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Test I: PRNDL Display Park Indicator Inoperative

  1. If Instrument Panel Cluster (IPC) diagnostic system check has been performed, go to next step. If IPC diagnostic system check has not been performed, see INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ignition switch to ON position. Place transmission shift lever into Park position. If PRNDL display identifies PARK ignition, system is functioning properly at this time. Check wiring and connectors for intermittent fault conditions. See WIRING DIAGRAMS  . If PRNDL display does not identify PARK position, go to next step.
  3. Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). Turn ignition switch to ON position. Using scan tool, observe PARK SWITCH parameter in IPC data list. If parameter indicates CLOSED, go to step  8 . If parameter does not indicate CLOSED, go to next step.
  4. Disconnect park switch electrical connector. Connect fused jumper wire between park switch connector terminal "A" (Dark Green/White wire) and ground. Using scan tool, observe PARK SWITCH parameter on IPC data list. If PARK SWITCH parameter indicates CLOSED, go to step  6 . If parameter does not indicate CLOSED, go to next step.
  5. Check Dark Green/White wire between park switch connector and steering column connector C211 terminal A9. Check Orange/Black wire between steering column connector C211 terminal A9 and IPC connector terminal A12. See Figure and Figure . See WIRING DIAGRAMS  . Check circuit of open or high resistance. Repair wiring as necessary, then go to step  11 . If no problem is found, go to step  8 .
  6. Check Black wire between park switch connector and ground for open or high resistance. See WIRING DIAGRAMS  . Repair wiring as necessary, then go to step  11 . If wiring is okay, go to next step.
  7. Check park switch connector for poor connection or corroded terminals. Repair connector as necessary, then go to step  11 . If no problem is found, go to step  9
  8. Check IPC connector for poor connection or corroded terminals. Repair connection as necessary, then go to step  11 . If no problem is found, go to step  10 .
  9. Replace park switch . See PARK/NEUTRAL POSITION SWITCH  under REMOVAL & INSTALLATION. When repair is complete, go to step  11 .
  10. Replace IPC. See INSTRUMENT PANEL CLUSTER  under REMOVAL & INSTALLATION. When repair is complete, go to next step.
  11. Operate system to verify normal operation. If PRNDL indicator is functioning properly, repair is complete. If PRNDL indicator is not operating properly, go to step  3 .
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