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:

    Exhaust Manifold RH
    Removal and Installation 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. Raise the vehicle. For additional information, refer to Section. 3. Remove the dual converter Y-pipe. For additional information, refer to Sec ...

    Installation
    1. CAUTION: Install the brake pads in full axle sets. Do not install new brake pads on only one side of vehicle. Install the new slipper and brake pads. 2. Position the caliper on the anchor plate and install the bolts. 3. Install the wheel and tire ...

    Installation
    1. Install the lower intake manifold gaskets. 2. Connect the fuel charging wiring harness to the rear of the lower intake manifold and install the manifold. 3. Install the intake manifold fasteners and tighten in the sequence shown. 4. Position the fuel ...