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Symptoms - Transfer Case: Notes

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. 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 - TRANSFER CASE  before using the Symptom Tables in order to verify that all of the following are true:
    • DTCs are not set.
    • The control modules can communicate via the serial data link.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to TRANSFER CASE DESCRIPTION AND OPERATION  .
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