Possible Causes

Open or short circuit in wiring harness between left side crash sensor and SAS control module, left side crash sensor malfunction or SAS control module malfunction.

1. Inspect left side crash sensor
   
   Using scan tool, inspect PID/DATA monitor OD-D-CRSH. See PID/DATA MONITOR & RECORD  under DIAGNOSTICS. If PID readings are normal and performing present malfunction diagnosis, replace SAS control module. See SAS CONTROL MODULE  under REMOVAL & INSTALLATION. If PID readings are normal and performing past malfunction diagnosis, test is complete. If readings are not normal, go to next step.
2. Inspect wiring harness between left side crash sensor & SAS control module
   
   Turn ignition to LOCK position. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Remove steering column cover and disconnect clockspring connector. Remove glove box and disconnect passenger-side air bag module connectors. Disconnect right and left side air bag module connectors. See SIDE AIR BAG MODULE  under REMOVAL & INSTALLATION. Disconnect right and left side curtain air bag module connectors. See SIDE CURTAIN AIR BAG MODULE  under REMOVAL & INSTALLATION. Remove right and left rear door lower trims and disconnect seat belt pretensioner connectors. See SEAT BELT PRETENSIONER  under REMOVAL & INSTALLATION. Partially peel back floor covering and disconnect all SAS control module connectors. Disconnect left side crash sensor. Measure for short to ground, short to power or open circuit between SAS control module connector No. 2, terminal No. 2Z and left side crash sensor connector terminal "A". See Figure & Figure . Measure for short to ground, short to power or open circuit between SAS control module connector No. 2, terminal No. 2AA and left side crash sensor connector terminal "B". If short to ground, short to power or open circuit is detected, replace wiring harness. If wiring harness is okay, replace left side crash sensor. See SIDE CRASH SENSOR  under REMOVAL & INSTALLATION.
3. Inspect SAS control module
   
   Turn ignition switch to LOCK position. Disable air bag system. Connect all SAS module connectors. Connect left side crash sensor connector. Connect negative battery cable. Retrieve Diagnostic Trouble Codes (DTCs). See RETRIEVING DIAGNOSTIC TROUBLE CODES (DTCS)  under DIAGNOSTICS. If DTC B2444 and/or U2017 are retrieved and performing present malfunction diagnosis, replace SAS control module. If DTC B2444 and/or U2017 are retrieved and performing past present malfunction diagnosis, test is complete. If DTC B2444 and/or U2017 are not retrieved, test is complete.