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

Ford Fiesta 2014 - 2019 Service Manual / Instrumentation and Warning Systems / Horn / Horn - System Operation and Component Description. Description and Operation

System Operation

System Diagram

Item	Description
1	Horn
2	Driver Airbag
3	Horn Switch
4	Clockspring
5	BCM

Horn Operation

The horn switch consists of a set of contacts separated by springs. One side is connected to ground and the other side is connected to the horn signal circuit. When the driver airbag is pressed, it pushes down on the switch, collapsing the springs and allowing the contacts to touch. When the contacts touch, it closes the circuit through the clockspring to the BCM , and provides a ground signal to the BCM . The BCM then provides voltage to the horn, enabling the horn to sound.

Horn - Component Location. Description and Operation

Horn. Diagnosis and Testing

DTC Chart(s) DTC Chart: Horn 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 Fiesta 2014 - 2019 Service Manual: Instrument Panel Cluster (IPC) - Overview. Description and Operation

Overview Item Description 1 Left turn signal indicator 2 Door ajar indicator 3 Grade assist indicator 4 TPMS warning indicator 5 Tachometer 6 Powertrain malfunction (wrench)/service warning indicator 7 ABS warning indicator 8 Integrated LCD 9 Charging system warning indicato..

Ford Fiesta 2014 - 2019 Service Manual: A-Pillar Outer Panel. Removal and Installation

Special Tool(s) / General Equipment Resistance Spotwelding Equipment Hot Air Gun Air Body Saw 8 mm Drill Bit MIG/MAG Welding Equipment Spot Weld Drill Bit Materials Name Specification Metal Bonding AdhesiveTA-1, TA-1-B, 3M™ 08115, LORD Fusor® 108B, Henkel Teroson EP 5055 - Seam SealerTA-2-B, 3M™ 08308, ..

Wheels and Tires. Diagnosis and Testing

Preliminary Inspection

Verify the customer concern by carrying out a road test on a smooth road. If any vibrations are apparent, Refer to the Symptom Chart: NVH.
To maximize tire performance, inspect for signs of incorrect inflation and uneven wear, which may indicate a need for balancing, rotation or front suspension alignment.
Correct tire pressure and driving techniques have an important influence on tire life. Heavy cornering, excessively rapid acceleration and unnecessary sharp braking increase tire wear.

Correct tire pressure and driving techniques have an important influence on tire life. Heavy cornering, exce