SECTION 206-06: Hydraulic Brake Actuation
2014 Flex Workshop Manual
DIAGNOSIS AND TESTING
Procedure revision date: 05/02/2013

Diagnostic Routines


Special Tool(s)
Circuit Tester / Test Light
SGT27000
Flex Probe Kit
105-R025D or equivalent
Fluke 77-IV Digital Multimeter
FLU77-4 or equivalent
 

Diagnostic Routines

 

Pinpoint Test A: The Adjustable Pedals Only Move in 1-Second Intervals

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 127 , Adjustable Pedals for schematic and connector information.

Normal Operation and Fault Conditions

The SCCM uses a Hall-effect sensor integral to the motor to identify the current pedal position. The SCCM sends a reference voltage along the sensor feed circuit, through the Hall-effect sensor and back to the SCCM along the signal return circuit.

When one or more of the following DTCs set, the adjustable pedals enter a “jog mode”. The memory system recall will not function from either the memory set switch or the RKE transmitter while the pedals are in jog mode. The motor moves the pedals for only one second regardless of the length of time the adjustable pedals control switch is actually pressed.



 DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
  • B1368:11
Adjustable Pedal Position Feedback Sensor: Circuit Short to Ground Sets when the SCCM detects a short to ground on the Hall-effect sensor feed and/or return circuits. The SCCM continually checks for faults during normal operation when the ignition is ON and during the on-demand self test.
  • B1368:12
Adjustable Pedal Position Feedback Sensor: Circuit Short to Battery Sets when the SCCM detects a short to voltage on the Hall-effect sensor feed and/or return circuits. The SCCM continually checks for faults during normal operation when the ignition is ON and during the on-demand self test.

 
PINPOINT TEST A: THE ADJUSTABLE PEDALS ONLY MOVE IN 1-SECOND INTERVALS
Test Step Result / Action to Take
  A1 RETRIEVE THE SCCM DTCs  
  • Ignition ON.
  • Enter the following diagnostic mode on the scan tool: Self Test — SCCM .
  • Were DTC B1368:11 or B1386:12 retrieved?
Yes
GO to A2 .

No
If no DTCs were retrieved, CONFIGURE the SCCM using As-Built data. If other SCCM DTCs were retrieved, REFER to the DTC Chart in this section.
  A2 CHECK THE SCCM HALL-EFFECT CIRCUITS FOR A SHORT TO VOLTAGE  
  • Ignition OFF.
  • Disconnect: Adjustable Pedal Motor C2159.
  • Disconnect: SCCM C2424A.
  • Ignition ON.
  • Measure the voltage between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424A-22 RPP06 (GN) — Ground
    C2424A-26 LPP06 (YE/BU) — Ground



  • Is any voltage present?
Yes
REPAIR the affected circuit(s).

No
GO to A3 .
  A3 CHECK THE SCCM HALL-EFFECT CIRCUITS FOR A SHORT TO GROUND  
  • Ignition OFF.
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424A-22 RPP06 (GN) — Ground
    C2424A-26 LPP06 (YE/BU) — Ground



  • Are the resistances greater than 10,000 ohms?
Yes
GO to A4 .

No
REPAIR the affected circuit(s).
  A4 CHECK THE SCCM HALL-EFFECT CIRCUITS FOR AN OPEN  
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424A-22 RPP06 (GN) C2159-3 RPP06 (GN)
    C2424A-26 LPP06 (YE/BU) C2159-4 LPP06 (YE/BU)



  • Are the resistances less than 3 ohms?
Yes
GO to A5 .

No
REPAIR the affected circuit(s).
  A5 CHECK THE SCCM HALL-EFFECT CIRCUITS FOR A SHORT TOGETHER  
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424A-22 RPP06 (GN) C2424A-26 LPP06 (YE/BU)



  • Is the resistance greater than 10,000 ohms?
Yes
INSTALL a new brake pedal and bracket. REFER to Brake Pedal and Bracket in this section.

CLEAR the DTCs. REPEAT the self-test. If DTC B1368:11 or B1368:12 is retrieved again, INSTALL a new SCCM . REFER to Section 211-05 .

No
REPAIR the affected circuit(s).
 

Pinpoint Test B: The Adjustable Pedals are Inoperative or Do Not Operate Correctly — Using the Adjustable Pedals Control Switch

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 127 , Adjustable Pedals for schematic and connector information.

Normal Operation and Fault Conditions

The SCCM receives fused battery voltage from the BCM .

