Polaris Sportsman 850 Service Manual page 456

ELECTRICAL
After the PIDD is turned on, "Booting..." is displayed in
the upper left corner of the screen but then displays an
all-black screen with NO TEXT.
ERROR 2 RECOVERY METHOD:
This concern is caused by mis-formatted or corrupted
memory which can be caused by a failed or corrupted
software update file download.
Perform PIDD Reset Procedure and Update Procedure.
ERROR 3: "BOOTING..." MESSAGE NOT DISPLAYED
ON SCREEN
11.42
PIDD screen does not display "Booting..." in the upper
left corner of the screen immediately after the PIDD is
turned on.
ERROR 3 RECOVERY METHOD:
1. Verify there is power at the PIDD wire harness
connector. Does the screen or buttons illuminate?
2. If the PIDD is not receiving power, troubleshoot the
wire harness, connectors, and ignition switch to
determine why.
3. If the screen and buttons do illuminate, turn the PIDD
off.
4. Perform the PIDD
PROCEDURE.
5. During the procedure, if "Booting..." is never
displayed, replace the PIDD.
ERROR 4: PIDD DISPLAY IS WHITE WITH NO TEXT
RESET and UPDATE