Circuit / System Verification

Ignition ON / Vehicle in Service Mode.
Verify no infotainment - related DTCs are set.
- If DTCs are set
  Diagnose other DTCs first. Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no other DTCs are set
Verify a test pattern is displayed is displayed on the P29 Head - Up Display when performing the Instrument Panel Cluster Control Module Illuminate All Indicators on the scan tool on the scan tool.
- If the test pattern is not displayed
  Refer to Circuit / System Testing.
- Go to next step: If the test pattern is displayed
Verify the P29 Head - Up Display performs the following functions while selecting the appropriate state on the P53 Driver Information Display:
- DIM + Switch - Head - up display brightness increases
- DIM - Switch - Head - up display brightness decreases
- UP Switch - Head - up display image moves up
- DOWN Switch - Head - up display image moves down
- INFO Switch - Head - up display image changes pages
- If the P29 Head - Up Display does not perform the expected function with the switch in the appropriate state
  Refer to Inoperative Head - Up Display Switch Circuit / System Testing.
- Go to next step: If the P29 Head - Up Display performs the expected function with the switch in the appropriate state
All OK.