Interior Lighting -- Electric: Overview Ford Focus III

Overview

The interior lighting system consists of

1. Courtesy lamps
2. Demand lamps
3. Ambient lighting

The courtesy lamps subsystem consists of

1. Interior lamps
2. Puddle lamps
3. Door ajar switches (integrated into the door latches)
4. Courtesy lamp switch (integrated into the front interior lamp)
5. DDM
6. PDM
7. BCM

The courtesy lamps provide illumination to the vehicle interior and below the exterior mirrors when entering or exiting the vehicle or when requested using the courtesy lamp switch located on the interior lamp.

The demand lamps subsystem consists of

1. Interior lamps (map lamps)
2. Vanity mirror lamps
3. Luggage compartment lamp
4. BCM

The demand lamps provide illumination to specific areas within the vehicle when needed.

The BCM energizes the interior light relay to supply voltage to the demand lamps when the battery saver feature is not active.

The ambient lighting subsystem consists of

1. Ambient lighting Light Emitting Diodes (LEDs)
2. Ambient lighting module (integrated into the overhead console)
3. Ambient lighting switches (integrated into the overhead console)

The ambient lighting provides aesthetically colored illumination to the center console storage bin and cup holders, the door map pockets, the door pull handles, the door release handles, and the front footwells for illuminated entry or when the ignition is in RUN with the parking lamps on. The ambient lighting is controlled using the buttons and knob on the overhead console.

Scheme 11

Normal Operation and Fault Conditions

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).

REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION (417-02 Interior Lighting, Description and Operation).