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Test G: Driver Information Center Switch Inoperative

  1. If instrument panel cluster diagnostic system check has been performed, go to next step. If instrument panel cluster diagnostic system check has not been performed, go to INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). DLC is located under left side of instrument panel. Turn ignition switch to RUN position. Using scan tool, observe Driver Information Center (DIC) switch parameters in Instrument Panel Cluster (IPC) inputs data list. Press and release DIC switches. Switch parameter should read ON when switch is pressed, and OFF when released. If parameter is not as specified, go to next step. If parameter is as specified, concern may be intermittent. For aid in diagnosing intermittent problems, see PROBLEM DIAGNOSIS  under INTERMITTENTS.
  3. If switch parameter does not display OFF when switch is pressed, go to next step. If switch parameter displays OFF when switch is pressed, go to step  9.
  4. If switch parameter continuously displays ON, even with switch released, go to next step. If switch parameter does not continuously display ON, even with switch released, go to step  6.
  5. Turn ignition switch to OFF position. Disconnect DIC switch 6-pin harness connector. DIC switch is located on instrument panel cluster. Turn ignition switch to RUN position. Using scan tool, observe DIC switch parameter in IPC inputs data list. If switch parameter displays ON for suspect switch, go to step  7. If switch parameter does not display ON for suspect switch, go to step  12.
  6. Turn ignition switch to OFF position. Disconnect DIC switch 6-pin harness connector. DIC switch is located on instrument panel cluster. Connect a fused (3 amp) jumper wire between ground and signal circuit of suspect DIC switch. See WIRING DIAGRAMS . Turn ignition switch to RUN position. Using scan tool, observe DIC switch parameter in IPC inputs data list. If switch parameter displays ON for suspect switch, go to step  10. If switch parameter does not display ON for suspect switch, go to step  8.
  7. Check for short to ground in signal circuit of suspect DIC switch. See WIRING DIAGRAMS . If problem exists, repair as necessary and go to step  14. If no problem exists, go to step  11.
  8. Check for open or high resistance in signal circuit of suspect DIC switch. See WIRING DIAGRAMS . If problem exists, repair as necessary and go to step  14. If no problem exists, go to step  11.
  9. Check for open or high resistance in ground circuit of suspect DIC switch. Ground point is located under left side of instrument panel on cross beam between parking brake assembly and steering column. See WIRING DIAGRAMS . If no problem exists, go to next step. If problem exists, repair as necessary and go to step  14.
  10. Check for poor, loose or corroded terminals in DIC switch harness connector. If problem exists, repair as necessary and go to step  14. If no problem exists, go to step  12.
  11. Check for poor, loose or corroded terminals in IPC harness connector. If problem exists, repair as necessary and go to step  14. If no problem exists, go to step  13.
  12. Replace DIC switch. See DRIVER INFORMATION CENTER SWITCH  under REMOVAL & INSTALLATION. After repairs are made, go to step  14.
  13. Replace IPC. See INSTRUMENT PANEL CLUSTER  under REMOVAL & INSTALLATION. After repairs are made, go to next step.
  14. Check system for normal operation. If system operates normally, test is complete. If system does not operate normally, go to step  2.
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