Possible Causes
WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
A right seat belt pretensioner circuit short to battery or ignition fault can be caused by short to battery or ignition in Yellow/Red wire (circuit No. 1081), short to battery or ignition in Yellow/Black wire (circuit No. 1082), short to battery or ignition in right seat belt pretensioner or faulty RCM.
- 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 B1882 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC B1882 was not retrieved, fault is intermittent. Go to step 4. - Check right pretensioner
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. Perform on-demand self-test. If DTC B1882 was retrieved during on-demand self-test, go to next step. If DTC B1882 was not retrieved, replace right seat belt pretensioner. See SEAT BELT PRETENSIONERS under REMOVAL & INSTALLATION. Go to step 5. - Check right pretensioner circuits
Turn ignition switch to OFF position. Access RCM and disconnect harness connector. See RESTRAINTS CONTROL MODULE (RCM) under REMOVAL & INSTALLATION. Remove right pretensioner simulator from harness connector. Measure voltage between ground and harness side of RCM connector terminal No. 15 (Yellow/Red wire). See Figure. Measure voltage between ground and harness side of RCM connector terminal No.16 (Yellow/Black wire). If voltage is more than 0.2 volt in either circuit, repair short to battery or ignition in appropriate wire. See WIRING DIAGRAMS . Go to step 5. If voltage is less than 0.2 volt in both circuits, replace RCM. Go to step 5. - Check for intermittent fault
Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Perform on-demand self-test. If DTC B1882 was retrieved during on-demand self-test, check for cause of intermittent faults at or near right seat belt pretensioner harness connector. Repair any intermittent faults found. If intermittent faults are found and corrected, go to next step. If intermittent faults are not found, go to step 2. If DTC B1882 was not retrieved during on-demand self-test, fault is intermittent. Check for cause of intermittent short to battery or ignition in Yellow/Red and/or Yellow/Black wire(s). 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. - 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.