Pressing the adjustable pedals control switch causes the SCCM to send current along one circuit to the adjustable pedal motor. The current returns to the SCCM along another circuit and is grounded through the SCCM , this moves the pedals in the desired direction. Pressing the adjustable pedals control switch in the opposite direction reverses the current flow through the circuits and moves the pedals in the opposite direction.



 DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
  • B137D:18
Pedal Adjustment Motor: Circuit Current Below Threshold Sets when the SCCM detects current flow to the adjustable pedal motor below a preset limit. The SCCM checks for this fault during the on-demand self test.
  • B137D:19
Pedal Adjustment Motor: Circuit Current Above Threshold Sets when the SCCM detects current flow to the adjustable pedal motor above a preset limit. The SCCM continually checks for this fault during normal operation when the ignition is ON and during the on-demand self test.
  • B137D:71
Pedal Adjustment Motor: Actuator Stuck Sets when the SCCM detects current flow to the adjustable pedal motor is within a specific range but above a preset limit. The SCCM checks for this fault during the on-demand self test.

Visual Inspection and Diagnostic Pre-checks

Inspect BCM fuses 23 (15A) and 24 (15A).

 
PINPOINT TEST B: THE ADJUSTABLE PEDALS ARE INOPERATIVE OR DO NOT OPERATE CORRECTLY — USING THE ADJUSTABLE PEDALS CONTROL SWITCH
Test Step Result / Action to Take
  B1 CHECK THE ADJUSTABLE PEDAL MOTOR AND CABLE INSTALLATION  
  • Check the adjustable pedal motor and cable for correct installation.
  • Are the motor and cable correctly installed?
Yes
GO to B2 .

No
CORRECT the adjustable pedal motor and/or cable installation.
  B2 INSPECT FOR FOREIGN OBJECTS OR MATERIAL  
  • Inspect the adjustable brake pedal and accelerator assemblies for foreign material causing a binding condition.
  • Are the pedal assemblies free from foreign material?
Yes
GO to B3 .

No
REMOVE the foreign material.
  B3 CHECK THE SCCM LOGIC VOLTAGE INPUT  
  • Ignition OFF.
  • Disconnect: SCCM C2424A.
  • Measure the voltage between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424A-5 SBP23 (WH/RD) — Ground



  • Is the voltage greater than 11 volts?
Yes
GO to B4 .

No
VERIFY BCM fuse 23 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the cause of the circuit short.
  B4 CHECK THE SCCM HIGH CURRENT VOLTAGE INPUT  
  • Disconnect: SCCM C2424B.
  • Measure the voltage between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424B-8 SBP24 (VT/RD) — Ground



  • Is the voltage greater than 11 volts?
Yes
GO to B5 .

No
VERIFY BCM fuse 24 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the cause of the circuit short.
  B5 CHECK THE SCCM LOGIC GROUND CIRCUIT FOR AN OPEN  
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424A-2 GD375 (BK/BU) — Ground



  • Is the resistances less than 3 ohms?
Yes
GO to B6 .

No
REPAIR the circuit.
  B6 CHECK THE SCCM HIGH CURRENT GROUND CIRCUIT FOR AN OPEN  
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424B-5 GD375 (BK/BU) — Ground



  • Is the resistances less than 3 ohms?
Yes
GO to B7 .

No
REPAIR the circuit.
  B7 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TO VOLTAGE  
  • Disconnect: Adjustable Pedal Motor C2159.
  • Ignition ON.
  • Measure the voltage between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2159-1 CPP05 (WH/VT) — Ground
    C2159-2 CPP01 (WH/OG) — Ground



  • Is any voltage present?
Yes
REPAIR the affected circuit(s).

No
GO to B8 .
  B8 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TO GROUND  
  • Ignition OFF.
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2159-1 CPP05 (WH/VT) — Ground
    C2159-2 CPP01 (WH/OG) — Ground



  • Are the resistances greater than 10,000 ohms?
Yes
GO to B9 .

No
REPAIR the affected circuit(s).
  B9 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR AN OPEN  
  • Ignition OFF.
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424B-4 CPP01 (WH/OG) C2159-1 CPP05 (WH/VT)
    C2424B-7 CPP05 (WH/VT) C2159-2 CPP01 (WH/OG)



  • Are the resistances greater than 10,000 ohms?
Yes
GO to B10 .

