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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 334 (Antilock Brake System - Non-Hybrid Less Than 3900 Kg (8600 Lb) GVW) >> Diagnostic Information and Procedures >> Symptoms - Antilock Brake System >> Notes

Symptoms - Antilock Brake System: Notes

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IMPORTANT:

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

  1. Perform the ABS Diagnostic System Check before using the symptom tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control modules can communicate via the serial data link.
  2. Review the system description and operation in order to familiarize yourself with the system functions. Refer to ABS Description and Operation .