Retrofitting this mirror? - Page 2

Supervinnie40 · 5th February 2014, 17:25

Nobody knows which wires I (we) need?

I've got some time tomorrow and was hoping to get it done tomorrow.
But at the moment it's just sitting here, cause I don't know how to wire it up.

Supervinnie40 · 5th February 2014, 18:53

Quote:

Originally Posted by coab

I just fitted the compass mirror and the only wires you need are red grey and brown. The others you dont need.

I can't find any information on what the ground should be, what wire is the live 12v etc.

Supervinnie40 · 5th February 2014, 19:16

Well, I tried some stuff, and I think I destroyed my mirror...

All I could find is that green and black are ground. All the others are +.
But when I connected some of them, the screen turned black, but didn't respond to my flashlight.
After a few second I got all small spots in the mirror.

So, still nowhere with this....
And I think I messed up my autodim mirror....

Supervinnie40 · 5th February 2014, 20:17

This is what happened:

Can anybody confirm or deny that I destroyed my mirror?
The black spots do dissapear, but the 'bubbles' that you can see are still visible.

Supervinnie40 · 6th February 2014, 08:34

@KC13661,

I found the how-to to be very incomplete and unclear about the most important part (the wiring).
So after realising I ruined my mirror

by trying to figure out how to wire this up, I just opened up the thing and made some pictures.

Since nobody was able to comment on the wiring or give any advice I hope this will help you. Hopefully mine didn't die in vain.

As far as I can tell from the switch board, the wires should be like this:
RED = 12v feed
BROWN = GND (ground/earth)
GREY = RI (not sure, but I think it has something to do with reverse or switched live)
BLACK = +0 (I think this can be ignored)
WHITE = -0 (I think this can be ignored) (is also connected to GND)

Small connector:
GREEN = +0 (I think this can be ignored)
WHITE = -0 with black stripe (I think this can be ignored) (is also connected to GND)

So the way to wire this up could be:
RED = 12v
BROWN = Ground
GREY = Switched or reverse 12v

But please, don't just take my thoughts on this, ask somebody who knows for sure or wait until somebody confirms the above.
As I said, I ruined mine by trying to figure this out... is going to cost me another 30 pounds....

So caution is advised.
Since mine is ruined I can't test it to be sure. Mine won't go dark or lighter anymore...

What will happen:

When 12v goes to the red wire, and the brown is connected to a earth, the LCD plate behind the glass will get 1.46v.
When a light shines on the sensor in the glass, nothing happens.
When a light shines on the sensor on the back, the voltage goes down to 0.64v.
When the RI (grey) is connected to 12v, the voltage will drop to 0.64v. (shining a light on a sensor won't do anything)
When any other wire is connected the LCD plate will get 12v (which breaks it)

So, my theory would be:
When the RI (grey) gets 12v, the screen will turn light, regardless of the light that might shine on the sensor.
The sensor behind the glass doesn't do anything on mine (but it might be broken!), the sensor on the back (facing the windscreen) makes the screen go dark when a light shines on it.
The other wires aren't needed. RED = 12v (switched would be better I think), BROWN = ground, and GREY is optional if you want the mirror to become light when reversing.

HarryM1BYT · 6th February 2014, 09:31

Hi Vinnie,

Got your PM, but I am as much in the dark as you, I can only guess and my guess is the same as yours.

The mirror is obviously now destroyed, the LCD has burnt out by the looks of it.

I would expect it to need...

A +ve, ground, reverse and one from the parking or headlights.

Reverse disables the dimming. The feed from the lights enables it to dim if the lights are on, but not in reverse.

Supervinnie40 · 6th February 2014, 09:36

Thanks Harry. Hopefully KC13661 has more luck with this then me.

HarryM1BYT · 6th February 2014, 10:02

I've just checked Rave and that only shows three wires to the auto-mirror. That is obviously wrong, but that is all I could find on the subject.

Supervinnie40 · 6th February 2014, 10:07

I take it 'Rave' is your car?

If so, any change you could perhaps check which wires do what? i.e. which is switched, which is live, which is from reverse etc?

Greeners · 6th February 2014, 10:21

There are a number of different mirrors and wiring schemes.

On later Range Rover / Jaguars and BMW's the interior mirror is linked to the door mirrors and they also chromatically dip as well

For this application, you only need +ve, -ve and a feed from the reversing lights to restore the visibility when reverse is selected

5th February 2014, 17:25	#11
Supervinnie40 I really should get out more....... Rover 75 1.8 Club Join Date: Dec 2013 Location: Tilburg (Netherland) Posts: 2,615 Thanks: 572 Thanked 336 Times in 247 Posts	Nobody knows which wires I (we) need? I've got some time tomorrow and was hoping to get it done tomorrow. But at the moment it's just sitting here, cause I don't know how to wire it up. __________________ Proud owner of the Dutch "Golden 75". A much loved Gold White Metallic Rover 75 1.8 na from 2000.

5th February 2014, 19:16	#13
Supervinnie40 I really should get out more....... Rover 75 1.8 Club Join Date: Dec 2013 Location: Tilburg (Netherland) Posts: 2,615 Thanks: 572 Thanked 336 Times in 247 Posts	Well, I tried some stuff, and I think I destroyed my mirror... All I could find is that green and black are ground. All the others are +. But when I connected some of them, the screen turned black, but didn't respond to my flashlight. After a few second I got all small spots in the mirror. So, still nowhere with this.... And I think I messed up my autodim mirror.... __________________ Proud owner of the Dutch "Golden 75". A much loved Gold White Metallic Rover 75 1.8 na from 2000.

