Pinpoint Test A: Black screen (navigation and audio screens do not display.)
- A1: The screen saver function works
Check the screen saver function works.
Does the screen saver function work?
YES: Operation is normal.
NO: Proceed to the next step. Go to step 2.
- A2: The display backlight emits light
Check the display backlight emits light.
Does the display backlight emits light?
YES: Proceed to the next step.
NO: Go to step 12.
- A3: The screen is turned off
Check the screen is not turned off.
Do the navigation and audio screens display when the screen is turned on?
YES: Operation is normal.
NO: Go to step 4.
- A4: The vehicle interior temperature is -20°C or less
Check the cabin internal temperature.
Is the cabin internal temperature -20°C or lower?
YES: Raise the cabin internal temperature, re-test the vehicle.
NO: Go to step 5.
- A5: Condensation is forming inside the vehicle
Check for condensation occurring inside the passenger compartment.
Is condensation occurring inside the passenger compartment?
YES: Dry out the passenger compartment, re-test the vehicle.
NO: Go to step 6.
- A6: The LED for the power supply button is flashing. (RANGE ROVER only)
Check the status of the audio power button LED.
Is the audio power button flashing?
YES: Carry out MOST Ring diagnostics to locate fault.
NO: Go to step 7.
- A7: Only the navigation screen or audio screen is black
Check to see if only the navigation screen is blank.
Is only the navigation screen blank?
YES: Check and install a new Touch Screen Display (TSD) as required. Refer to the new module/component installation note at top of DTC Index.
NO: Go to step 8.
- A8: Only the back monitor screen is black
Check to see if only the audio screen is blank.
Is only the audio screen blank?
YES: Proceed to the next step.
NO: Go to step 10.
- A9: After initiating the "Video Input Test" diagnosis, video can be displayed
Carry out the "Video Input Test" diagnosis' (PIN code 753).
Are the results of the "Video Input Test" diagnosis' normal?
YES: Re-check the system.
NO: Refer to the electrical circuit diagrams and check the cameras control module.
- A10: Only the TV screen is black
Check to see if only the TV screen is black.
Is only the TV screen blank?
YES: Proceed to the next step.
NO: Go to step 12.
- A11: After initiating the "Video Input Test" diagnosis, video can be displayed
Carry out the "Video Input Test" diagnosis' (PIN code 753).
Are the results of the "Video Input Test" diagnosis' normal?
YES: Re-check the system.
NO: Refer to the electrical circuit diagrams and check the TV control module.
- A12: The connections between the visual navigation and power supply wiring harness and connectors are correct
Check the display and power supply harness, power, auxiliary and ground circuits, for short, open circuits and are correctly connected.
Was a fault identified with the display and power supply harness, power auxiliary and ground connections?
YES: Rectify the fault and re-test the vehicle.
NO: Check and install a new Touch Screen Display (TSD) as required. Refer to the new module/component installation note at top of DTC Index.