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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Transfer Case - BW 4484) >> Diagnostic Information and Procedures >> Symptoms - Transfer Case >> Notes

Symptoms - Transfer Case: Notes

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  1. Perform the Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that the following statements are true:
    • There are no diagnostic trouble codes (DTCs) present.
    • The control module or 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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