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Home >> Ford >> 2005 >> Excursion 5.4 L, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnosis And Testing >> Speed Control >> Symptom Chart
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Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
  • The speed control is inoperative - no flash codes
  • Speed control cable not attached to throttle.
  • Central junction box (CJB) fuse(s):
    • 34 (10A).
    • 27 (15A).
  • Circuitry.
  • Brake pedal position (BPP) switch.
  • Deactivator switch.
  • Speed control switch.
  • Anti-lock brake control module.
  • Powertrain control module (PCM).
  • Speed control servo.
  • The set speed fluctuates
  • Speed control servo.
  • Anti-lock brake control module.
  • Powertrain control module (PCM).
  • Circuitry.
  • Loose fit or binding between speed control cable and throttle body.
  • Engine controls.
  • The speed control does not disengage when the brakes are applied
  • Central junction box (CJB) fuse 34 (10A).
  • Circuitry.
  • Brake pedal position (BPP) switch.
  • Deactivator switch.
  • Speed control servo.
  • Binding speed control cable.
  • The speed control switch is inoperative
  • Speed control switch.
  • Speed control servo.
  • Flash with last switch pressed and dynamic pull occurs at throttle
  • -
  • Test passed.
  • Flash with last switch pressed, but no dynamic pull occurs at throttle and speed control inoperative
  • Speed control cable.
  • Speed control servo.
  • Flash code 2 - brake pedal position switch circuit failure
  • Circuitry.
  • Brake pedal position (BPP) switch.
  • Speed control servo.
  • Flash code 3 - deactivator switch circuit failure
  • Central junction box (CJB) fuse 24 (2A).
  • Circuitry.
  • Deactivator switch.
  • Speed control servo.
  • Flash with last switch pressed, dynamic pull occurs at throttle and speed control inoperative
  • Circuitry.
  • Anti-lock brake control module.
  • Powertrain control module (PCM).
  • Speed control servo.
  • The speed control indicator lamp is always on
  • Circuitry.
  • Bulb.
  • Instrument cluster.
  • Speed control servo.
  • Flash code 4 - speed signal circuit failure
  • Circuitry.
  • Speed control servo.
  • Anti-lock brake control module.