hi i hope i posted this correctlly. my sport light started blinking and it will not take off in d4, so i tried manualy shifting and no 1st or 4th gear it will drive but taking off in 2nd & then driving in 3rd. I also tried to pull the codes by jumping the wire under front right passenger floor board and two short blinks from sport light , i heard the d4 light is for the tcu & check engine light for the ecu, if this is true why is the sport light giving me the two short flashes? the d4 light works when i put in 4th gear so i think the light should work for codes . can someone help me please thanks

 

this is caused by bad capacitors in the tcu u need to replace the tcu then will stop. so for now until u get the new tcu take the positive of the battery for 30 seconds or more and reset the tcu and sometimes it will reset sometimes it wont.but this is definitly the problem took me forever to figure out what it was