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Home >> Cadillac >> 2006 >> STS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Horn System) >> Diagnostic Information and Procedures >> Horns - Poor Tone >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, remove the horn assembly.
  2. Test for a high resistance on the horn control circuit.
  3. If all circuits test normal, test or replace the horn assembly.
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