Hi I am just about to start putting in my wire harnesses for power door/window and mirrors and I need some help.

1st part power door/window
when I look at the main wiring that got to the centre console - apart from what connect to the window switches one side has a black wire connector and the other side has a pink wire (i think its pink not near the car at the moment).
which goes where i.e does the side with the black go off towards the passenger door and the other goes to the drivers?

2nd part- the power mirror wire - same question as above - which side goes where?

3rd part -I have 3 wires going in to the power door switch - one is light blue, one is black and the other is orange can anybody tell me which goes where o n the door switch

any advice and input is welcomed
thanks again
jon

[This message has been edited by jon m (edited 03-07-2012).]

I would recommend the following...

downloading the Fiero Service manual: http://www.fieronews.net/fu...nloads.php?cat_id=13

And my write up found here: http://www.michiganfieroclub.com/files/power.pdf

I created a color wiring diagram when I upgraded my 85SE to power windows and locks. I'll try to send it to you if I can find it.

thank you

jon

started to look at the wiring today.
my car already has power windows installed, so I am thinking to remove the power window wires from the donor harness and just add the power door wires if this makes sense.

my gt is a 1987 and I think the donor harness is earlier will this still be the same set up?

thanks in advance
jon

quote Originally posted by jon m: started to look at the wiring today. my car already has power windows installed, so I am thinking to remove the power window wires from the donor harness and just add the power door wires if this makes sense. my gt is a 1987 and I think the donor harness is earlier will this still be the same set up? thanks in advance jon

The wiring is the same. I am not sure the wire color is the same, but I think it is also. You can mix/match harnesses.

looked at removing the dashboard and only took about 1 1/2 hours so i can see every thing alot clearer and without putting my back out
will update/ask questions as i go

thanks so far
jon

photos may help

will upload shortly

this is the donor harness



I will upload my original harness later. I think it may have something to do with 2 black wires which has a orange strip on them.

jon

[This message has been edited by jon m (edited 03-08-2012).]

these are the 2 original harness plugs





any input is welcomed
jon

I looked at the schematics for the power windows, locks, and mirrors in both the '88 and '86 service manuals to see if I could help, but there are no OEM connectors with those shapes in the door, nor are there any purple or white wires in any of those 3 circuits like your photos show. For me to be of any further help, you'll have to post the pin number/letter and color of each wire in each connector, like this:

8 pin connector:
Pin A = purple
Pin B = tan
etc, etc.

Also, you'll need to describe whether these connectors are in the door or under the dash.

Thanks Dave - I will get back to to you on this

jon

[This message has been edited by jon m (edited 03-13-2012).]

Found the answer for the smaller connector but I'm still searching for the larger one:

The four pin connector is called C305 and the wires are used fro several different circuits:

pin A - black - connects seat belt switch to chime unit;
pin B - purple - connects parking brake switch to chime unit (all cars) and to trunk release relay (manual cars)
pin C - light blue - connects high level stop light to brake pedal switch
pin D - black - connects high level stop light to ground

One half of the connector is on a wire bundle that leads from the high mounted stop light across the roof along the back window, down the driver's B pillar, under the carpet past the e-brake handle, and pops up near the fuse box. The other half of the connector is in a wire bundle that starts near the fuse box and runs across the car under the dash to the convenience center.

thank you dave - i think i will pull out the donor harness out of my car and replace with my original harness and just add the power door wires to this.

jon

I have put back my original power window harness back in to the car but I also added the power door wires to it (if you can remember I had 2 different wire blocks which didnt match up to the car).

my first question is - on the c200 block w and x are already in use (i havent touched those ones) but Y is availble, can I plug in the power door wire into it as shares the same circuit number as w and x?

second and hopefully the last on this subject - as I have added the power door wires I have found that I have 2 orange wires left over, one of them was with the plug that goes into the c200 block with a white wire (maybe the H terminal) and the other orange wire was with the c201 plug.

now please bear in mind the I already have a white wire and orange wire plug from the original power window harness can I just splice the spare orange wire into this?

and what do i do with the one from the c201 plug do i splice into my original plug for that as well??

any help is welcomed
jon

quote Originally posted by jon m: on the c200 block w and x are already in use (i havent touched those ones) but Y is availble, can I plug in the power door wire into it as shares the same circuit number as w and x?

