this is what the tech has on my slip 12chkcodes: check codes, system lights on customer states check engine light is on work performed by XXXXX XXXXX. 661
customer advised the trans control module is bad. part no RL028795AC I had it changed and reset and the light came back on this am. not changed by XXXXX XXXXX
po700 trans control stystem malfuction
po841 trans- fluid rressure sensor/switch
changed the pcm module controls all
hope this helps
that was before the new trans control module was replaced.
then when the new one was in they cleared all.