Visual/Physical Inspection
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Several of the symptom procedures ask for a careful visual/physical inspection. This step is extremely important, it could lead to correcting a problem without further checks and can save valuable time. These checks include the following:
- Inspect for aftermarket devices which could affect the operation of the Horn System. Refer to CHECKING AFTERMARKET ACCESSORIES .
- Inspect the easily accessible or visible system components and harness connectors for obvious damage or conditions which could cause the symptom.
- Perform the following if the horns buzz or have a harsh tone:
- Inspect for debris in the joints where the horns fasten to the vehicle.
- 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).
NOTE:
Refer to FASTENER NOTICE
.