Possible Causes
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
A seat track position sensor short to battery circuit fault could be caused by damaged wiring, terminals or connectors, faulty seat track position sensor or a faulty RCM.
- 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 ON 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 C1982 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC C1982 was not retrieved, fault is intermittent. Go to step 5 . - Check circuit for short to battery between left front seat & RCM
Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Access RCM and disconnect connector C310B. See RESTRAINTS CONTROL MODULE (RCM) under REMOVAL & INSTALLATION. Turn ignition switch to ON position. Measure voltage between ground and harness side of RCM connector C310B, terminal No. 23 (Light Green wire, circuit No. 1520). See Figure . Measure voltage between ground and harness side of RCM connector C310B, terminal No. 24 (Tan/Black wire, circuit No. 1558). If voltage is less than 0.2 volt in both circuits, go to next step. If voltage is more than 0.2 volt in either circuit, repair short to battery in appropriate wire. See WIRING DIAGRAMS . Go to step 5 . - Check seat track position sensor
Reconnect RCM connector C310B. Install known-good seat track position sensor. See SEAT TRACK POSITION SENSOR under REMOVAL & INSTALLATION. Turn ignition switch to ON position. Perform on-demand self-test. If DTC C1982 was retrieved during on-demand self-test, go to next step. If DTC C1982 was not retrieved, attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. Activate other systems in same wire harness. Repair any intermittent problems found. Go to step 6 .NOTE: Ensure all air bag system simulators, sensor electrical connectors and RCM electrical connectors are connected prior to carrying out on-demand self-test or erroneous faults may be set. - Confirm RCM fault
Turn ignition switch to OFF position. Reconnect RCM connector C310B. Turn ignition switch to ON position. Perform on-demand self-test. If DTC C1982 was retrieved during on-demand self-test, replace RCM. Go to step 6 . If DTC C1982 was not retrieved during on-demand self-test, attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. Activate other systems in same wire harness. Repair any intermittent problems found. Go to step 6 . - 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 C1982 was retrieved during on-demand self-test, go to step 2 . If DTC C1982 was not retrieved during on-demand self-test, check for cause of intermittent fault. Attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. Repair any intermittent problems found. Go to next step. - 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 IDENTIFICATION table. DO NOT clear any DTCs until all DTCs have been resolved. If no 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.