Escape 4WD L4-2.5L Hybrid (2009)
Horn: Initial Inspection and Diagnostic Overview
Special Tools Used With Diagnostics
Horn
Inspection and Verification
Horn
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Principles of Operation
Horn
Principles of Operation
NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).
The SJB supplies the control voltage to the horn relay (part of the SJB). When the horn switch (part of the steering wheel) is pressed, ground is supplied
to the horn relay sending voltage to the horn, enabling the horn to sound.
The SJB provides a momentary on then off ground when the panic button is pressed on the Integrated Keyhead Transmitter (IKT).
