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Home >> Saturn >> 2002 >> LW200 Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 274 (Cellular Communication System) >> Diagnostic Information and Procedures >> Symptoms - Cellular Communication >> Notes
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Symptoms - Cellular Communication: Notes

WARNING: This page is about a different car, the 2003 Saturn LW300, 2003 Saturn LW200, 2003 Saturn L300, and 2003 Saturn L200. 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 - Cellular Communication  before using the Symptom Tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control module can communicate via the serial data link.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to OnStar Description and Operation .
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