5th February 2014, 20:17	#14
Supervinnie40 I really should get out more....... Rover 75 1.8 Club Join Date: Dec 2013 Location: Tilburg (Netherland) Posts: 2,615 Thanks: 572 Thanked 336 Times in 247 Posts	This is what happened: Can anybody confirm or deny that I destroyed my mirror? The black spots do dissapear, but the 'bubbles' that you can see are still visible. __________________ Proud owner of the Dutch "Golden 75". A much loved Gold White Metallic Rover 75 1.8 na from 2000.

6th February 2014, 08:34	#15
Supervinnie40 I really should get out more....... Rover 75 1.8 Club Join Date: Dec 2013 Location: Tilburg (Netherland) Posts: 2,615 Thanks: 572 Thanked 336 Times in 247 Posts	@KC13661, I found the how-to to be very incomplete and unclear about the most important part (the wiring). So after realising I ruined my mirror by trying to figure out how to wire this up, I just opened up the thing and made some pictures. Since nobody was able to comment on the wiring or give any advice I hope this will help you. Hopefully mine didn't die in vain. As far as I can tell from the switch board, the wires should be like this: RED = 12v feed BROWN = GND (ground/earth) GREY = RI (not sure, but I think it has something to do with reverse or switched live) BLACK = +0 (I think this can be ignored) WHITE = -0 (I think this can be ignored) (is also connected to GND) Small connector: GREEN = +0 (I think this can be ignored) WHITE = -0 with black stripe (I think this can be ignored) (is also connected to GND) So the way to wire this up could be: RED = 12v BROWN = Ground GREY = Switched or reverse 12v But please, don't just take my thoughts on this, ask somebody who knows for sure or wait until somebody confirms the above. As I said, I ruined mine by trying to figure this out... is going to cost me another 30 pounds.... So caution is advised. Since mine is ruined I can't test it to be sure. Mine won't go dark or lighter anymore... What will happen: When 12v goes to the red wire, and the brown is connected to a earth, the LCD plate behind the glass will get 1.46v. When a light shines on the sensor in the glass, nothing happens. When a light shines on the sensor on the back, the voltage goes down to 0.64v. When the RI (grey) is connected to 12v, the voltage will drop to 0.64v. (shining a light on a sensor won't do anything) When any other wire is connected the LCD plate will get 12v (which breaks it) So, my theory would be: When the RI (grey) gets 12v, the screen will turn light, regardless of the light that might shine on the sensor. The sensor behind the glass doesn't do anything on mine (but it might be broken!), the sensor on the back (facing the windscreen) makes the screen go dark when a light shines on it. The other wires aren't needed. RED = 12v (switched would be better I think), BROWN = ground, and GREY is optional if you want the mirror to become light when reversing. __________________ Proud owner of the Dutch "Golden 75". A much loved Gold White Metallic Rover 75 1.8 na from 2000. Last edited by Supervinnie40; 6th February 2014 at 09:21..

6th February 2014, 09:31	#16
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	Hi Vinnie, Got your PM, but I am as much in the dark as you, I can only guess and my guess is the same as yours. The mirror is obviously now destroyed, the LCD has burnt out by the looks of it. I would expect it to need... A +ve, ground, reverse and one from the parking or headlights. Reverse disables the dimming. The feed from the lights enables it to dim if the lights are on, but not in reverse. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

6th February 2014, 09:36	#17
Supervinnie40 I really should get out more....... Rover 75 1.8 Club Join Date: Dec 2013 Location: Tilburg (Netherland) Posts: 2,615 Thanks: 572 Thanked 336 Times in 247 Posts	Thanks Harry. Hopefully KC13661 has more luck with this then me. __________________ Proud owner of the Dutch "Golden 75". A much loved Gold White Metallic Rover 75 1.8 na from 2000.

6th February 2014, 10:02	#18
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	I've just checked Rave and that only shows three wires to the auto-mirror. That is obviously wrong, but that is all I could find on the subject. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

6th February 2014, 10:07	#19
Supervinnie40 I really should get out more....... Rover 75 1.8 Club Join Date: Dec 2013 Location: Tilburg (Netherland) Posts: 2,615 Thanks: 572 Thanked 336 Times in 247 Posts	I take it 'Rave' is your car? If so, any change you could perhaps check which wires do what? i.e. which is switched, which is live, which is from reverse etc? __________________ Proud owner of the Dutch "Golden 75". A much loved Gold White Metallic Rover 75 1.8 na from 2000.

6th February 2014, 10:21	#20
Greeners Moderator MG-ZTT Join Date: Mar 2007 Location: Ware, Herts Posts: 19,798 Thanks: 161 Thanked 1,249 Times in 1,036 Posts	There are a number of different mirrors and wiring schemes. On later Range Rover / Jaguars and BMW's the interior mirror is linked to the door mirrors and they also chromatically dip as well For this application, you only need +ve, -ve and a feed from the reversing lights to restore the visibility when reverse is selected __________________ *David* Impecunity is the mother of ingenuity Useful how to's for common problems Car Of The Month Jan 2014 [SatNav Power Down] [Coolant Level] [SatNav Repair] [Diesel Non Starting] [Paint Codes] [Rear Light Seals] [Reversing Light Switch] [Bleeding Brakes][Sunroof Drain] [Early ZT's][Instrument Pack Diagnostics][ATC Diagnostics]