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Diagnostic Information and Procedures: Symptoms-Horns: Notes

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Important:  The following steps must be completed before using the symptom tables.

  1. Perform DIAGNOSTIC SYSTEM CHECK-HORNS  before using the symptom tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The body control module (BCM) can communicate via the serial data link.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to HORNS SYSTEM DESCRIPTION AND OPERATION .
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