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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (Air Bag Restraint Systems) >> Diagnostic Tests >> Test H: Right PRETENSIONER Circuit Short To Battery (DTC B1882) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.

A right seat belt pretensioner circuit short to battery fault can be caused by damaged wiring, terminals or connectors, faulty right seat belt pretensioner or faulty RCM.

  1. Check for hard or intermittent DTC

    Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). 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 .
  2. Check right pretensioner

    Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Disconnect right seat belt pretensioner harness connector C303. Access RCM and disconnect harness connector C310B. See RESTRAINTS CONTROL MODULE (RCM)  under REMOVAL & INSTALLATION. Turn ignition switch to ON position. Measure voltage between ground and harness side of RCM connector terminal No. 6 (Yellow/Red wire). See Figure . Measure voltage between ground and harness side of RCM connector terminal No. 5 (Yellow/Black wire). If voltage is more than 0.2 volt in either circuit, repair short to battery in appropriate wire. See WIRING DIAGRAMS  . Go to step  5 . If voltage is less than 0.2 volt in both circuits, go to next step.
    NOTE: Ensure all air bag system simulators, sensor electrical connectors and RCM electrical connectors are connected prior to carrying out on-demand self-test, or erroneous faults may be set.
  3. Confirm RCM fault

    Turn ignition switch to OFF position. Reconnect right seat belt pretensioner harness connector C303. Reconnect RCM connector C310B. Turn ignition switch to ON position. Perform on-demand self-test. If DTC B1882 was retrieved during on-demand self-test, replace RCM. Go to step  5 . If DTC B1882 was not retrieved during on-demand self-test, fault is intermittent. Go to next step.
  4. 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 in Yellow/Red and Yellow/Black wires. See WIRING DIAGRAMS  . 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, attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. Repair any intermittent problems found. 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. 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.