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Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When performing inspection of past malfunction DTCs, additional DTCs may be recorded in system memory by removing or disconnecting related parts during diagnostic procedure. Inspect only DTCs that were recorded prior to inspection.
  1. Turn ignition to ON position. If AIR BAG warning light illuminates for about 6 seconds, then goes off, go to next step. If AIR BAG warning light does not illuminate, confirm malfunction symptom and diagnose appropriate AIR BAG warning light malfunction. See DIAGNOSTIC SYMPTOMS  table.
  2. Using scan tool, determine if present malfunction DTCs exist. See RETRIEVING DIAGNOSTIC TROUBLE CODES (DTCS)  . If present malfunction DTCs DO NOT exist, go to next step. If present malfunction DTCs do exist, perform appropriate diagnostic tests, one-by-one, starting with the smallest DTC. See FAULT CODE/FLASH CODE IDENTIFICATION  table. After completing all diagnostic tests, use scan tool to determine if any present malfunction DTCs still exist. Continue diagnostic tests until no present malfunction DTCs remain. Go to step  4 .
  3. Using scan tool, determine if past malfunction DTCs exist. If past malfunction DTCs DO NOT exist, diagnostic procedure is complete. If past malfunction DTCs do exist, shake related wiring harness. Using scan tool, determine if present malfunction DTCs now exist. If present malfunction DTCs exist, go to step  2 . If present malfunction DTCs DO NOT exist, perform appropriate diagnostic tests for past malfunction DTCs, one-by-one, starting with the smallest DTC. See FAULT CODE/FLASH CODE IDENTIFICATION  table. Go next step.
  4. Using scan tool, clear any stored DTCs in SAS control module. See CLEARING DIAGNOSTIC TROUBLE CODES (DTCS)  . After performing DTC clearing procedure, use scan tool to determine if any stored DTCs remain. Repeat clearing procedure until all stored DTCs are cleared from SAS control module memory.
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