Possible Causes
A seat track position sensor short to battery circuit fault could be caused by damaged wiring, terminals or connectors 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 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 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 C310A. See RESTRAINTS CONTROL MODULE under REMOVAL & INSTALLATION. Disconnect left front seat floor connector C311. Turn ignition switch to RUN position. Measure voltage between ground and vehicle harness side of left front seat floor connector C311, terminal No. 5 (Light Green wire, circuit No. 1520). See Figure . Measure voltage between ground and vehicle harness side of left front seat floor connector C311, terminal No. 4 (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 6 . - Check circuit for short to battery in left front seat
Turn ignition switch to OFF position. Reconnect left front seat floor connector C311. Disconnect seat track position sensor connector. Turn ignition switch to RUN position. Measure voltage in Light Green wire between ground and harness side of seat track position sensor connector. Measure voltage in Tan/Black wire between ground and harness side of seat track position sensor connector. 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. 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 C310A. Turn ignition switch to RUN 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, fault is corrected. 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.