Anyone in the CNJ Area help me fix trans?

[USSEnterprise]

To put it plainly, I don't really know whats wrong with it. It *seems* to not want to shift to second gear when in drive, but I'm not sure

When I try to get trouble codes using the sequence of shifting and pressing the manual button, I get the power light blinking in this pattern
on for a half second
off for > 1/4 second
on for ~1/10 second
off for ~ 2 second

Makes me think it could be the TCM, as thats not a specified blink pattern as I saw in the trans repair manual for the 4EAT, but I don't know.