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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 B1914 - Impact Sensor Shorted To Ground

DTC B1914 - Impact Sensor Shorted 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 B1914 is retrieved, go to step 2). If DTC B1914 is not retrieved, go to step 5).

  2. Identify Shorted Circuit

    Deactivate air bag system. See COMPLETE SYSTEM DEACTIVATION under DISABLING & ACTIVATING AIR BAG SYSTEM . Disconnect diagnostic monitor. Using an ohmmeter set to 200k/ohm scale or Auto, measure resistance between terminal C1-18 and terminals C1-15, C1-16, C1-23 and C1-24 of diagnostic monitor connector. See Figure. If all resistance readings are infinite (open), replace diagnostic monitor. If one or more resistance reading is not infinite, go to next step).

  3. Determine If Sensor Or Wire Is Shorted

    Disconnect impact sensor where resistance reading was not infinite in step 2). Measure resistance between terminals of sensor connector. If resistance reading is infinite (open), go to next step. If resistance reading is not infinite, replace impact sensor. Reconnect system and go step 7).

  4. Check For Shorted Sensor Circuit

    Disconnect air bag diagnostic monitor. Using an ohmmeter connected to good ground, measure resistance at terminals C1-15, C1-16, C1-23 and C1-24 of diagnostic monitor connector. See Figure. If resistance is not infinite, repair circuit 619 (Pink/White wire), circuit 617 (Pink/Orange wire), 624 (Yellow/White wire), or 625 (Yellow/Light Green wire). Reconnect system. Verify system. Reactivate system, go to step 7). If resistance is infinite, repair short between circuit 619 (Pink/White wire), 625 (Yellow/Light Green wire), 620 (Pink/Light Blue wire), 617 (Pink/Orange wire), or 618 (Pink/Light Green wire). Reconnect system. Verify system. Reactivate system and go to step 7).

  5. Check For DTC Service

    Deactivate system. See COMPLETE SYSTEM DEACTIVATION . If DTC B1914 has just been repaired, check fuse 19 (10-amp). DO NOT  use substitutions. Reconnect system and go to step 7). If DTC B1914 has not just been repaired, go to next step.

  6. Check For Intermittent Shorts

    Inspect circuits 617 (Pink/Orange wire), 624 (Yellow/White wire), 619 (Pink/White wire) and 625 (Yellow/Light Green wire) for pinched or chafed wires or other problems. If problems are noted, replace impact sensor. Check fuse 19, go to step 7). If no problems are noted, reexamine fault code and look for causes of intermittent shorts or resistance to ground. Repair intermittent problems and go to next step.

  7. 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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