Ford Mustang (1999-2004) Service Manual: 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:
  • 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.

    Principles of Operation
    The speed control system is designed to maintain vehicle speed above 48 km/h (30 mph). After the ON switch is depressed, depressing the SET/ACCEL switch will activate the speed control servo. To inc ...

    Symptom Chart
    NOTE: New speed control diagnostic software is available in Version 12 or higher for the diagnostic tool. When using this software, it is necessary to use Next Generation Speed Control Adapter 007- ...

    Other materials:

    Driving through water
    WARNING: Drive through water in an emergency only, and not as part of normal driving. WARNING: Engine damage can occur if water enters the air filter. Note: Driving through deep water may allow water into the transmission or air intake and can cause internal v ...

    Synchronizers
    Disassembly and Assembly NOTE: This procedure applies to all synchronizer assemblies. 1. Scribe an alignment mark on the sliding sleeve and the hub for assembly reference. 2. Remove the sliding sleeve, then remove the synchronizer struts and the springs. 3 ...

    Inspection and Verification
    1. Verify the customer concern by operating the system. 2. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Electrical Power window regulator Window run weatherstrip Do ...