Diagnostic Procedure
- Turn ignition off. Remove and inspect AIR BAG fuse located in under-dash fuse box. If fuse is okay, go to next step. If fuse is blown, repair short to ground in Blue-Red wire between AIR BAG fuse and SDM harness connector. See WIRING DIAGRAMS . Replace AIR BAG fuse.
- Disconnect SDM connector. See SENSING & DIAGNOSTIC MODULE (SDM) under REMOVAL & INSTALLATION. Inspect SDM connector for proper connection. See Figure. Secure connector as necessary. If connector is secured, disconnect SDM connector. Turn ignition on. Measure voltage between ground and SDM harness connector terminal No. 4 (Blue-Red wire). See Fig 1. If voltage is 8 volts or more, go to next step. If voltage is less than 8 volts, repair open or short in Blue-Red wire between SDM connector and AIR BAG fuse.
- Turn ignition off. Remove instrument cluster and disconnect 16-pin connector. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. Measure resistance between ground and SDM harness connector terminal No. 2 (Blue wire). If circuit is open, substitute a known-good SDM and retest. If circuit is not open, repair short to ground in Blue wire between SDM and instrument cluster connector. Reconnect all components. Clear DTCs. See DIAGNOSTICS . Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK .
Courtesy of SUZUKI OF AMERICA CORP.