Ford Mustang (1999-2004) Service Manual: Interior Lighting (Diagnosis and Testing)

Refer to Wiring Diagrams Cell 111 , Remote Control Alarm and Lock System for schematic and connector information.

Refer to Wiring Diagrams Cell 59 , Generic Electronic Module for schematic and connector information.

Refer to Wiring Diagrams Cell 89 , Courtesy Lamps 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 scan tool
Interior Lighting
Interior Lighting The interior lighting system consists of the following: map/dome lamp assembly rear-high mount/cargo lamp assembly dimmer switch door ajar switch (located on the door latc ...

Principles of Operation
Battery Saver The battery saver feature provides automatic shut-off of power to demand and courtesy lamp circuitry. When the generic electronic module (GEM) detects the ignition switch circuits ...

Other materials:

Dual-Function Pressure Switch (4.6L)
The dual-function pressure switch is used to interrupt A/C compressor operation in the event of high system discharge pressures. The dual-function pressure switch is mounted on a Schrader valve-type fitting on the high pressure side of the A/C manifold ...

Key Programming - Enable/Disable Spare Key Programming
Special Tool(s) Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent diagnostic tool NOTE: The spare key programming switch is a diagnostic tool programmable switch that provides the ca ...

Weld Nut Repair - "J" Nut, Restraints Control Module (RCM)
WARNING: To avoid accidental deployment and possible personal injury, the backup power supply must be depleted before repairing or replacing any front or side air bag supplemental restraint system (SRS) components and before servicing, replacing, ...