Hi
I have got the lights, control box, the JDM rocker switch (for steering light, off, or not steering but fogs on) and most of the wiring harness, car has power steering so don't need the Steering Position Sensor as the turning fogs use same sensor.
Fortunately my car does have the 4 pin plug for the JDM 3 position fog switch in the loom already, was taped up out the way, after a lot of tracing - 2 of these wires (RED and Yellow) end up down passenger side kick panel area far back bottom long connector I fitted the Red (LMP and Yellow (MSW) from Turning Fog ECU to the plug which didn't have the pins fitted (took the plugs from donor car, positions matched up, used tools to pop the female pins out and put in my cars plug) the other 2, one is chassis / GRND = white with black line, the last one Green with Yellow Line goes to the fog light relay, these 2 wires are also connected to the basic on off switch for "standard" fog lights so simply remove original switch and tape that connector up out the way.
UWSW Blue wire from Fog Ref ECU seems to have something to do with ignition key insertion switch as soon as key is inserted (not turned) this blue wire is grounded, pull key out it rises to 10 odd volts, I've wired it in to the position on the original plug I took from donor car, the other side of the loom in my car that this wire now connects to via the plug is also blue but as of yet I have not traced its exact location hence the "it seems to have something" will update when I find out.
The lights were easy as I removed the compete loom from front of donor MR2 so just fit and plug in, bolt ECU to side area, carfully cut plastic cover to suit, looks like it was always there.
Steering Position Sensor:
This had 5 terminals if you pop the lid off you have :
E, 1, C, 2, B on the PCB.
If you have the wire harness that plug into the steering position sensor they will be as below:
E = Black wire = chassis ground (no power steering you will need to run wire to chassis).
1 = White Wire = SS2
C = Brown Wire = SSC
2 = Green Wire = SS1
B = Red = VS
Note that SS1 and SS2 can be reversed as a few diagrams I found SS1 at steering sensor went to SS2 at power steering ECU, and SS2 at steering sensor went to SS1 on Power Steering ECU on the actual Power Steering ECU so if your fog lights turn the wrong way swap these round on the FOG LIGHT ECU end ONLY !. either at sensor (no power steering) or where you joined in to pick up the SS1 & SS1 feed in your loom if you have PS
On my car which has power steering.
SS1 = Yellow with red line ------> Green Wire or "2" terminal on steering position sensor
SS2 = Yellow with red line ------> White wire or "1" terminal on steering position sensor
SSC = Yellow with Green line ------> Brown wire or "C" terminal on steering position sensor
VS = Yellow with black line ------> Red Wire or "B" terminal on steering position sensor
These 4 above will join into power steering sensor position wiring either at steering column if you don't have PS (but now have sensor) or if you have power steering to the black power steering ECU or loom in passenger foot well, what ever is easiest.
If you didn't have PS but now have the sensor you will need to connect E terminal or black wire from steering position sensor to a convenient bolt that's part of car chassis.
I actually cut all other wires off the power steering plugs from donor car and left the plugs connected to the fog light wiring loom I took out so when I came to wire in to my car I joined these to the same connector positions on my car a 1994 Turbo with power steering under glove box / side kick panel down where the door wiring plugs in wiring harness right at the back, all colours were the same except the VS = Yellow and black, joined into a Red with Blue strip wire, as that position was already used but before joining I checked continuity from VS on steering position sensor to the red with blue stripe wire and it definitely went there so spliced the Yellow with Black line wire to the Red with blue line.
SP = Violet with white stripe line - this joined to the black PS ECU wiring in front trunk.
+B = white with red stripe line I joined into another wire of same colour under glove box area high up after confirming it was a permanent +12v
IG = Red with blue strip line, I joined into another wire of same colour under glove box area after confirming it was a switched live with ignition.
GND = White with black stripe line, easy bolted right to fixing plate / chassis.
The last thing you will need to do is give the RED - LMP wire a switched power supply of 12v off ignition as without it the LEDs in the original JDM switch (where LMP also goes) won't work and the steering fogs won't turn either.
