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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 627 (Brake System - General Information -- F250-F550 Super Duty) >> Diagnosis And Testing >> Brake System >> Pinpoint Tests >> Pinpoint Test C: Adjustable Brake Pedal Does Not Move >> Pinpoint Test C: Adjustable Brake Pedal Does Not Move

Pinpoint Test C: Adjustable Brake Pedal Does Not Move

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. C1 CHECK THE MOTOR SOUND 
    • Allow 2 minutes for the thermal overload to reset.
    • Operate the adjustable pedal control switch.
    • Can the adjustable pedal motor be heard to operate? 

    Yes  : GO to C2.

    No  : GO to  C5.

  2. C2 CHECK THE BRAKE PEDAL CABLE INSTALLATION 
    • Check the brake pedal cable for correct installation.
    • Is the brake pedal cable correctly installed? 

    Yes  : GO to C3.

    No  : CORRECT the brake pedal cable installation. TEST the system for normal operation.

  3. C3 CHECK THE ADJUSTABLE ACCELERATOR PEDAL SYSTEM 
    • Disconnect the brake pedal-to-accelerator pedal cable.
      Fig 1: Checking Adjustable Accelerator Pedal System
      G04644485Courtesy of FORD MOTOR CO.
    • Operate the adjustable pedal control switch.
    • Does the adjustable accelerator pedal operate now? 

    Yes  : INSTALL a new adjustable brake pedal assembly. REFER to HYDRAULIC BRAKE ACTUATION . TEST the system for normal operation.

    No  : GO to C4.

  4. C4 INSPECT FOR FOREIGN MATERIAL 
    • Inspect the adjustable accelerator pedal assembly for foreign material causing a binding condition.
    • Was any foreign material found? 

    Yes  : REMOVE the foreign material. RETEST for normal operation.

    No  : GO to C5.

  5. C5 CHECK THE CABLE 
    • Inspect the end of the brake pedal motor cable for wear or damage.
    • Is the cable end OK? 

    Yes  : GO to C6.

    No  : INSTALL a new accelerator pedal cable. REFER to ACCELERATION CONTROL . TEST the system for normal operation.

  6. C6 ISOLATE THE CONDITION 
    • Determine the position of the adjustable pedal.
    • Is the pedal stopped in a mid-range position? 

    Yes  : GO to C7.

    No  : If the pedal is in the full forward position, GO to. If the pedal is in the full rearward position, GO to  C14.

  7. C7 CHECK CIRCUIT 1567 (RD/LB) FOR AN OPEN 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Key in ACCESSORY position.
    • Measure the voltage between adjustable pedal switch C2089-2, circuit 1567 (RD/LB), harness side and ground.
      Fig 2: Checking Circuit 1567 (RD/LB) For Open
      G04644486Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : GO to C8.

    No  : VERIFY CJB fuse 1 is OK. If OK, REPAIR circuit 1567 (RD/LB) for an open. TEST the system for normal operation.

  8. C8 CHECK THE ADJUSTABLE PEDAL SWITCH FOR AN OPEN 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Press the switch to the forward and rearward positions.
    • Measure the resistance between the adjustable pedal switch terminals 2 and 7 (forward); and between terminals 2 and 1 (rearward), component side.
    • Are the resistances less than 5 ohms? 

    Yes  : GO to C9.

    No  : INSTALL a new adjustable pedal switch. TEST the system for normal operation.

  9. C9 CHECK THE CIRCUIT 57 (BK) FOR AN OPEN 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Measure the resistance between adjustable pedal switch C2089-3, circuit 57 (BK), harness side and ground; and between adjustable pedal switch C2089-6, circuit 57 (BK), harness side and ground.
      Fig 3: Checking Circuit 57 (Bk) For Open
      G04644487Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms at both terminals? 

    Yes  : GO to C10.

    No  : REPAIR circuit 57 (BK) for an open. TEST the system for normal operation

  10. C10 CHECK CIRCUIT 1490 (LB/OG) FOR AN OPEN 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Disconnect: Adjustable Pedal Motor C2003.
    • Measure the resistance between adjustable pedal switch C2089-1, circuit 1490 (LB/OG), harness side and adjustable pedal motor C2003-2, circuit 1490 (LB/OG), harness side.
      Fig 4: Checking Circuit 1490 (LB/OG) For Open
      G04644488Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to C11.

    No  : REPAIR circuit 1490 (LB/OG) for an open. TEST the system for normal operation.

  11. C11 CHECK CIRCUIT 1490 (LB/OG) FOR A SHORT TO VOLTAGE 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Measure the voltage between adjustable pedal switch C2089-1, circuit 1490 (LB/OG), harness side and ground.
      Fig 5: Checking Circuit 1490 (LB/OG) For Short To Voltage
      G04644489Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : REPAIR circuit 1490 (LB/OG) for a short to voltage. TEST the system for normal operation.

    No  : GO to  C6.

  12. C12 CHECK THE ADJUSTABLE PEDAL SWITCH REARWARD POSITION FOR A SHORT 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Measure the resistance between the adjustable pedal switch terminals 1 and 2 component side.
      Fig 6: Checking Adjustable Pedal Switch Rearward Position For Short
      G04644490Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : INSTALL a new adjustable pedal switch. TEST the system for normal operation.

    No  : GO to C13.

  13. C13 CHECK CIRCUIT 1489 (LB/BK) FOR A SHORT TO VOLTAGE 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Measure the voltage between adjustable pedal switch C2089-7, circuit 1489 (LB/BK), harness side and ground.
      Fig 7: Checking Circuit 1489 (LB/BK) For Short To Voltage
      G04644491Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : REPAIR the circuit. TEST the system for normal operation.

    No  : GO to  C6.

  14. C14 CHECK THE ADJUSTABLE PEDAL SWITCH FOR A SHORT 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Measure the resistance between the adjustable pedal switch terminals 1 and 7 component side.
      Fig 8: Checking Adjustable Pedal Switch For Short
      G04644492Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : INSTALL a new adjustable pedal switch. TEST the system for normal operation.

    No  : GO to C15.

  15. C15 CHECK CIRCUIT 1489 (LB/BK) FOR AN OPEN 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Disconnect: Adjustable Pedal Motor C2003.
    • Measure the resistance between adjustable pedal switch C2089-7, circuit 1489 (LB/BK), harness side and adjustable pedal motor C2003-1, circuit 1489 (LB/BK), harness side.
      Fig 9: Checking Circuit 1489 (LB/BK) For Open
      G04644493Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : INSTALL a new adjustable pedal motor.

    No  : REPAIR circuit 1489 (LB/BK) for an open. TEST the system for normal operation.

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