No
REPAIR the affected circuit(s).
  B10 CHECK THE SCCM OUTPUT  
  • Ignition OFF.
  • Connect: SCCM C2424A.
  • Connect: SCCM C2424B.
  • NOTICE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this section. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.
  • NOTE: When the adjustable pedal motor connector is disconnected on vehicles with the memory feature, the SCCM provides voltage in 1 second intervals only, due to the open circuit in the Hall-effect sensor circuit
  • Connect a test light between:


    • Pin Circuit Pin Circuit
    C2159-2 CPP01 (WH/OG) C2159-1 CPP05 (WH/VT)



  • Press the adjustable pedals control switch in the forward position and verify the test light is illuminated.
  • Press the adjustable pedals control switch in the rearward position and verify the test light is illuminated.
  • Does the test light illuminate when the adjustable pedals control switch is pressed in each direction?
Yes
INSTALL a new brake pedal assembly. REFER to Brake Pedal and Bracket in this section.

No
INSTALL a new adjustable pedals control switch. REFER to Adjustable Pedals Control Switch in this section. CLEAR the DTCs. REPEAT the self-test. If DTCs B137D:18, 19 or 71 return, or if the adjustable pedals are still inoperative/do not operate correctly, GO to B11 .
  B11 CHECK THE SCCM FOR CORRECT OPERATION  
  • Ignition OFF.
  • Disconnect and inspect SCCM connectors C2424A and C2424B.
  • Repair:
    • corrosion (install new connector or terminals — clean module pins)
    • damaged or bent pins — install new terminals/pins
    • pushed-out pins — install new pins as necessary
  • Connect: SCCM C2424A.
  • Connect: SCCM C2424B.
  • Connect: Adjustable Pedal Motor C2159.
  • Make sure all connectors seat and latch correctly, then operate the system and determine if the concern is still present.
  • Is the concern still present?
Yes
CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new SCCM . REFER to Section 211-05 .

No
The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
 

Pinpoint Test C: The Adjustable Pedals are Inoperative or Do Not Operate Correctly - Using the Memory SET Switch Buttons or the RKE Transmitter

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 127 , Adjustable Pedals for schematic and connector information.

Normal Operation and Fault Conditions

Pressing the memory SET switch causes the DSM to communicate the desired pedal position to the BCM on the MS-CAN . The BCM acts as a gateway module and relays the message to the SCCM along the HS-CAN . The SCCM sends current to the adjustable pedal motor to move the pedals to the required position.

Pressing the unlock button on the RKE transmitter sends a radio frequency signal to the TPM module. The TPM module sends a message to the RFA module along a dedicated LIN . The RFA module then sends a message to the BCM along the MS-CAN . The BCM acts as a gateway module and relays the message to the SCCM along the HS-CAN . The SCCM sends current to the adjustable pedal motor to move the pedals to the position programmed to the key.

 
PINPOINT TEST C: THE ADJUSTABLE PEDALS ARE INOPERATIVE OR DO NOT OPERATE CORRECTLY — USING THE MEMORY SET SWITCH OR THE RKE TRANSMITTER
Test Step Result / Action to Take
  C1 CHECK THE ADJUSTABLE PEDAL OPERATION WITH THE ADJUSTABLE PEDALS CONTROL SWITCH  
  • Press the adjustable pedals control switch in each direction for more than one second and observe the adjustable pedals.
  • Do the adjustable pedals operate for more than one second in the direction selected using the switch?
Yes
GO to C2 .

No
If the pedals do not move at all using the switch, GO to Pinpoint Test B . If the pedals only move in 1 second intervals regardless of switch operation, GO to Pinpoint Test A .
  C2 CHECK THE MEMORY SYSTEM OPERATION  
  • Set a memory position for the driver seat, exterior mirrors, steering column and adjustable pedals to memory SET switch button 1. Refer to Memory Position Programming in Section 501-10 .
  • Select PARK.
  • Press the memory SET switch button 1 and observe:
    • Driver seat
    • Exterior mirrors
    • Steering column
    • Adjustable pedals
  • Do all 4 items move when the button is pressed?
Yes
GO to C3 .

No
If all 4 items do not move, REFER to Section 501-10 to diagnose the memory SET switch. If both the adjustable pedals and the steering column do not move or only the adjustable pedals do not move, GO to C4 . If only the driver seat does not move, REFER to Section 501-10 to diagnose the driver seat. If only the exterior mirrors do not move, REFER to Section 501-09 to diagnose the memory mirrors. If only the steering column does not move, REFER to Section 211-04 to diagnose the power adjustable steering column.
  C3 CHECK THE RKE OPERATION  
  • Set a memory position in the RKE for the driver seat, exterior mirrors and adjustable pedals. Refer to Remote Memory Activation in Section 501-14A or Section 501-14B .
  • Select PARK.
  • Press the unlock button on the RKE transmitter/ IA key and observe:
    • Driver seat
    • Exterior mirrors
    • Steering column
    • Adjustable pedals
  • Do all 4 items move when the button is pressed?
Yes
The system is operating correctly at this time.

