Cruise control stop working light dont show on dash can a fuse be out if so where is it located

There are three fuse's in the smart junction box , do you know where it is ? It's under the dash panel left side ! The fuse's are F2.27- 10amp , F2.32 - 10amp , F2.17 - 15 amp . They power the speed control servo ! Maybe the control switch's on the steering wheel don't work.
A little back ground on the system ! Speed Control The vehicle speed control system consists of the following components:

• Brake pedal position (BPP) switch
• Speed control actuator cable
• Speed control switches
• Speed control deactivator switch
• Speed control indicator
• Speed control actuator
• Smart junction box (SJB)
• Principles of Operation
  The speed control system is designed to maintain vehicle a set speed above 48 km/h (30 mph). After the speed control ON switch is pressed, pressing the speed control switch SET/ACCEL will activate the speed control actuator. To increase a set speed, either press and hold for continuous acceleration, or momentarily tap the speed control switch SET/ACCEL for 1.6 km/h (1 mph) acceleration increments. To decrease a set speed, press and hold the speed control switch COAST until the target speed is reached, or momentarily tap the speed control switch COAST for 1.6 km/h (1 mph) deceleration increments. When the speed control system has been disabled by tapping the brake pedal, the speed control switch RESUME can be pressed and the vehicle will return to the original set speed if the vehicle is traveling over 48 km/h (30 mph) and the speed control switch OFF has not been pressed.
  NOTE: The deactivator switch is provided as an additional safety feature. Normally, when the brake pedal is pressed, an electrical signal from the brake lamp circuit to the speed control actuator will deactivate the system. Under increased brake pedal effort, the deactivator switch will open and remove power to the speed control actuator, releasing the throttle independently of the speed control actuator.
  NOTE: The clockspring provides the electrical interface between the steering column wiring and the speed control switches in the steering wheel.
  The inputs to the speed control actuator are:
  
  • Vehicle speed signal
  • Speed control switches
  • Brake pedal position (BPP) switch
  • Deactivator switch
  The outputs of the speed control actuator are:
  
  • Speed control indicator lamp
  • Speed control actuator cable controlling the throttle position
  • Inspection and Verification
    NOTE: If any concerns are noted with the speedometer, stoplamps, or horn, address those concerns by referring to the appropriate sections before continuing speed control diagnosis.
    
    1. Verify the customer concern by operating the speed control system.
    1. NOTE: Any aftermarket modifications, including but not limited to those listed below, may cause the speed control to not operate correctly:
       • Any wiring or lamp modifications affecting the brake lamp operation
       • LED brake lamps
       • Non-factory installed trailer wiring
       • Radios (speed sensitive, auto mute)
       • Remote starters and alarms
       • Lighting and electrical accessory modifications
       Visually inspect for obvious signs of mechanical or electrical damage:
       • Visually inspect the speed control actuator and accelerator controls.
       • Visually inspect the speed control cable without removing it and ensure smooth cable operation. Inspect the speed control cable connection to the throttle body.
       • Visually inspect the accelerator cable without removing it and ensure smooth cable operation. Inspect the accelerator cable connection to the throttle body. Also check for cable interference with the carpet, bulkhead grommet, insulation and instrument panel wiring.
    1. Visually inspect for obvious signs of mechanical and electrical damage.
    2. Visual Inspection Chart Mechanical Electrical
       • Speed control actuator cable
       • Throttle linkage
       • Battery junction box (BJB) fuse(s):
         • 4 (40A)
         • 12 (60A)
       • Smart junction box (SJB) fuses:
         • 14 (15A)
         • 57 (10A)
       • Wiring harness
       • Loose or corroded connections
       • Deactivator switch
       • Brake pedal position (BPP) switch
       • Speed control switches
       • Powertrain control module (PCM)
       • Speed control actuator
       • Bulb