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Symptom: *HORN FAILS TO SOUND DURING ALARM POSSIBLE CAUSES HORN RELAY CONTROL CIRCUIT OPEN REMOTE KEYLESS ENTRY MODULE TEST ACTION APPLICABILITY 1 Ensure the horn is operational from the horn switch before proceeding. If the horn All Yes → Replace the Remote Keyless Entry Module. Perform VTSS VERIFICATION TEST - 1A. No → Repair the Horn Relay Control circuit for an open. Perform VTSS VERIFICATION TEST - 1A. 218 VEHICLE THEFT/SECURITY |