Hope this helps
John (from UK)
I have got the lights, control box, the JDM rocker switch (for steering light, off, or not steering but fogs on) and most of the wiring harness, car has power steering so don't need the Steering Position Sensor as the turning fogs use same sensor.
Fortunately my car does have the 4 pin plug for the JDM 3 position fog switch in the loom already, was taped up out the way, after a lot of tracing - 2 of these wires (RED and Yellow) end up down passenger side kick panel area far back bottom long connector I fitted the Red (LMP and Yellow (MSW) from Turning Fog ECU to the plug which didn't have the pins fitted (took the plugs from donor car, positions matched up, used tools to pop the female pins out and put in my cars plug) the other 2, one is chassis / GRND = white with black line, the last one Green with Yellow Line goes to the fog light relay, these 2 wires are also connected to the basic on off switch for "standard" fog lights so simply remove original switch and tape that connector up out the way.
UWSW Blue wire from Fog Ref ECU seems to have something to do with ignition key insertion switch as soon as key is inserted (not turned) this blue wire is grounded, pull key out it rises to 10 odd volts, I've wired it in to the position on the original plug I took from donor car, the other side of the loom in my car that this wire now connects to via the plug is also blue but as of yet I have not traced its exact location hence the "it seems to have something" will update when I find out.
The lights were easy as I removed the compete loom from front of donor MR2 so just fit and plug in, bolt ECU to side area, carfully cut plastic cover to suit, looks like it was always there.
Steering Position Sensor:
This had 5 terminals if you pop the lid off you have :
E, 1, C, 2, B on the PCB.
If you have the wire harness that plug into the steering position sensor they will be as below:
E = Black wire = chassis ground (no power steering you will need to run wire to chassis).
1 = White Wire = SS2
C = Brown Wire = SSC
2 = Green Wire = SS1
B = Red = VS
Note that SS1 and SS2 can be reversed as a few diagrams I found SS1 at steering sensor went to SS2 at power steering ECU, and SS2 at steering sensor went to SS1 on Power Steering ECU on the actual Power Steering ECU so if your fog lights turn the wrong way swap these round on the FOG LIGHT ECU end ONLY !. either at sensor (no power steering) or where you joined in to pick up the SS1 & SS1 feed in your loom if you have PS
On my car which has power steering.
SS1 = Yellow with red line ------> Green Wire or "2" terminal on steering position sensor
SS2 = Yellow with red line ------> White wire or "1" terminal on steering position sensor
SSC = Yellow with Green line ------> Brown wire or "C" terminal on steering position sensor
VS = Yellow with black line ------> Red Wire or "B" terminal on steering position sensor
These 4 above will join into power steering sensor position wiring either at steering column if you don't have PS (but now have sensor) or if you have power steering to the black power steering ECU or loom in passenger foot well, what ever is easiest.
If you didn't have PS but now have the sensor you will need to connect E terminal or black wire from steering position sensor to a convenient bolt that's part of car chassis.
I actually cut all other wires off the power steering plugs from donor car and left the plugs connected to the fog light wiring loom I took out so when I came to wire in to my car I joined these to the same connector positions on my car a 1994 Turbo with power steering under glove box / side kick panel down where the door wiring plugs in wiring harness right at the back, all colours were the same except the VS = Yellow and black, joined into a Red with Blue strip wire, as that position was already used but before joining I checked continuity from VS on steering position sensor to the red with blue stripe wire and it definitely went there so spliced the Yellow with Black line wire to the Red with blue line.
SP = Violet with white stripe line - this joined to the black PS ECU wiring in front trunk.
+B = white with red stripe line I joined into another wire of same colour under glove box area high up after confirming it was a permanent +12v
IG = Red with blue strip line, I joined into another wire of same colour under glove box area after confirming it was a switched live with ignition.
GND = White with black stripe line, easy bolted right to fixing plate / chassis.
The last thing you will need to do is give the RED - LMP wire a switched power supply of 12v off ignition as without it the LEDs in the original JDM switch (where LMP also goes) won't work and the steering fogs won't turn either.
Hope this helps
John (from UK)
