The speedometer has 3 light sockets, are they interchangeable?

mark99

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The speedometer has 3 light sockets, are they interchangeable?
In other words, does it matter if I don't know which one goes where?
 
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Thanks Mark, that is great!
It is a little hard to tell the colors
I have the blue book, I will scan that page and enlarge it
fortunatly the multi gauge as all the lights in place, I can do one at a time
 
Thanks Mark, that is great!
It is a little hard to tell the colors
I have the blue book, I will scan that page and enlarge it
fortunatly the multi gauge as all the lights in place, I can do one at a time

Lots of grey green, and brown. The wires are distinct enough that you will be able to use the photo to decipher. Also pay attention to the factory tape. Start with the shortest wire coming out of the loom and work outward.

Also, zoom in on the pics. If you get stuck I can clean the wires to better show colors. Between pics, the wire length, wire connector type, and socket diameter, it will be difficult to screw up.
 
Mark,
All of the gauge illumination bulbs have grey or grey/blue wires; the functional bulbs have their own specific two-tone colors, black/white for the speedo hi-beam lamp.

1567887385915.png


The speedo and tacho are straightforward. The gauge cluster is a little more complex:
IMG_1499.jpg


This may help:
Gauge Wiring Pin-Out.jpg
 
Mark,
All of the gauge illumination bulbs have grey or grey/blue wires; the functional bulbs have their own specific two-tone colors, black/white for the speedo hi-beam lamp.


Thanks! this is great
Fortunately the mulit gauge has all the wires and bulbs still in place, I can switch the bulbs one at a time
Where did you find the colored wire diagram?





View attachment 74553

The speedo and tacho are straightforward. The gauge cluster is a little more complex:
View attachment 74556

This may help:
View attachment 74555
 
We have wiring diagrams that I posted on this site two years ago from the factory books. I have found that the Prosperos diagrams don’t always have the right colors.

 
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We have wiring diagrams that I posted on this site two years ago form the factory books. I have found that the Prosperos diagrams don’t always have the right colors.

Are the colored ones the Prosperos? I have the blue book, readable with a loop!
 
The top two yes they are back lighting. The bottom one is for the blue hi beam warn.


What car are we talking about?
Every coupe I know of has the turn signal light in the speedo.
Hi beam is in the combo gauge.
Forgive me if I’m lost here.
 
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