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4,834 Posts
Discussion Starter #1 (Edited)
To preform an Instrument Cluster self test:

Close all doors.

Press and hold trip meter rest on the dash

turn key to run postion but do not start the truck

release the trip meter rest button.

You cluster will now turn on all the dash/warning lights. each gauge will sweep though movement and your odometer will display sets of codes. I am still Currently looking for more information on these codes.

The self test will stop if:
It senses Vehicle movemet
Or the engine is started.

Mine took about 1 minute and 30 seconds to complete.
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