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Home >> Buick >> 2003 >> LeSabre Custom, 4T65E/MN3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 641 (Electronic Suspension System - Automatic Level Control) >> Diagnostic Information And Procedures >> Symptoms - Automatic Level Control >> Notes
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Symptoms - Automatic Level Control: Notes

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. Perform the Diagnostic System Check - Automatic Level Control  before using the Symptom Tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control module(s) can communicate via the serial data link.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to Automatic Level Control Description and Operation .
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