Pinpoint Test C: Adjustable Brake Pedal Does Not Move
WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Use the flex probe kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.
- 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?
- 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.
- C3 CHECK THE ADJUSTABLE ACCELERATOR PEDAL SYSTEM
- Disconnect the brake pedal-to-accelerator pedal cable.
- 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 article. TEST the system for normal operation.
- NO : Go to C4.
- 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.
- 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 article. TEST the system for normal operation.
- C6 ISOLATE THE CONDITION
- Determine the position of the adjustable pedal.
- Is the pedal stopped in a mid-range position?
- 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.
- 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.
- 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.
- 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.
- 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
- 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.
- 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.
- 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.
- 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.
- 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.
- Is the resistance less than 5 ohms?
- YES : INSTALL a new adjustable pedal switch. TEST the system for normal operation.
- NO : Go to C13.
- 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.
- Is the voltage greater than 10 volts?
- YES : REPAIR the circuit. TEST the system for normal operation.
- NO : Go to C6.
- 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.
- Is the resistance less than 5 ohms?
- YES : INSTALL a new adjustable pedal switch. TEST the system for normal operation.
- NO : Go to C15.
- 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.
- 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.