the ecu looks like this:


Notice it has and extra 12 pin plug for A/T wires. This ECU was never available in USDM, so the Helm manual doesn't cover it. It only came in the JDM B18C auto DC2.

 

here are the wire colors, hope they help.

A1: BRN
A2: YEL
A3: RED
A4: GRN/WHT
A5: BLU
A6: BLU/YEL
A7: GRN/BLU
A8: EMPTY
A9: BLK/BLU
A10: EMPTY
A11: PNK/BLU
A12: GRN
A13: GRN/ORN
A14: ORN/BLK
A15: BLK/RED
A16: WHT/GRN
A17: GRN/BLK
A18: GRN/YEL
A19: YEL
A20: EMPTY
A21: YEL/GRN
A22: EMPTY
A23: BLK
A24: BLK
A25: YEL/BLK
A26: BRN/BLK

B1: YEL/BLK
B2: BRN/BLK
B3: EMPTY
B4: EMPTY
B5: BLU/RED
B6: EMPTY
B7: EMPTY
B8: GRN
B9: BLU/WHT
B10: ORN
B11: ORN
B12: WHT
B13: ORN/BLU
B14: WHT/BLU
B15: BLU/GRN
B16: BLU/YEL

C1: GRN/BLU
C2: GRN/BLK
C3: PNK/GRN
C4: YEL/WHT
C5: LT GRN/BLK
C6: LT GRN/WHT
C7: GRN/RED
C8: GRN/YEL
C9: BLU/GRN
C10: BLU/YEL
C11: ORN/BLU
C12: WHT/BLU

D1: WHT/BLU
D2: GRN/WHT
D3: RED/BLU
D4: BRN
D5: EMPTY
D6: BLU/BLK
D7: LT BLU
D8: EMPTY
D9: WHT/RED
D10: GRN/RED
D11: RED/BLK
D12: EMPTY
D13: RED/WHT
D14: WHT/RED
D15: RED/YEL
D16: EMPTY
D17: WHT/YEL
D18: EMPTY
D19: YEL/WHT
D20: YEL/BLU
D21: GRN/WHT
D22: GRN/BLU

 

most of the wires are easy to figure out, but i'd be interested to see the complete pinouts if anyone has them

 

i don't mean to nose in on this thread but to run that ecu on an auto gsr what else is required? like changing harnesses, running wires..etc???i have considered this but noone can give a straight answer...thanks guys

 

you need an auto gearbox, pedals, shifter etc.. plus you have to run wires for the extra plug.. i've got all the gear to do it if you want, but i'm in australia

 

wouldn't it be the same OBD1 auto LS pinout minus stuff for vtec?

 

i have an auto ls now and was considering the auto gsr swap cause im too lazy to do a 5 speed swap... but noone would give me a straight answer on the wiring or ecu configuration.....thanks in advance

 

what does a25 go to does anyone know

 

My list ('95) says A25 & B1 are both battery power from the main relay.

 

would it be possible for me to drop an obd1 automatic gsr motor trans and ecu into my obd2a auto ls? and if so what wiring mods would be needed..thanks in advance!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96ls &raquo;</TD></TR><TR><TD CLASS="quote">would it be possible for me to drop an obd1 automatic gsr motor trans and ecu into my obd2a auto ls? and if so what wiring mods would be needed..thanks in advance!</TD></TR></TABLE>

you'd have to make up a custom wiring harness i think, unless you know someone who'll make a obd2(auto)-&gt;obd1(auto) harness. wouldn't be a very common swap i'd imagine.

 

other than the adapter harness what else would be needed if anything???