Possible Causes

Low resistance in driver-side air bag circuits can be caused by damaged shorting bar on ECS module connector or driver-side air bag connector, short in clockspring windings, short in wiring harness or short in driver-side air bag module.

1. Check for hard or intermittent DTC
   
   Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). See USING SCAN TOOL  under DIAGNOSTICS. Turn ignition switch to RUN position. Retrieve and record any continuous DTCs. See RETRIEVING FAULT CODES  under DIAGNOSTICS. Perform on-demand self-test. See ON-DEMAND SELF-TEST  under DIAGNOSTICS. If DTC B1887 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC B1887 was not retrieved, fault is intermittent. Go to step  6 .
2. Check driver-side air bag circuit resistance
   
   Using scan tool, select PID/Data Monitor and Record. Select PID DABAGR. If resistance is less than 1.8 ohms, go to next step. If resistance is more than 1.8 ohms, replace ECS module. See ELECTRONIC CRASH SENSOR (ECS) MODULE  under REMOVAL & INSTALLATION. Go to step  7 .
3. Check driver-side air bag module
   
   Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Turn ignition switch to RUN position and perform on-demand self-test. See ON-DEMAND SELF-TEST  under DIAGNOSTICS. If DTC B1887 is received, go to next step. If DTC B1887 is not received, replace driver-side air bag module. See DRIVER-SIDE AIR BAG MODULE  under REMOVAL & INSTALLATION. Go to step  7 .
4. Check clockspring
   
   Turn ignition switch to OFF position. Disconnect driver-side air bag simulator. Access and disconnect lower clockspring connector. See CLOCKSPRING  under REMOVAL & INSTALLATION. Carefully remove shorting bar from lower clockspring connector. Zero ohmmeter. Measure resistance between Gray/Orange wire (circuit No. 614) and Gray/White wire (circuit No. 615) on harness side of upper clockspring connector. If resistance is more than 1000 ohms, go to next step. If resistance is less than 1000 ohms, replace clockspring. See CLOCKSPRING  under REMOVAL & INSTALLATION. Go to step  7 .
5. Check driver-side air bag circuit
   
   Access and disconnect ECS module harness connector. See ELECTRONIC CRASH SENSOR (ECS) MODULE  under REMOVAL & INSTALLATION. Carefully remove shorting bar from ECS module connector terminals No. 1 and 15. See Figure . Measure resistance between Gray/Orange wire and Gray/White wire on ECS side of lower clockspring harness connector. If resistance is less than 10 ohms, repair short between Gray/Orange and Gray/White wires. See WIRING DIAGRAMS  . Go to step  7 . If resistance is more than 10 ohms, replace ECS module. Go to step  7 .
6. Check for intermittent fault
   
   Refer to continuous DTCs recorded in step  1 . If DTC retrieved in step  1 was an intermittent fault, check for causes of intermittent low resistance in Gray/Orange wire (circuit No. 614) or Gray/White wire (circuit No. 615). See WIRING DIAGRAMS  . Attempt to recreate fault by flexing wire harness and cycling ignition key frequently. Repair any intermittent problems. Go to next step. If no intermittent problems are found, go to next step.
7. Check for additional DTCs
   
   Refer to continuous DTCs recorded in step  1 . If any continuous DTCs were retrieved, go to diagnostic trouble code identification table for direction to appropriate test. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION  table. DO NOT clear any DTCs until all DTCs have been resolved. If no continuous DTCs were retrieved, reconnect air bag system. Activate air bag system. See ACTIVATING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Clear all DTCs. See CLEARING FAULT CODES  under DIAGNOSTICS.