Possible Causes

A seat track position sensor short to ground circuit fault could be caused by damaged wiring, terminals or connectors or a faulty RCM.

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 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 C1947 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC C1947 was not retrieved, fault is intermittent. Go to step  5 .
2. Check circuits for short to ground
   
   Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. On models equipped with side air bag modules, ensure left front seat is removed from vehicle. On all models, access RCM and disconnect connector C310B. See RESTRAINTS CONTROL MODULE (RCM)  under REMOVAL & INSTALLATION. Disconnect seat position sensor harness connector. Measure resistance between ground and harness side of RCM connector C310B, terminal No. 23 (Light Green wire, circuit No. 1520). See Figure . Measure resistance between ground and harness side of RCM connector C310B, terminal No. 24 (Tan/Black wire, circuit No. 1558). If resistance is more than 10 k/ohms in both circuits, go to next step. If resistance is less than 10 k/ohms in either circuit, repair short to ground in appropriate wire. See WIRING DIAGRAMS  . Go to step  6 .
3. Check seat track position sensor
   
   Reconnect RCM connector C310B. Install known-good seat track position sensor. See SEAT TRACK POSITION SENSOR  under REMOVAL & INSTALLATION. On models equipped with side air bag modules, position left front seat in vehicle. On all models, turn ignition switch to ON position. Perform on-demand self-test. If DTC C1947 was retrieved during on-demand self-test, go to next step. If DTC C1947 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.
4. Confirm RCM Fault
   
   Turn ignition switch to OFF position. Reinstall original seat track position sensor. Turn ignition switch to ON position. Perform on-demand self-test. If DTC C1947 was retrieved during on-demand self-test, replace RCM. Go to step  6 . If DTC C1947 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 .
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 C1947 was retrieved during on-demand self-test, go to step  2 . If DTC C1947 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.
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 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.