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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 496 (Horn System) >> Diagnostic Information and Procedures >> Horns Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Horn Test

  1. Ignition OFF, disconnect the harness connector at the appropriate P12 Horn.
  2. Install a 15 A fused jumper wire between the control terminal 1 and 12 V. Install a jumper wire between the ground terminal 1 and ground.
  3. Verify the P12 Horn turns ON and OFF
    • If the P12 Horn does not turn ON and OFF 

      Replace the P12 Horn.

    • If the P12 Horn turns ON and OFF 
  4. All OK

Horn Switch

  1. Ignition OFF, disconnect the harness connector at the S33 Horn Switch.
  2. Test for infinite resistance between the signal terminal 1 and the ground terminal 1 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S33 Horn Switch.

    • If infinite resistance 
  3. Test for less than 3 Ω between the signal terminal 1 and the ground terminal 1 with the switch in the closed position.
    • If 3 Ω or greater 

      Replace the S33 Horn Switch.

    • If less than 3 Ω 
  4. All OK.
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