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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 267 (Supplemental Inflatable Restraint System - Except F150) >> Diagnostic Tests >> Test K: Passenger-Side Air Bag Deactivation (Pad) Warning Light Inoperative (DTC B1884) >> Possible Causes

Possible Causes

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An open or short to ground in PAD switch warning light circuit could be caused by an open or short to ground in Yellow/Light Green wire (circuit No. 1113), damaged or burned out PAD switch light bulb, damaged or inoperative PAD switch, damaged or inoperative RCM or blown PAD switch fuse (fuse No. 26, located in instrument panel fuse block).

  1. Check for hard or intermittent DTC

    Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). See USING SCAN TOOL  under DIAGNOSTICS. 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 B1884 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC B1884 was not retrieved, fault is intermittent. Go to step  5.

  2. Check PAD switch warning light voltage

    Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Access RCM and disconnect harness connector. See RESTRAINTS CONTROL MODULE (RCM)  under REMOVAL & INSTALLATION. Turn ignition switch to RUN position. Measure voltage between ground and harness side of RCM connector terminal No. 9 (Yellow/Light Green wire). See Figure. If voltage is 9-16 volts, replace RCM. Go to step  6. If voltage is not 9-16 volts, go to next step.

  3. Check circuit for short to ground

    Turn ignition switch to OFF position. Disconnect negative battery cable. Measure resistance between ground and RCM connector terminal No. 9 (Yellow/Light Green wire). If resistance is less than 1000 ohms, repair short to ground in Yellow/Light Green wire. See WIRING DIAGRAMS . Go to step  6. If resistance is more than 1000 ohms, go to next step.

  4. Check circuit for open

    Access PAD switch and disconnect harness connector. See PASSENGER-SIDE AIR BAG DEACTIVATION (PAD) SWITCH  under REMOVAL & INSTALLATION. Measure resistance between harness side of RCM connector terminal No. 9 and harness side of PAD switch connector terminal No. 3 (Yellow/Light Green wire). See Figure & Figure . If resistance is less than 10 ohms, replace PAD switch. Go to step  6. If resistance is more than 10 ohms, repair open in Yellow/Light Green wire. Go to step  6.

  5. 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 B1884 was retrieved during on-demand self-test, fault is hard. Go to step  2. If DTC B1884 was not retrieved, fault is intermittent. Check for cause of intermittent faults in Yellow/Light Green wire. See WIRING DIAGRAMS . Attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. Repair any intermittent problems found. Go to next step.

  6. 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.
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