Outer Limits 4x4 Board

Guys, there was a thread on here which I have read before but fo rthe life of me i cant fucking find it! I need to find the procedure to getting the transmisison fault codes for my 94 GQ.

The issue being that it is stuck in limp mode, it used to do it but it would always come out of it. I have replaced the TCU and TPS along with having the box serviced which I was told there was no material or bits of shit in the pan and the fluid was only slightly burnt smelling..his words not mine...also the mode switch POWER light will not come on! which i need tto get the codes, the switch still works as i tested it as per the gregorys manual i have...any help please! haha

alternatively, can someone email/direct me where to find the section from tha nissan manual regarding the auto trans, the manual i have (not nissan) covers fark all.

On another note, i managed to bust the mode switch so i need to buy a new one...70 dollars from mr nissan thankyou very much!