Possible Causes

A short to battery on PAD switch warning light circuit could be caused by an short to battery in Yellow/Light Green wire (circuit No. 1113), damaged or inoperative PAD switch or damaged or inoperative RCM.

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 B1890 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC B1890 was not retrieved, fault is intermittent. Go to step  4 .
2. Check PAD switch warning light
   
   Place PAD switch in OFF position. If PAD warning light illuminates properly, replace RCM. See RESTRAINTS CONTROL MODULE (RCM)  under REMOVAL & INSTALLATION. Go to step  5 . If PAD warning light does not illuminate properly, go to next step.
3. Check circuit for short to battery
   
   Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Access RCM and disconnect harness connector. See RESTRAINTS CONTROL MODULE (RCM)  under REMOVAL & INSTALLATION. Access PAD switch and disconnect connector. See PASSENGER-SIDE AIR BAG DEACTIVATE (PAD) SWITCH  under REMOVAL & INSTALLATION. Turn ignition switch to RUN position. Measure voltage between ground and RCM connector terminal No. 9 (Yellow/Light Green wire). See Figure . If voltage is more than 0.2 volt, repair short to battery in Yellow/Light Green wire. See WIRING DIAGRAMS  . Go to step  5 . If voltage is less than 0.2 volt, replace PAD switch. Go to step  5 .
4. Check for intermittent fault
   
   Refer to continuous DTCs recorded in step  1 . If DTC retrieved in step  1 was an intermittent fault, check for cause of intermittent short to battery in Yellow/Light Green wire (circuit No. 1113). See WIRING DIAGRAMS  . Attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. Repair any intermittent problems found. Go to next step. If DTC retrieved in step  1 was not an intermittent fault, go to next step.
5. 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. DO NOT clear any DTCs until all DTCs have been resolved. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION  table. If no continuous DTCs were retrieved, reconnect air bag system. Activate air bag system. See ACTIVATING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Perform system operation check. See SYSTEM OPERATION CHECK  . Clear all DTCs. See CLEARING FAULT CODES  under DIAGNOSTICS.