Possible Causes
WARNING: This page is about a different car, the 2004 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
No SAS control module configuration or SAS control module malfunction.
- Inspect SAS control module
Using scan tool, perform SAS control module configuration. See SAS CONTROL MODULE CONFIGURATION under REMOVAL & INSTALLATION. Retrieve Diagnostic Trouble Codes (DTCs). See RETRIEVING DIAGNOSTIC TROUBLE CODES (DTCS) under DIAGNOSTICS. If DTC B1921 is retrieved and performing present malfunction diagnosis, replace SAS control module. If DTC B1921 is not retrieved, test is complete.