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Symptoms - Horns: Notes

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Important Preliminary Checks Before Starting:

  1. Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control modules can communicate via the serial data link.
  2. Review the horn operation or pedestrian alert sound system operation in order to familiarize yourself with the system functions. Refer to the following:
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