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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Horn System) >> Diagnostic Information and Procedures >> Horns Malfunction (Trax) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool Horn Switch parameter changes between Active and Inactive when pressing and releasing the horn pad.
    • If the parameter does not change 

      Refer to Circuit/System Testing - Horn Switch Malfunction.

    • If the parameter changes 
  3. Verify the P12 Horn turns ON and OFF and emits a clear and even tone when commanding the Horn Relay On and Off with a scan tool.
    • If the P12 Horn does not turn ON and OFF 

      Refer to Circuit/System Testing - Horns or Horn Command Malfunction.

    • If the sound emitted is not clear and even 

      Refer to Circuit/System Testing - Horn - Poor Tone.

    • If the P12 Horn turns ON and OFF and emit a even and clear tone 
  4. All OK.
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