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.
Open or short circuit in wiring harness between left side air bag and SAS control module, left side air bag malfunction or SAS control module malfunction.
- Inspect left side air bag
Using scan tool, inspect resistance for PID/DATA monitor DS-AB. See PID/DATA MONITOR & RECORD under DIAGNOSTICS. If resistance is 1.4-3.2 ohms and performing present malfunction diagnosis, replace SAS control module. See SAS CONTROL MODULE under REMOVAL & INSTALLATION. If resistance is 1.4-3.2 ohms and performing past malfunction diagnosis, test is complete. If resistance is not 1.4-3.2 ohms, go to next step. - Inspect left side air bag connector
Turn ignition switch to LOCK position. Disconnect negative battery cable and wait at least one minute. Disconnect left side air bag module harness connector and inspect connector. See SIDE AIR BAG MODULE under REMOVAL & INSTALLATION. If left side air bag module connector is damaged, replace air bag system wiring harness. If left side air bag module connector is not damaged, go to next step. - Isolate malfunction
Connect leads of 2 ohm resistor across terminals of left side air bag module 2-pin connector. Connect negative battery cable. Turn ignition switch to ON position. Retrieve Diagnostic Trouble Codes (DTCs). See RETRIEVING DIAGNOSTIC TROUBLE CODES (DTCS) under DIAGNOSTICS. If DTCs B1992, B1993, B1994 and/or B1995 are retrieved, go to next step. If DTCs B1992, B1993, B1994 and/or B1995 are not retrieved, replace left side air bag module. - Inspect SAS control module
Turn ignition switch to LOCK position. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Check circuits for short to ground, short to power or open circuit between SAS control module connector No. 2, terminal No. 2Y and left side air bag connector terminal "A", and SAS control module connector No. 2, terminal No. 2V and left side air bag connector terminal "B". See Figure & Fig 1 . If faults are found in circuits, replace air bag system wiring harness. If faults are not found in circuits, replace SAS control module.