LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Mustang Mach 1, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Speed Control System >> Diagnosis And Testing >> Speed Control >> Inspection And Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection And Verification

NOTE: If any concerns are noted with the speedometer, stoplamps, or horn, address those concerns by referring to their associated sections before continuing speed control diagnosis.
  1. Verify the customer concern by operating the speed control system.
  2. Visually inspect for obvious signs of mechanical and electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Deactivator switch
    • Speed control actuator cable not attached to throttle
    • Speed control actuator cable not fully seated to the engine bracket
    • Central junction box (CJB) fuse(s):
      • 15 (15A)
      • 33 (15A)
      • 35 (15A)
    • Battery junction box (BJB) fuse HORN (20A)
    • Wiring harness
    • Loose or corroded connections
    • Speed control actuator switches
  3. If the fault is not visually evident, verify the symptom and go to the SYMPTOM CHART .