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2002 Navigation System Diagnostics (including display and A/C)

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Old 10-18-06, 06:40 PM
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Display Unit Diagnostics

1. Press the Audio button to get to the Audio screen.
Attached Thumbnails 2002 Navigation System Diagnostics (including display and A/C)-img_0931.jpg  
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Old 10-18-06, 06:41 PM
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2. Press the Display button to get the Display overlay.
3. Press area A and then B. Repeat three or four times.
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Old 10-18-06, 06:45 PM
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That'll get you to this diagnostic code checking screen (wait for a couple seconds while each system is checked) If everything is in working order, you'll see "OK" next to each item.
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Old 10-18-06, 06:46 PM
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Now press the "Menu" button in the top right of the screen.

You'll be presented with this menu.

Pressing Service check returns you to the previous screen.
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Last edited by audax; 10-18-06 at 07:05 PM.
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Old 10-18-06, 06:46 PM
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"Display Check"
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Old 10-18-06, 06:48 PM
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Color Bar Check

This lets you check that all the colors are being displayed properly. If any of those color bars show up black then your display is broken.
Attached Thumbnails 2002 Navigation System Diagnostics (including display and A/C)-img_0937.jpg  
Last edited by audax; 10-18-06 at 07:06 PM.
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Old 10-18-06, 06:48 PM
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Touch screen functionality check

Press each line to verify that each section of the touchscreen is responsive. The "Next" button will take you to a horizontal line test.
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Last edited by audax; 10-18-06 at 07:07 PM.
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Old 10-18-06, 06:50 PM
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Button function check

Press one of the button around the display and the name of the button will appear in the box to signify that the button works properly.
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Old 10-18-06, 06:51 PM
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Vehicle Signal Check

Battery Voltage
Ignition state
Parking brake mode
Current speed
Taillights on or off
Level of automatic dimmer/headlights
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Old 10-18-06, 06:51 PM
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Navigation Check Menu
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Old 10-18-06, 06:52 PM
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GPS Information
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Old 10-18-06, 06:54 PM
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More vehicle signal checks related to GPS
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Old 10-18-06, 06:55 PM
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Nav Color Bar Check

If any colors on here are missing (and the previous Display color check worked) then the navigation unit or the wires connecting to it are broken.
Attached Thumbnails 2002 Navigation System Diagnostics (including display and A/C)-img_0947.jpg  
Last edited by audax; 10-18-06 at 07:09 PM.
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Old 10-18-06, 06:55 PM
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Memory Copy and Paste

Looks like the dealer has the ability to backup your previous destinations, marked points, etc before they remove/replace the navigation unit. Pressing either button gives an error that the tool is not connected.
Attached Thumbnails 2002 Navigation System Diagnostics (including display and A/C)-img_0948.jpg  
Last edited by audax; 10-18-06 at 07:10 PM.
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Old 10-18-06, 06:56 PM
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Parts information
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