Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY1996SABLE LS, 4D SEDAN, 3.0 SREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSAIR BAG, SRSSUPPLEMENTAL INFLATABLE RESTRAINT SYSTEMDIAGNOSTIC TESTSDTC B1914 - IMPACT SENSOR SHORTED TO GROUNDTESTPROCEDURE
1996 Mercury Sable LS, 4D Sedan, 3.0 S
DTC B1914 - Impact Sensor Shorted To Ground: TestProcedure
1996 Mercury Sable LS, 4D Sedan, 3.0 SSECTION TestProcedure
- 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). - 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). - 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). - 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 621 (White/Yellow 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). - Check For DTC Service
Deactivate system. See COMPLETE SYSTEM DEACTIVATION . If DTC B1914 has just been repaired, check fuse 13 (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. - 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 13, 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. - 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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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.