Ford Mustang (1999-2004) Service Manual: Communications Network (Diagnosis and Testing)

Refer to Wiring Diagrams Cell 14 , Multiplex Communication Network for schematic and connector information.

Special Tool(s)

73 Digital Multimeter or equivalent 105-R0051
Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent diagnostic tool
Module Communications Network
General Specifications Communications Network Module Communications Network   ...

Principles of Operation
The vehicle has two module communications networks. The standard corporate protocol (SCP) which is an unshielded twisted pair cable (data bus plus, Circuit 914 [TN/OG] and data bus minus, Circuit ...

Other materials:

Component Tests
Idle Air Control (IAC) Valve 1. Open the hood. 2. NOTE: Key symptom is elevated idle speed while noise is occurring. NOTE: "Snapping" the throttle can induce the noise. Verify the condition by operating the vehicle for a short time. 3. Inspect the IAC valv ...

Principles of Operation
Key-In-Ignition Warning Chime The key-in-ignition warning chime activates when the generic electronic module (GEM) detects the ignition switch circuits are in the OFF or ACC states and when the GEM detects the driver door is ajar from the driver do ...

Display mode
You can choose to turn your screen on or off and if you would like to view the status bars on the top and bottom of the screen. Press DISP to see the options. Display Mode Voice Commands The following voice commands are available in display mode. If you are ...