just wondering if this is possible,
if the ABS light come's on now and then,
and the speedo bounces, as it doe's,
could it trigger the dreaded OD flashing light.
Anyone experience this sort of thing?

 

Never heard of this interaction before.
The shifter light is for indicating transmission troubles and to indicate the transmission is inhibited from going into overdrive if switched off..
No connection to the ABS brake functions.
ABS codes never appear as engine or transmission codes.
Good luck.

 

Thank's Bluegrass 7, for your input on this.
It just happened once, had to turn the truck off and after a restart,
all was good I assumed the speedo and abs were perhaps somehow tied in with the tranny, and perhaps causing it to go into limp mode because of all the confused signals it was getting.
Much appreciated, thanks.