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Diagnostic System Check - SIR: Notes

WARNING: This page is about a different car, the 2004 Chevrolet Monte Carlo and 2004 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to SIR Special Tool Caution in Cautions and Notices.

These diagnostic procedures will help you to find and repair SIR system malfunctions. For best results, use the diagnostic tables and follow the sequence listed below:

  1. Refer to the diagnostic table as directed by a diagnostic system check - SIR. The diagnostic tables will help you to diagnose any SIR system malfunction. Bypassing these procedures may result in the following:
    • Extended Diagnostic Time
    • Incorrect Diagnosis
    • Incorrect Parts Replacement
  2. Repeat a diagnostic system check - SIR after you perform any repair or diagnostic procedures. This will verify that you correctly performed the repair. This will also ensure that no other malfunctions exist.
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