That is Code 14 for the transmission.
Code 14 = Shorted or Open FAS wire between TCM terminal D16 & ECM or a faulty ECM. Symptoms are transmission****** hard when shifting.
Since the engine code did not blink and it tens to flicker intermittently, it could be due to a faulty ECM.
Here are the diagnostic procedures.
Images (Click to enlarge)
Saturday, January 15th, 2011 AT 8:33 PM