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Test E: Security Indicator Light Inoperative

  1. If vehicle theft deterrent diagnostic system test has been performed, go to next step. If vehicle theft deterrent diagnostic system test has not been performed, go to VEHICLE THEFT DETERRENT DIAGNOSTIC SYSTEM TEST  under SELF-DIAGNOSTICS.
  2. Connect scan tool to Data Link Connector (DLC). DLC is located at lower left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, command SECURITY indicator light on. If SECURITY indicator light does not illuminate, go to next step. If SECURITY indicator light illuminates, perform this procedure while wiggling related wiring and connectors. This can often cause malfunction to appear.
  3. Disconnect Body Control Module (BCM) 24-pin Light Blue harness connector C2. BCM is located behind left side of instrument panel. Connect a 3-amp fused jumper wire between ground and BCM harness connector terminal B9 (Gray wire). See Figure . If SECURITY indicator illuminates, go to step  6 .
  4. Check for open or short to voltage in Gray wire between BCM harness connector C2 terminal B9 and Instrument Panel Cluster (IPC). If problem is not found, go to next step. If problem is found, repair Gray wire as necessary. After repairs, go to step  9 .
  5. Disconnect IPC 12-pin harness connector, located behind center of instrument cluster. Check for poor connections and loose or corroded terminals at IPC harness connector. If problem is not found, go to step  7 . If problem is found, repair as necessary. After repairs, go to step  9 .
  6. Check for poor connections and loose or corroded terminals at BCM harness connectors. If problem is not found, go to step  8 . If problem is found, repair as necessary. After repairs, go to step  9 .
  7. Replace IPC. See ANALOG INSTRUMENT PANELS article. For 2002, see ANALOG INSTRUMENT PANELS article. After repairs, go to step  9 .
  8. Replace and program BCM. See BODY CONTROL MODULE  under REMOVAL & INSTALLATION. See BODY CONTROL MODULE PROGRAMMING/REGULAR PRODUCTION OPTION CONFIGURATION  under PROGRAMMING.
  9. Operate system in order to verify repair. If condition has been corrected, system is okay. If condition has not been corrected, go to step  3 .
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