflect the brake pedal movement? 

1. Yes  : GO to C3 
2. No  : DIAGNOSE the BPP  switch.

   REFER to: STOPLAMPS .

• Using a diagnostic scan tool, monitor the ABS  module BOO_ABS Parameter Identification (PID) while pressing and releasing the brake pedal.

Does the Parameter Identification (PID) reflect the brake pedal movement? 

1. Yes  : The system is operating correctly at this time. The DTC  may have been set due to high network traffic or an intermittent fault condition.
2. No  : GO to C4 

• Using a diagnostic scan tool, carry out the ABS  module self-test.
• Retrieve and record all ABS  module Diagnostic Trouble Codes (DTCs).

Are any communication (U-code) Diagnostic Trouble Codes (DTCs) present? 

1. Yes  : GO to the DTC CHART: ANTI-LOCK BRAKE SYSTEM (ABS) MODULE .
2. No  : GO to C5 

• Using a diagnostic scan tool, carry out the PCM  KOEO self-test.
• Retrieve and record all PCM  Diagnostic Trouble Codes (DTCs).

Are any PCM Diagnostic Trouble Codes (DTCs) present? 

1. Yes  : GO to the DTC  Chart: Powertrain Control Module (PCM).

   REFER to: ELECTRONIC ENGINE CONTROLS - 1.6L EcoBoost (132kW/180PS) - Sigma .

   REFER to: ELECTRONIC ENGINE CONTROLS - 2.0L EcoBoost (184kW/250PS) - MI4 .

   REFER to: ELECTRONIC ENGINE CONTROLS - 2.5L Duratec (125kW/170PS) .

2. No  : GO to C6 

• Verify all ABS  module-to-HCU  fasteners are tightened to their correct torque specifications.

Are the ABS module-to- HCU fasteners tightened correctly 

1. Yes  : GO to  C8
2. No  : TIGHTEN all ABS  module-to-HCU  fasteners to their specified torque value. GO to C7 

• Using a diagnostic scan tool, clear the ABS  module Diagnostic Trouble Codes (DTCs).
• Ignition OFF.
• Ignition ON.
• Using a diagnostic scan tool, carry out the ABS  module self-test.

Is DTC C0040:64 or C0044:28 present? 

1. Yes  : GO to C8 
2. No  : The condition that caused the concern has been repaired. RETURN the vehicle to the customer.

• Ignition OFF.
• Disconnect and inspect ABS  module C135  .
• Repair:

  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

• Connect ABS  module C135  . Make sure it seats and latches correctly.
• Operate the system and determine if the concern is still present.

Is the concern still present? 

1. Yes  : CHECK OASIS  for any applicable Technical Service Bulletins (TSBs). If a TSB  exists for this concern, DISCONTINUE this test and FOLLOW the TSB  instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new ABS  module and HCU  assembly.

   REFER to: HYDRAULIC CONTROL UNIT (HCU)  .

2. No  : 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.