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:

Engine (Disassembly)
Special Tool(s) Impact Slide Hammer 100-001 (T50T-100-A) Remover, Crankshaft Rear Oil Slinger 303-514 (T95P-6701-AH) Remover, Crankshaft Rear Oil Seal 303-519 (T95P-6701-EH) Remover, Crankshaft Vibration ...

Control Valve
Removal 1. Disconnect the brake tubes. 2. Remove the brake fluid control valve bracket nut. Installation 1. To install, reverse the removal procedure. ...

Manual
WARNING: Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with eyes. Wash hands thoroughly after handling. If brake fluid contacts eyes, flush eyes with running water for 15 minutes. Get medical attention if irritation persist ...