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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1204 (Horn System) >> Diagnostic Information and Procedures >> Horns Always On >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The number(s) below refer to the step number(s) on the diagnostic table.

  1. Tests if ground is constantly being applied to the horn relay.
  2. The horn relay control circuit includes the horn slip ring and the horn switch. The horn slip ring and the horn switch must be tested for a short to ground when testing the relay control circuit. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
Fig 1: Horns Always On
G01454057Courtesy of GENERAL MOTORS CORP.