PRNDL Fuse #20 Blows Ignition Switched On
1997 Yukon 5.7L Vortec 4WDAs soon as ignition is switched to ON, PRNDL Fuse #20 Blows.
Dash gauges stop working, transmission goes into limp mode.
Situation developed while driving (noticed speedo stopped, and transmission in Drive would not downshift, had to manually shift through gears).
Entire gauge cluster was disconnected, condition same (short not in gauge cluster).
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