I am damn'd if I can find the +B1 wire for my swap and need some help.
I purchased a crashed 1995 LS400 with reasonably low mileage, 115K and had initially planned on keeping it Auto but decided to go manual when a cheap T100 came up as a parts truck plus i prefer a standard. Following Nigel's excellent manual, researching a lot of other build threads, and downloading all of the Toyota FSM Wiring have helped a lot but none of them specifically identify a +B1 that I can find at least.
ECU is a 89661-50231, online sources say this was for 02/1995 to 08/1995 California spec vehicles. I had it serviced and all of the capacitors replaced.
I believe I 'may' have identified +B1 but can not find any hard evidence to confirm
Having identified nearly all of the other wiring I have a stray wire at Pin 23 on the E11/A/28pin plug that I suspect is +B1. That plug also has these similar critical system wires.
09 = IGWS
14 = BATT
22 = +B
23 = unidentified Violet wire with 2 Orange bands (+B1 ?)
24 = MREL
Per this VIN in the Toyota system, the schematic does not list a +B1 connecting to the Engine Control Module nor discuss it in the Engine Control System Outline.
Pic 1
Nigels guide and the plug diagram in the Toyota System Outline show this pin as empty.
Pic 2
Pic 3
That is not correct, the Violet wire lives there, anonymously, for now at least
Pic 4
Is +B1 typically located on the same plug as +B/MREL/IGSW ?
Any help appreciated, thank you. Chris
I purchased a crashed 1995 LS400 with reasonably low mileage, 115K and had initially planned on keeping it Auto but decided to go manual when a cheap T100 came up as a parts truck plus i prefer a standard. Following Nigel's excellent manual, researching a lot of other build threads, and downloading all of the Toyota FSM Wiring have helped a lot but none of them specifically identify a +B1 that I can find at least.
ECU is a 89661-50231, online sources say this was for 02/1995 to 08/1995 California spec vehicles. I had it serviced and all of the capacitors replaced.
I believe I 'may' have identified +B1 but can not find any hard evidence to confirm
Having identified nearly all of the other wiring I have a stray wire at Pin 23 on the E11/A/28pin plug that I suspect is +B1. That plug also has these similar critical system wires.
09 = IGWS
14 = BATT
22 = +B
23 = unidentified Violet wire with 2 Orange bands (+B1 ?)
24 = MREL
Per this VIN in the Toyota system, the schematic does not list a +B1 connecting to the Engine Control Module nor discuss it in the Engine Control System Outline.

Nigels guide and the plug diagram in the Toyota System Outline show this pin as empty.


That is not correct, the Violet wire lives there, anonymously, for now at least


Is +B1 typically located on the same plug as +B/MREL/IGSW ?
Any help appreciated, thank you. Chris