Ford Escape: Horn / Description and Operation - Horn - System Operation and Component Description
System Operation
System Diagram
E341593
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1
Horns
2
Horn
Switch
3
BCM-C
4
BCM
5
SCCM
6
Clockspring
Item |
Description |
1 |
Horns |
2 |
Horn Switch |
3 |
BCM-C |
4 |
BCM |
5 |
SCCM |
6 |
Clockspring |
Horn Operation
The horn switch uses 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 grounds the integrated horn relay coil in the BCMC
to energize the non-serviceable relay. When energized, the horn relay
provides voltage to the horn, enabling the horn to sound.
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:
System Operation
Rear Only Parking Aid Camera
System Diagram
Item
Description
1
PAM
2
ABS module
3
PSCM
4
GWM
5
BCM
6
PCM
7
TRM
8
Rear parking aid camera
9
video signal
10
APIM
11
Audio system display
Network Message Chart
BCM Network Input Mess..
Remotely Starting the Vehicle
Press the button on the remote
control.
Within three seconds, press the
button twice on the remote
control.
Note: You can also use the FordPass App
to start the vehicle.
Note: The turn signals flash twice.
Note: The parking lamps turn on when the
vehicle is running.
Note: The horn sounds if the system fails
to start.
Note: All other vehicle systems remain off ..