Yes you can. Pin W feeds pins X and Y from the 30 amp Power Accy Circuit Breaker. In the stock configuration X is used to power the door locks, and Y is used to power the rear window defroster. Both are high amperage circuits so you should be fine using pin Y for your door locks.

quote Originally posted by jon m: I have found that I have 2 orange wires left over, one of them was with the plug that goes into the c200 block with a white wire (maybe the H terminal)

If you look carefully, sockets D and F should each have an orange and white wire pair plugged into them. In your case, one of them will be unplugged so that's where the first orange wire goes.

quote Originally posted by jon m: ...the other orange wire was with the c201 plug.

The orange wire running to one half of C201 pin B must have a matching orange wire on the other half of C201 pin B. One side runs from pin B to the Courtesy/Lid Fuse, and the other side runs to the door lock switches. When pressed, the door lock switches feed 12Vfrom the Courtesy Fuse to energize the door lock relay. It doesn't provide the high current to actually open the door lock actuators, that job is done by the wire you're connecting up to C200 pin Y. Hopefully this is clear, but if not don't be afraid to ask for more clarification.

thanks dave this has helped me a lot - hopefully I will now has conquered this one

jon

this is what i found today - I ran 12volts from one of the orange wires and found that it is connected to the plug that goes off to the power door switch and it is also connected to my other orange wire which I was unsure of at first.

the first wire I then connected to the c200 block as bloozeberry pointed out at point d (I think)
the second orange wire - I isolated with insulation tape - this was because I figured that it belonged to the courtesy light wires etc and as I already had power windows with the same wire feed and therefore it did not require it (if this makes sense)

so when my door relay arrives hopefully it is job done

jon

Seems to make sense, though it's hard to be certain when you're an ocean away. You'll know for sure if you got it right when you power up the car and see if the dome lights work or not.

Thanks Bloozberry - I have powered the car up and the dome lights still work (off the original wire harness), so just have to wait for the power door relay to arrive and will find out.

will update on this

thanks for all your help

jon

Hi, this is just a recap of what I did as not to cause any confusion - so if any forum member spots any errors please dont hesitate to point this out.

the car is a 87 gt with power windows already installed as factory option.

I removed the power window harness from the car and placed a donor harness in with power door option ( as well as the power window option )

I then found that 2 plugs where not compatible with the existing car's wiring, as pointed out by bloozeberry - it went to the dome lights etc.

As I did not want to cut into the original wiring, so I then removed the donor power door and window harness out of the car

I removed the power door wires off the donor wiring and added this to the car's original power window harness
and put back it into the car.

this meant that the dome light plugs etc fitted.

I was left with just 2 orange wires - ( this was from the power door harness ) 1 which I knew went to the c200 block.
the other was from one of the conflicting dome light plugs.

I then put 12 volts through one of the orange wires ( none connected to the car's electrics ) and found that it went to the orange wire that is on the power door switches and the other conflicting orange wire.
My conclusion was all 3 were connected to each other.

so I put the 1st orange wire to the c200 block and the other I just isolated with insulation tape as it wasnt needed because the original power window harness powered the dome lights etc.

confused? I was.

jon m

well just an update - got my power door relay from the fiero factory and hey presto all is good and working.

thanks for all the advice and opions

jon

I'm about to start this very swap myself. I'll be starting with two doors with all the power options already though. I don't know if that makes it any easier, but I'm excited to start the swap! Good luck on yours!

Tyler

thank you and good luck with yours you may want to check out this post that came up yesterday (i think) had the same thing happen but now resolved.

https://www.fiero.nl/forum/Forum2/HTML/122538.html

jon