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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different car >> Section 244 (Supplemental Inflatable Restraint System - Air Bag Restraint System) >> Diagnostic Tests >> DTC B1913 - Air Bag Circuit Short To Ground

DTC B1913 - Air Bag Circuit Short To Ground

WARNING: This page is about a different car, the 1996 Ford Ranger and 1996 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Before proceeding, see SERVICE PRECAUTIONS . After servicing has been performed, recheck AIR BAG warning light. If system is okay, install air bag modules and reactivate air bag system.

  1. Verify Condition

    Connect NGS tester to DLC. Perform ON-DEMAND SELF-TEST. If DTC B1913 is retrieved, go to step 2). If DTC B1913 is not retrieved, go to step 11).

  2. Check For Shorted Air Bag

    Deactivate air bag system. See COMPLETE SYSTEM DEACTIVATION under DISABLING & ACTIVATING AIR BAG SYSTEM . Connect NGS to DLC. Turn ignition switch to RUN position and perform ON-DEMAND SELF-TEST. If DTC B1913 is retrieved, go to next step. If DTC B1913 is not retrieved, go to step 10).

  3. Check Driver-Side Air Bag Circuit

    Disconnect diagnostic monitor. Inspect clockspring wiring harness connector at base of steering column for damaged, chafed or pinched wires. Repair as necessary. If wiring is okay, measure resistance between terminals C1-2 (Gray/Orange wire) and C1-18 (Black/White wire) of diagnostic monitor connector. See Figure. If resistance not infinite, go to next step. If resistance is infinite, go to step 5).

  4. Check Circuit 614 For Short To Ground

    Disconnect clockspring at base of steering column. Use ohmmeter to check resistance between terminal C1-2 and ground. See Figure. If resistance is not infinite, repair circuit 614 (Gray/Orange wire) or circuit 615 (Gray/White wire) for short to ground. Reconnect system. Verify system. Reactivate system and go to step 15). If resistance is infinite, replace clockspring. Reconnect system. Verify system. Reactivate system and go to step 15).

  5. Check Passenger-Side Air Bag Module Circuits For Shorts

    Inspect wiring and connector where air bag module wiring mates to main vehicle harness. Check for pinched or chafed wires. Use ohmmeter to measure resistance of circuit 607 (Light Blue/Orange wire) to ground. Connect one lead to terminal C1-5 and one lead to terminal C1-18. See Figure. If resistance is not infinite, go to next step. If resistance is infinite, replace clockspring. Reconnect system. Verify system. Reactive system and go to step 7).

  6. Check Circuit 607 For Short To Ground

    Disconnect passenger side air bag simulator from main harness. Remove shorting bar from harness side connector. Use ohmmeter connected to good ground, connect other lead to terminal C1-5. See Figure. If resistance is not infinite, repair circuit 607 (Light Blue/Orange wire) for short to ground. Reconnect system. Verify system. Reactivate system and go to step 15). If resistance is infinite, repair circuit 616 (Pink/Black wire) for short top ground. Reconnect system. Verify system. Reactivate system and go to step 15).

  7. Check Impact Sensors

    Use ohmmeter connected to a good ground to measure resistance of terminal C1-15 and terminal C1-16. See Figure. If resistance is greater than 40k/ohms replace air bag diagnostic monitor. Reconnect system. Verify system and go to step 15. If resistance is less than 40k/ohms, go to next step.

  8. Check For Shorted Sensor

    Disconnect impact sensor that was less than 40k/ohms in step 7). Use ohmmeter to measure resistance across terminals of impact sensor connector. If resistance is infinite, go to next step. If resistance is not infinite, replace impact sensor, reconnect system and go to step 15.

  9. Check For Shored Sensor Circuit

    Disconnect air bag diagnostic monitor and use ohmmeter connected to good ground to check resistance of terminal C1-15 or terminal C1-16. See Figure. If resistance is not infinite, repair circuit 619 (Pink/White wire) or circuit 617 (Pink/Orange wire) for short to ground. Reconnect system. Verify system and go to step 15. If resistance is infinite, repair circuit 625 (Yellow/Light Green wire) or 624 (Yellow/White wire) for short to ground. Reconnect system. Verify system and go to step 15.

  10. Determine Which Bag is Shorted

    Disconnect air bag diagnostic monitor. Inspect wiring and connector where clockspring mates to main vehicle harness under steering column. Make sure shorting bar is properly installed in passenger side air bag connector.
    WARNING: Use a hand held digital ohmmeter with less than 10MA short circuit current on the lowest resistance scale possible (200 ohm setting). Failure to use a meter of this type may cause personal injury due to air bag deployment.

    Use ohmmeter to measure resistance between either of the terminals in passenger-side air bag connector and metal case of air bag module. If resistance is infinite (open), replace driver-side air bag module. Reconnect system and go to step 15. If resistance is not infinite (open), replace passenger-side air bag module. Reconnect system and go to step 15).

  11. Check For DTC Service

    Deactivate system. See COMPLETE SYSTEM DEACTIVATION . If DTC B1913 has just been repaired, check fuse 19 (10-amp). DO NOT  use substitutions. Reconnect system and go to step 15). If DTC B1913 has not just been repaired, go to next step.

  12. Check For Intermittent Shorts

    Inspect circuits 614 (Gray/Orange wire), 615 (Gray/White wire), 607 (Light Blue/Orange wire) and 616 (Pink/Black wire) for pinched or chafed wires or other problems. If problems are noted, repair wiring, check fuse 19, go to step 15). If no problems are noted, go to next step.

  13. Check Clockspring Contact

    Inspect clockspring wiring at harness connector. Inspect wiring in steering wheel hub. Inspect wiring where passenger-side air bag module mates to harness connector. If any problems are noted, repair problem, check fuse 19, reconnect system and go to step 15). If no problems are noted, go to next step.

  14. Check Impact Sensors

    Inspect impact sensors and associated circuits 617 (Pink/Orange wire), 624 (Yellow/White wire), 619 (Pink/White wire), and 625 (Yellow/Light Green wire). If problems are noted, replace impact sensor, check fuse 19, reconnect system and go to step 15. If no problems are noted, re-examine fault code and check for causes of intermittent shorts or resistance to ground. Repair intermittent problems and go to step 15).

  15. Check For Other DTCs

    Connect NGS to DLC. If other DTCs are retrieved go to proper DTC test. If no other DTCs are retrieved, reactivate system and clear all DTCs.
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