Section 33 (Air Bag Restraint System): Diagnosis: Self-Diagnostics: Procedure
WARNING: This page is about a different car, the 1995 Suzuki Swift and 1995 Geo Metro. However, it is still accessible from the selected car via links, so may be relevant.
SIR DIAGNOSTIC SYSTEM CHECK is always first step in diagnosing SIR system. See SIR DIAGNOSTIC SYSTEM CHECK under TESTING - DIAGNOSTIC. Purpose of this check is to verify that AIR BAG warning lamp is functioning properly and to read any DTCs that may be stored in SDM. Be sure to follow diagnostic procedures. Skipping steps could lead to unnecessary parts replacement, extended diagnosis time, and personal injury.