I am really in need of some help with the ecu pinouts. I have seen a few on the net, but none for the 95 ls400. can anyone help me out here? please?

This is how i have things numbered, so it may help figure out what i am talking about. I have NOTHING on connector number 4. that is the one i am really needing.

 

well I do have connector number 6 from the engine harness figured out (i think). pg number refer to the lexus electrical wiring diagram book for the 95 ls400. I just made this, so if you have any input or see mistakes let me know.

 

found a couple of little typos. will fix soon

 

Here is connector 5 on the engine loom...

 

These are for a JDM 94-95. Hope most of these are the same.

 

Yamae, jdm 1994 & 1995 have the UCF20 look? funny my 1995-1997 look has no OBD2 under the dash but has the circle port instead

 

The OBD2 was not due in Japan up to October 2008. Some models have equipped with the DLC connector more than 10 years prior to it and those models use Pxxx codes that are mostly the same with OBD2's but the communication protocols were not exactly the same with the OBD2. Actually my 98 Celsior has a DLC connector but it does not communicate with the OBD2 scanner. Celsiors UCF30/31 manufactured after August 2003 are OK to communicate with OBD2 scanners.