Hello Everybody,

I own a 1989 Z51 manual Corvette. The door was side swiped when I bought the car. So I opted to buy a replacement door, complete. The only problem I am having is the wiring on the 1989 side mirror is different from the wiring on the 1990 door.
Both mirrors use three wires but the 1989 uses a different connector and different colors than the 1990. Does anyone know how to decipher the wires.
I have attached pictures of the connectors.
The top photo is the 1990
The opne with the two whites and one yellow wire is the 1989

Thank you for the help and Happy New Year to all

Joe

 

The mirrors are identical for both '89 and '90. You need to swap all of the door harness from the original '89 door to the '90 door that you're using. There is some minor differences in the door sheet metal reinforcement also '89 to '90.

The connector that you've referenced for the '90 is part of the door harness and isn't color orientated for a mirror. There is this possibility though, your '89 has "HEATED" (DL8) and the '90 door has a NON-HEATED (DG7) or the other way around. If that's your issue then you just swap the innards from your '89 mirror to the case and housing of the '90 maybe. Is your '89 mirror damaged? I have a LH (DL8) for an '89 in DRM. What color do you need. An '89 DL8 mirror would have a 3 wire and a 2 wire connector on the mirror harness. You should be able to use either mirror I'm quite sure, you would just sacrifice the HEATED function. I have a RH also but it's attached to a very nice door.

Look further into your harnesses. The mirror harness is maybe 30" long from the mirror

*** The wire connector you've got in your snapshot looks like the "select" (side to side) connector for the mirror switch on the '90. It's also outside of the door frame proper so as to connect to the trim panel.

 

Both mirrors have a pink and black wire that I assume is the heater connection.
Does the harness pluginto the mirror motor or is it part of the motor.
I had to splice in the door lock actuator and it works fine. The wires all matched. What I am trying to find out is the 89 has two whites and one yellow. The 90 has blue , green and white. So if I slice in the connector with the whites and yellows. Which wire goes to what. Does the yellow go to the green, white with the stripe go to the blue.
But if the wires are not part of the motor I may be able to disconnect the harness from the motor and plug in the old harness. And as for purchasing your mirror, maybe I will need it. The 89 mirror was destroyed by a sideswipe accident.
Like I said so far everything swapped and worked but the mirror harnesses. Thank you

 

The '90 mirror has the exact same connectors as the '89. The snapshot you've posted is only on a '90+ door and is the connector to the '90 mirror select (left - right) switch on the trim pad. Your '89 is not like that. I mentioned you need to remove the entire harness from inside your '89 damaged door and use it. Take the harness from inside the '90 door and throw it away or maybe save the connectors.

The door internals are different '89 and '90 regarding lift switches, etc.

Once more, the snapshot is NOT a mirror connector it is intended for a '90 mirror switch. Dig around inside the door and you'll find the connectors you need to disconnect to remove the mirror from the door. If the doors are the same color and you don't need to paint just root around inside the door and find the mirror connect which will be identical to the image in your second snapshot - identical.

 

I am not trying to remove the mirror. What I am trying to do is get power to the mirror so that it will operate. The mirror on the 90 door is perfect.

When I bought the car the mirror and door had damage so bad I felt it was easier to purchase a door. So I bought the door. I pulled the harness from the 89 door out. I installed the door and threaded the wiring harness from the 89 door through the 90 door. The only connection that does not match is the wires to the mirror. I traced the connector all the way to the mirror. The blue, green and whits wires are the wires to the mirror. The Yellow, Whits and Whits/Black wire are the mirror wires from the 89 door.
I will recheck this later in the week but I am sure that I am correct.
Being you have done this before. Do the wires connect to the motor by connector or are they part of the mirror.

thank you for the help

 

If the wire colors on the '90 door connector are WHITE, LT BLUE & LT GREEN they are RH select wires, I have a '90 switch for the mirrors and it's multi-terminal (different than I expected) and the connector that you have there is the 3 wire select harness connector that crosses the car to operate the RIGHT door mirror. Your '89 is way different so while I managed to confuse myself some, it remains that you need to remove your '89 harness and transfer it to the '90 door you intend to use.

'90 mirror harness routing should be like this:




The three way connector should match your 3 wire and the 2 wire (heat) should match also. The three wire cross car isn't of course displayed.

Your '89 mirrors are console controlled I believe and the '90+ doors are in the drivers door trim applique. That's the reason for the connector you don't recognize.

'89 mirror harness routing should be like this:



I don't know your intentions for the wires through the conduit into the door but you will undoubtedly have some issues unless you just keep it all intact and put it into the '90 door you're using. You can use nothing from the '90 harness in the door I expect.



*** I'm surprised to see a connector similar to this in the left door. I would have thought that those 3 wires would have been incorporated in an 8 cavity connector to the mirror switch after I looked at my mirror switch. Is there an 8 cavity switch connector in your door? What is the VIN on the certification label? Was there a bundle of maybe 15 - 20 wires just blunt cut where the conduit enters the door frame?

Is this for a left or right door? You never mentioned


I just assumed left as it's the more frequently door that is sideswiped. If this is for a right door I understand likely your problem and you can just repin or cut splice. I'll post back with the wires to match.

 

My old 87 convertible was used as a demonstrator in a C4 door class. The driver's door mirror had been broken when the previous owner's mother hit the side of the garage when backing out.
I bought a used mirror with attached harness and had it painted to match. I then took the car and the mirror to the class and the instructor pulled off the door panel, unplugged the long harness that was attached to the old mirror, unbolted the mirror and pulled it off. He then bolted in the "new" mirror, plugged the harness in, tested that it worked and reinstalled the plastic water barrier and door panel.
I ended up selling the old broken mirror to a vendor in the swap area so he could use the parts that were still intact.
The new mirror looked just like the one in this eBay listing (although I understand that the 84-87s were different than the 88-96s).
Good luck!http://www.ebay.com/itm/88-96-Corvette-Outside-Heated-Electric-Power-Mirror-LH-NOS-NEW-GM/131083649802?_trksid=p2047675.c100010.m2109&_trkparms=aid%3D333008%26algo%3DRIC.MBE%26ao%3D1%26asc%3D34492%26meid%3D2e731d91c27d4d93b0740393d202acbb%26pid%3D100010%26rk%3D5%26rkt%3D19%26sd%3D171863894502