INTRODUCTION
ARROWS AND SYMBOLS
This service manual uses various symbols in order to describe different
service operations.
Fig. 1: Identifying Different Service Operations Symbols
ACRONYMS AND U
HORNS SYSTEM DESCRIPTION AND OPERATION
System Description
The horn system consists of the following components:
HORN fuse
Underhood fuse block (contains PCB horn relay)
Horn switch
Horn-low note
Horn-high note
Body control module (BCM)
14 Horns Block Diagram
Fig. 6: 14 Horns Block Diagram
Test Description
The numbers below refer to the step numbers on the diagnostic table:
2
This test will determine the effect of turning input on the vibration.
6
This test will determine the effect of an initial heavy torque load on the
vibration.
7
Damaged or worn wheel drive shafts may cause a noi