Code 303 which is related to a 12 volt supply produced by the display. Every wire to the display has been checked and verified, the frame is clean. The display itself swapped out with a good working unit. The 12 volt supply is at 12.58 every time you start the truck. If you leave the truck for 5 to 10 minutes with the key on it will fire and run most of the time. Turn the key off and leave it sit for ten minutes and it codes 303 every time. HELP
Thanks
ltrm812 at gmail dot com
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We used to get this code when there was a problem with the connectors around the distribution board, there was a T.S.B. on the early units. the only other thing I could think of is watching that voltage as you raise and lower the platform, just to see if there might be a problem with the control cables.
The code reads 12 volt power supply out of range at display
Its not the relays, swapped the distribution board with working truck
Ok, try this. swap the two relays on the distribution board.
One relay uses only on side and the other uses the opposite.
Sorry I don't have the book in front of me for that code.
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