Ford Fusion: Horn / Horn - System Operation and Component Description. Description and Operation

Ford Fusion 2013–2020 Service Manual / Electrical / Instrumentation and Warning Systems / Horn / Horn - System Operation and Component Description. Description and Operation

System Operation

System Diagram

Item	Description
1	BJB
2	Horn Relay
3	Horn Switch
4	Clockspring
5	SCCM
6	BCM
7	Horn

Horn Operation

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 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 to the SCCM and BCM. The BCM grounds the horn relay coil to energize the integrated relay in the BJB. When energized, the horn relay provides voltage to the horn, enabling the horn to sound.

Horn - Overview. Description and Operation

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Horn. Diagnosis and Testing

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:

Ford Fusion 2013–2020 Service Manual: Torque Converter Clutch (TCC). Diagnosis and Testing

For TCC operation, REFER to: Transmission Description - System Operation and Component Description (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Description and Operation). Symptom Chart Symptom Possible Sources Action TCC does not apply TCC solenoid filter screen blocked INSTALL a new TCC sol..

Ford Fusion 2013–2020 Service Manual: Active Grille Shutter Actuator. Removal and Installation

Removal Remove the active grille shutter. Refer to: Active Grille Shutter (501-02 Front End Body Panels, Removal and Installation). Release the vanes from the active grille shutter. Remove the vanes. Remove the vane linkage. Remove the clip. Remov..

Power Door Locks

The power door lock control is on the driver and front passenger door panels.

Ford Fusion. Power Door Locks

Unlock. Lock.