Diagnostic Procedure
WARNING: This page is about a different car, the 2003 Suzuki XL-7 and 2003 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure ignition is off. Disable air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM . Disconnect right forward sensor connector. See FORWARD SENSORS under REMOVAL & INSTALLATION. Measure resistance across forward sensor terminals. See FORWARD SENSOR under COMPONENT TESTING. If resistance is 738-905 ohms, go to next step. If resistance is not 738-905 ohms, replace forward sensor.
- Disconnect SDM connector. See SENSING & DIAGNOSTIC MODULE (SDM) under REMOVAL & INSTALLATION. Measure resistance between SDM connector terminals No. 13 (Yellow/Green wire) and No. 14 (Yellow/Blue wire). See Figure. If resistance is infinite, go to next step. If resistance is not infinite, repair short between Yellow/Green wire and Yellow/Blue wire. See WIRE REPAIR .
- Turn ignition on. Measure voltage between ground and SDM connector terminals No. 13 (Yellow/Green wire) and No. 14 (Yellow/Blue wire). If voltage is less than one volt, substitute a known-good SDM and retest. If voltage is more than one volt, repair short to power in Yellow/Green wire or Yellow/Blue wire. See WIRE REPAIR . Reconnect all components. Activate air bag system. Using scan tool, clear DTC's. Go to AIR BAG DIAGNOSTIC SYSTEM CHECK under DIAGNOSTICS.