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Test P: Head-Up Display Inoperative

  1. If IPC diagnostic system check was performed, go to next step. If IPC diagnostic system check was not performed, go to INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing IPC diagnostic system check, go to next step.
  2. Turn ignition off. Move HUD display dimmer switch to maximum position. See Figure . Turn ignition on. If all segments of HUD display on windshield come on and turn off in 3.5 seconds, system is operating properly at this time. If HUD does not operate as specified, go to next step.
  3. If HUD displays 2 dashes only, go to next step. If HUD does not display 2 dashes, go to step  5 .
  4. Disconnect HUD display connector. See HEAD-UP DISPLAY UNIT  under REMOVAL & INSTALLATION. Disconnect IPC. See INSTRUMENT PANEL CLUSTER  under REMOVAL & INSTALLATION. Check for open or short to ground in Black wire (clock circuit) between IPC connector terminal No. 4 and HUD display connector terminal No. 5. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to step  6 .
  5. Check for open or short to voltage in Black wire (ground circuit) between IPC connector terminal No. 1 and HUD display connector terminal No. 8. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to step  8 .
  6. Check for open or short to ground in Black wire (data circuit) between IPC connector terminal No. 5 and HUD display connector terminal No. 4. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to next step.
  7. Check for open or short to ground in Black wire (strobe circuit) between IPC connector terminal No. 6 and HUD display connector terminal No. 3. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to step  13 .
  8. Check for open or short to ground in Black wire (ignition 1 circuit) between IPC connector terminal No. 2 and HUD display connector terminal No. 7. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to next step.
  9. Check for open in Black wire (HUD dimmer signal circuit) between IPC connector terminal No. 3 and HUD display connector terminal No. 6. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to next step.
  10. Disconnect HUD switch. See DRIVER INFORMATION CENTER & HEAD-UP DISPLAY CONTROL SWITCHES  under REMOVAL & INSTALLATION. Check for open in Black wire between IPC connector terminal No. 3 and HUD switch connector terminal No. 1. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to next step.
  11. Check for open in Purple wire between IPC connector terminal No. 10 and HUD switch connector terminal No. 10. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to next step.
  12. Check for open in Light Blue wire between IPC connector terminal No. 11 and HUD switch connector terminal No. 11. Repair as necessary. After repairs, go to step  18 . If circuit is okay, go to next step.
  13. Check for poor connections at HUD switch and IPC connectors. Repair as necessary. After repairs, go to step  18 . If connections are okay, go to next step.
  14. Check for poor connections at HUD display and IPC connectors. Repair as necessary. After repairs, go to step  18 . If connections are okay, go to next step.
  15. Replace HUD switch. See DRIVER INFORMATION CENTER & HEAD-UP DISPLAY CONTROL SWITCHES  under REMOVAL & INSTALLATION. If HUD operates properly, go to step  18 . If HUD does not operate properly, go to next step.
  16. Replace HUD display. See HEAD-UP DISPLAY UNIT  under REMOVAL & INSTALLATION. If HUD operates properly, go to step  18 . If HUD does not operate properly, go to next step.
  17. Replace IPC. See INSTRUMENT PANEL CLUSTER  under REMOVAL & INSTALLATION. After repairs, go to next step.
  18. Recheck system operation to verify the repair. If system operates properly, repair is complete. If system does not operate properly, go to step  2 .
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