No
If all 4 items do not move, REFER to Section 501-14A or Section 501-14B to diagnose the RKE transmitter/ IA key. If both the adjustable pedals and the steering column do not move or only the adjustable pedals do not move, GO to C4 . If only the driver seat does not move, REFER to Section 501-10 to diagnose the driver seat. If only the exterior mirrors do not move, REFER to Section 501-09 to diagnose the memory mirrors. If only the steering column does not move, REFER to Section 211-04 to diagnose the power adjustable steering column.
  C4 CHECK FOR DSM OR BCM DTCs  
  • Ignition ON.
  • Enter the following diagnostic mode on the scan tool: Self Test — DSM .
  • Record any DSM DTCs.
  • Enter the following diagnostic mode on the scan tool: Self Test — BCM .
  • Record any BCM DTCs.
  • Are DTCs present in the DSM or the BCM ?
Yes
For BCM DTCs, REFER to Section 419-10 . For DSM DTCs, REFER to Section 501-10 .

No
GO to C5 .
  C5 CHECK THE ADJUSTABLE PEDAL MOTOR AND HALL-EFFECT SENSOR CIRCUITS FOR A SHORT TO VOLTAGE  
  • Ignition OFF.
  • Disconnect: Steering Column Tilt Motor C2250.
  • Disconnect: Steering Column Telescoping Motor C227.
  • Disconnect: SCCM C2424A.
  • Disconnect: SCCM C2424B.
  • Disconnect: Adjustable Pedal Motor C2159.
  • Ignition ON.
  • Measure the voltage between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2159-1 CPP05 (WH/VT) — Ground
    C2159-2 CPP01 (WH/OG) — Ground
    C2159-3 RPP06 (GN) — Ground
    C2159-4 LPP06 (YE/BU) — Ground



  • Is any voltage present?
Yes
REPAIR the affected circuit(s).

No
GO to C6 .
  C6 CHECK THE ADJUSTABLE PEDAL MOTOR AND HALL-EFFECT SENSOR CIRCUITS FOR A SHORT TO GROUND  
  • Ignition OFF.
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2159-1 CPP05 (WH/VT) — Ground
    C2159-2 CPP01 (WH/OG) — Ground
    C2159-3 RPP06 (GN) — Ground
    C2159-4 LPP06 (YE/BU) — Ground



  • Are the resistance values greater than 10,000 ohms?
Yes
GO to C7 .

No
REPAIR the affected circuit(s).
  C7 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR AN OPEN  
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424B-4 CPP01 (WH/OG) C2159-1 CPP05 (WH/VT)
    C2424B-7 CPP05 (WH/VT) C2159-2 CPP01 (WH/OG)



  • Are the resistances less than 3 ohms?
Yes
GO to C8 .

No
REPAIR the affected circuit(s).
  C8 CHECK THE ADJUSTABLE PEDAL MOTOR HALL-EFFECT SENSOR CIRCUITS FOR AN OPEN  
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2424A-22 RPP06 (GN) C2159-3 RPP06 (GN)
    C2424A-26 LPP06 (YE/BU) C2159-4 LPP06 (YE/BU)



  • Are the resistances less than 3 ohms?
Yes
GO to C9 .

No
REPAIR the affected circuit(s).
  C9 CHECK THE ADJUSTABLE PEDAL MOTOR AND HALL-EFFECT SENSOR CIRCUITS FOR A SHORT TOGETHER  
  • Measure the resistance between:


    • Positive Lead Negative Lead
    Pin Circuit Pin Circuit
    C2159-1 CPP05 (WH/VT) C2159-2 CPP01 (WH/OG)
    C2159-1 CPP05 (WH/VT) C2159-3 RPP06 (GN)
    C2159-1 CPP05 (WH/VT) C2159-4 LPP06 (YE/BU)
    C2159-2 CPP01 (WH/OG) C2159-3 RPP06 (GN)
    C2159-2 CPP01 (WH/OG) C2159-4 LPP06 (YE/BU)
    C2159-3 RPP06 (GN) C2159-4 LPP06 (YE/BU)



  • Are the resistances greater than 10,000 ohms?
Yes
CONFIGURE the SCCM using As-built data and TEST the system for normal operation.

If the adjustable pedals do not operate correctly, INSTALL a new brake pedal assembly. REFER to Brake Pedal and Bracket in this section.

No
REPAIR the affected circuit(s).