Ford Fusion Manuals

Ford Fusion: Instrument Panel and Interior Switches Illumination / Instrument Panel and Interior Switches Illumination - System Operation and Component Description. Description and Operation

Ford Fusion 2013–2020 Service Manual / Electrical / Instrumentation and Warning Systems / Instrument Panel and Interior Switches Illumination / Instrument Panel and Interior Switches Illumination - System Operation and Component Description. Description and Operation

System Operation

System Diagram

Ford Fusion. Instrument Panel and Interior Switches Illumination - System Operation and Component Description. Description and Operation
Item Description
1 FDIM
2 BCM
3 DDM
4 RDM
5 PDM
6 RDM
7 Headlamp Switch
8 Dimmable Components
9 GWM
10 Non-Dimmable Components
11 Non-Dimmable Components
12 Non-Dimmable Components
13 Non-Dimmable Components
14 Light Sensor
15 FCIM
16 APIM
17 ACM
18 IPC
19 GSM

Network Message Chart

  GSM, FCIM, IPC, ACM, RACM, APIM Network Input Messages


Broadcast Message Originating Module Message Purpose
Illumination dimming level   BCM Used to command the dimmable illumination level for networked modules.

  DDM, PDM Network Input Messages


Broadcast Message Originating Module Message Purpose
Ignition status   BCM Used to turn the non-dimmable illumination on or off for components wired to the DDM and the PDM.

Dimmable Illumination

The BCM sends 2 voltage signals to the headlamp switch, one for the brightness increase and the other for brightness decrease. The illumination dimming level is controlled by the BCM. Based on the input from the instrument panel dimmer switch (integral to the headlamp switch), the BCM calculates the dimming level.

When the autolamp feature activates during the daytime, the message center illumination remains at full intensity and does not dim from the instrument panel dimmer switch. If the vehicle travels under a bridge or through a tunnel and a low level of ambient light is detected, the illumination brightness of the message center changes to the last level set by BCM. The message center illumination changes back to full intensity when the intense ambient light is restored.

Wired Components

The BCM provides PWM voltage to the following components for backlighting:

NOTE: Some components are optional and are not equipped on every vehicle.

  • Headlamp switch
  • Steering wheel control switches
  • Overhead console
  • Hazard flasher switch
  • Heated seat switch (rear seats)
  • Parking brake switch
  • Front luggage compartment lid release switch
  • Ignition switch

Networked Message Components

The BCM sends the illumination brightness level message to the following modules:

NOTE: Some components are optional and are not equipped on every vehicle.

  • ACM
  • APIM
  • FCIM
  • GSM
  • IPC

The receiving modules use the illumination brightness level message to set the backlighting intensity of internal illumination sources. If a module does not receive the illumination brightness level message or the data received is deemed invalid, the module defaults to full nighttime intensity.

Additionally, if the IPC does not receive the ambient light level message from the BCM for up to 5 seconds, the IPC illumination remains at the last level based on the last message received.

Non-Dimmable Illumination

The non-dimmable illumination is on when the delayed accessory relay is active. The delayed accessory relay is active:

  • When the ignition is on.
  • For up to 10 minutes after the ignition is cycled from on to off and a front door is not opened.

The BCM sends the ignition status to the DDM and the PDM over the network. The DDM and the PDM relay that message to their respective RDM. Based on the ignition status, the DDM, the PDM and each RDM provide voltage to the following components

NOTE: Some components are optional and are not equipped on every vehicle.

DDM

  • Left front door lock control switch
  • Fuel filler door release switch

PDM

  • Door lock control switch
  • Window control switch

RDM

  • Window control switch

Component Description

Dimmer Switch

The dimmer switch is a momentary contact switch that is integral to the headlamp switch. The headlamp switch is monitored by the BCM. When the dimmer up or dimmer down button is pressed, the signal from the BCM is routed to ground indicating a request to increase or decrease the illumination brightness level.

BCM

The BCM is the master module in control of the backlighting system.

The BCM requires PMI when replaced. Additionally, carry out the parameter reset procedure and program at least 2 keys.

    Instrument Panel and Interior Switches Illumination - Overview. Description and Operation

    Overview Dimmable illumination provides backlighting to switches and control components when the parking lamps are on or a set level of intensity when the ignition is on for non-dimmable components...

    Instrument Panel and Interior Switches Illumination. Diagnosis and Testing

    DTC Charts Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...

    Other information:

    Ford Fusion 2013–2020 Service Manual: Intermediate Shaft Seal. Removal and Installation


    Special Tool(s) / General Equipment 205-907Handle, 32 DriverTKIT-2008DH-FLM 307-256 (T92P-77000-FH) Installer, Differential Fluid SealTKIT-1992-FLMH/LMH Puller Removal Remove the RH halfshaft. Refer to: Front Halfshaft RH (205-04 Front Drive Halfshafts, Removal and Installation)...

    Ford Fusion 2013–2020 Service Manual: Ignition Lock Cylinder Housing. Removal and Installation


    Removal   WARNING: Before beginning any service procedure in this section, refer to Safety Warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury. Follow the health and safety precautions...

    Categories

    Parallel Parking

    The system detects available parallel parking spaces and steers your vehicle into the space. You control the accelerator, gearshift and brakes. The system visually and audibly guides you into a parallel parking space.

    Ford Fusion. Parallel Parking Press the button once to search for a parking space.

    read more

    Copyright © 2024 www.fofusion2.com