Specifications
Horn Replacement
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement.
Caution: Refer to Fastener Caution in the Preface section.
Tighten 17 N·m (13 lb ft)
Tip Disconnect electrical connectors.
Steering Wheel Horn Contact Replacement
Preliminary Procedure
Remove inflatable restraint steering wheel module. Refer to Steering Wheel Inflatable Restraint Module Replacement.
Caution: Refer to Fastener Caution in the Preface section.
Tighten 5.5 N·m (49 lb in)
Tip
Disconnect the electrical connector.
Horn System Description and Operation
System Description
The horn system consists of the following components:
System Operation
The vehicle horn is activated whenever the horn switch is depressed.
The BCM commands the horns ON under any of the following conditions:
Circuit Operation
The BCM controls the horn operation, when the horn switch is pressed, it closes a switch pulling the horn signal circuit low. When the BCM detects the drop in voltage in the horn switch signal circuit, it energizes the PCB Horn relay which provides B+ voltage to the horn control circuit, sounding the horn.
When the vehicle is in the Off Power Mode the BCM will attempt to detect a stuck or continuously activated horn switch. When enabled, activation of the horn will be limited to 10 seconds to protect the horn from excessive use.
Service
This vehicle may have the new environmentally friendly refrigerant, R1234yf.
This refrigerant has a significantly reduced global warming impact on the environment,
compared to the traditional automotive refrigerant, R-134a. All vehicles have a
label underhood that identifies the refrigerant us ...
Steering Wheel and Column Description and Operation
The steering wheel and column has 4 primary functions:
Vehicle steering
Vehicle security
Driver convenience
Driver safety
Vehicle Steering
The steering wheel is the first link between the driver and the vehicle. The
steering wheel is fastened to a steering shaft within the
column. A ...
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Collision Sectioning Warning in the Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.
Disable the SIR System. Refer to SIR Dis ...