SPECIFICATIONS
Torque Specifications
DESCRIPTION AND OPERATION
Horn
Component Location
Overview
The horn emits an audible tone when the driver air bag module is pressed. The horn output is controlled by a relay, which is integral to the BCM.
System Operation
System Diagram
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 air bag 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, the SCCM and then to the horn relay, which is integral to the BCM.
The BCM supplies the control and switched (load) voltage to the horn relay. When energized, the horn relay provides voltage to the horn, enabling the horn to sound.
DIAGNOSIS AND TESTING
Horn
Symptom Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.
Pinpoint Tests
Pinpoint Test A: The Horn Is Inoperative
Diagnostic Overview
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.
Normal Operation and Fault Conditions
REFER to Horn.
-
Possible Sources
- Fuse
- Wiring, terminals or connectors
- Steering wheel harness
- Horn
- Clockspring
- Horn switch (part of the steering wheel)
- BCM
- SCCM
Visual Inspection and Diagnostic Pre-checks
Inspect the BCM fuse 22 (20A).
PINPOINT TEST A: THE HORN IS INOPERATIVE
Pinpoint Test B: The Horn Is Always On
Diagnostic Overview
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.
Normal Operation and Fault Conditions
REFER to Horn.
-
Possible Sources
- Wiring, terminals or connectors
- Steering wheel harness
- Clockspring
- Horn switch (part of the steering wheel)
- BCM
- SCCM
PINPOINT TEST B: THE HORN IS ALWAYS ON
REMOVAL AND INSTALLATION
Horn
Removal and Installation
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02.
- NOTE: The horn and bracket are installed as an assembly.
Remove the bolt and the horn.
- Disconnect the electrical connector.
- To install, tighten to 12 Nm (106 lb-in).
- To install, reverse the removal procedure.
General Procedures, Removal and Installation
GENERAL PROCEDURES
Belt-Minder Deactivating/Activating
NOTE: If you are using MyKey, the Belt-Minder cannot be disabled. If
the Belt-Minder has been previously disabled, it is re-enabled during ...
Parking Aid - Audible
SPECIFICATIONS
General Specifications
DESCRIPTION AND OPERATION
Parking Aid
Component Location
Parking aid speaker
PAM
Parking aid sensors
Overview
The parking aid system sounds a warning to al ...
Other materials:
Engine coolant check
Checking the Engine Coolant
The concentration and level of engine coolant should be checked at the
intervals listed in Scheduled Maintenance Information.
Note: Make sure that the level is at the FULL COLD level or within the
COLD FILL RANGE in the coolant reservoir.
Note: Coolant expands wh ...
Interior luggage compartment release
WARNING: Keep vehicle doors and luggage compartment locked
and keep keys and remote transmitters out of a child’s reach.
Unsupervised children could lock themselves in the trunk and risk
injury. Children should be taught not to play in vehicles.
WARNING: Do not leave children, unreliable adu ...
General Procedures
Brake Shift Interlock Override - Floor Shift
NOTE: If it is necessary to use the override procedure to move
the selector lever out of the PARK position, it is possible that a fuse has
blown. GO to Pinpoint Test A.
This vehicle is equipped with a brake shift interlock feature that prevent ...
