VUE FWD L4-2.4L (2008)
Horn: Symptom Related Diagnostic Procedures
Symptoms - Horns
Symptoms - Horns
Important: The following steps must be completed before using the symptom tables:
1. Perform Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check
- Vehicle) , before using the symptom tables in order to verify that all of the following are true:
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There are no DTCs set
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The control modules can communicate via the serial data link
2. Review the system operation in order to familiarize yourself with the system functions. Refer to Horns System Description and Operation
(See: Description and Operation) .
Visual/Physical Inspection
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Inspect for aftermarket devices which could affect the operation of the horn system. Refer to Checking Aftermarket Accessories (See: Testing and
Inspection/Component Tests and General Diagnostics) .
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Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
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Perform the following if a horn buzzes or has a harsh tone.
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Inspect for debris in the joint where the horn fastens to the vehicle.
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Test the torque of the horn mounting hardware. The horn mounting hardware should be tightened to a torque of 10 N.m (7 lb ft).
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections (
See: Testing and Inspection/Component Tests and General Diagnostics) .
Symptom List
Refer to a symptom diagnostic procedure Horns Malfunction (See: Horns Malfunction) in order to diagnose the symptom.
Horns Malfunction
Horns Malfunction
Diagnostic Instructions
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Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
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Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
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Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure Instructions)
provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
