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DTC B1923 - Memory Clear Circuit Improperly Grounded

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 B1923 is retrieved, go to step 2). If DTC B1923 is not retrieved, go to step 5).

  2. Check If Circuit 631 Is Connected

    If terminal C1-17 of air bag diagnostic monitor has wire connected, go to next step. See Figure. If it does not, go to step 7).

  3. Check If Circuit Is Correct Color

    Deactivate air bag system. See COMPLETE SYSTEM DEACTIVATION under DISABLING & ACTIVATING AIR BAG SYSTEM . Disconnect diagnostic monitor. See Figure. Verify terminal C1-17 is a Tan/Red wire. If it is, go to next step. If it is not, verify and correct harness pin out. Reconnect system. Verify system and go to step 7).

  4. Measure Resistance

    Use ohmmeter set to 200K ohms scale or AUTO. Measure resistance between diagnostic monitor harness connector terminal C1-17 and terminal C1-18. See Figure. If resistance is infinite, replace air bag diagnostic monitor. Reconnect system. Verify system. Reactivate system and go to step 7). If resistance is not infinite, repair short to ground on circuit 631 (Tan/Red wire). Reconnect air bag diagnostic monitor. Go to step 7).

  5. Check For DTC Service

    Deactivate system. See COMPLETE SYSTEM DEACTIVATION . If DTC B1923 has just been repaired, go to step 7). If DTC B1923 has not just been repaired, go to next step.

  6. Check For Steering Column Shorts

    Inspect circuit 631 (Tan/Red wire) for pinched or chafed wires leading to intermittent short to ground. If problems are noted, repair as necessary and go to step 7). If no problems are noted, 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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