Lincoln Aviator: Horn / Description and Operation - Horn - System Operation and Component Description
System Operation
System Diagram- Vehicles Without Adaptive Steering
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| Item | Description |
|---|---|
| 1 | Clockspring |
| 2 | Horn switch |
| 3 | SCCM |
| 4 | BCM |
| 5 | BCMC |
| 6 | Horn |
Horn Operation - Vehicles Without Adaptive Steering
The horn switch consists of 2 sets of contacts separated by springs. The lower set is connected to ground and the upper set is connected to the horn signal circuit. When the driver airbag module is pressed, it pushes down on the upper set of contacts, collapsing the springs and allowing the contacts to touch. When the contacts touch, it completes the circuit and provides the ground signal which is routed through the clockspring, SCCM and then to the BCM. The BCM then energizes the non-servicable horn relay located in the BCMC. When energized, the horn relay provides voltage to the horn, enabling the horn to sound.
System Diagram- Vehicles With Adaptive Steering
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| Item | Description |
|---|---|
| 1 | BCM |
| 2 | Horn switch |
| 3 | Horn |
| 4 | BCMC |
| 5 | Clockspring |
Horn Operation - Vehicles With Adaptive Steering
The horn switch uses 2 sets of contacts separated by springs. The lower set is connected to ground and the upper set is connected to the horn signal circuit. When the driver airbag is pressed, it pushes down on the upper set of contacts, collapsing the springs and allowing the contacts to touch. When the contacts touch, it completes the circuit and provides a ground signal through the clockspring to the BCM horn input. The BCM then energizes the non-servicable horn relay located in the BCMC. When energized, the horn relay provides voltage to the horn, enabling the horn to sound.
Diagnosis and Testing - Horn
Diagnostic Trouble Code (DTC) Chart
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:
Lincoln Aviator 2020-2025 Service Manual: Description and Operation - Instrument Panel and Interior Switches Illumination - System Operation and Component Description
System Operation System Diagram - Networked Illumination - Doors NOTE: Not all vehicles come equipped with all the items listed below. The door latch modules are identified as follows: Left front door - DCME Right front door - DCMF Left rear door - DCMG Right rear door - DCMH Item Description 1 MS-CAN 2 DCME 3 Light sensor 4 DCMF 5 DCMH 6 DDM 7 PDM 8 RF door lock switch 9 RF door window control switch 10 LF door window control switch 11 RR door window control switch 12 LR door window control switch 13 LF door lock switch 14 RR door lock switch 15 LR door lock switch 16 GWM 17 DCMG 18 LH front interior door latch switch 19 RH front interior door latch switch 20 LH rear interior door latch switch 21 RH rear interior door latch switch 22 LIN 23 LIN 24 HS-CAN1 25 BCM 26 Dimmer switch 27 Headlamp switch System Diagram - Networked Illumination - Steering Wheel Switches Item Description 1 Light sensor 2 RH lower steering wheel switch 3 RH upper steering wheel switch 4 LH lower steering wheel switch 5 LH upper steering wheel switch 6 SIMA 7 Upshift paddle switch 8 Downshift paddle switch 9 HS-CAN2 10 GWM 11 HS-CAN1 12 LIN 13 BCM 14 Dimmer switch 15 Headlamp switch System Diagram - Networked Illumination - Other Modules Item Description 1 FCIM 2 APIM 3 Light sensor 4 ACM 5 IPC 6 FDIM 7 without Touchscreen 8 FCDIM 9 RHVAC 10 RACM 11 LIN 12 HS-CAN1 13 MS-CAN 14 HS-CAN3 15 GWM 16 Dimmer switch 17 Headlamp switch 18 BCM Network Message Chart Module Network Input Messages - ACM, APIM, DCME, DCMF, DCMG, DCMH, DDM, FCIM, RACM, RHVAC, SIMA, GWM, IPC and PDM...
Lincoln Aviator 2020-2025 Service Manual: Description and Operation - Communications Network - Overview
Overview Multiplexing is a method of sending 2 or more signals simultaneously over a single circuit. Multiplexing allows 2 or more electronic modules (nodes) to communicate over a twisted wire pair [data (+) and data (-)] network. The information or messages that can be communicated on these wires consists of commands, status or data...
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Activating Intelligent Access
The intelligent access key must be within 3 ft (1 m) of the door or luggage compartment you intend to lock or unlock.
At a Door
Electronic door handles are on each door. Gently depress the switch inside the exterior door handle to unlock and open the door. An unlock symbol illuminates on the door window trim indicating your vehicle is unlocked.
