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{{ImportedFrom|site=Xenonzcar|title=Z31 Z31 Digital Dash and Climate Control Lighting Color Change|url=https://dev.z31library.com/xenonzcar_archive/z31/digitaldashcolorchange.php.html|archive=https://dev.z31library.com/xenonzcar_archive/z31/digitaldashcolorchange.php.html|fetched=2026-05-15}}
{{ImportedFrom|site=Xenonzcar|title=Z31 Z31 Digital Dash and Climate Control Lighting Color Change|url=https://z31library.com/xenonzcar_archive/z31/digitaldashcolorchange.php.html|archive=https://z31library.com/xenonzcar_archive/z31/digitaldashcolorchange.php.html|fetched=2026-05-15}}


== Z31 Z31 Digital Dash and Climate Control Lighting Color Change ==
== Z31 Z31 Digital Dash and Climate Control Lighting Color Change ==


One of the many changes I had plan on making to my 300zx is changing the interior light. The interior lighting color is controlled by "gel cap" bulb covers placed over the bulbs. On my '84, they're green. Since I have the digital package, I have to consider the color of the digital display when looking at back lighting. To begin, I will look at the climate control display.
One of the many changes I had plan on making to my 300zx is changing the interior light. The interior lighting color is controlled by "gel cap" bulb covers placed over the bulbs. On my '84, they're green. Since I have the digital package, I have to consider the color of the digital display when looking at back lighting. To begin, I will look at the climate control display. '''
''WARNING'' - Do this modification at your own risk. We Are not responsable for any issues of your own doing.
 
*WARNING* - Do this modification at your own risk. We Are not responsable for any issues of your own doing.
 
'''


=== Climate Control Back Light Color Change ===
=== Climate Control Back Light Color Change ===


To change the lighting color of your Z31 climate controls, you need to alter the bulb color.
To change the lighting color of your Z31 climate controls, you need to alter the bulb color. Typically, this is done using '''“gel cap” style bulb covers'''. Unfortunately, the stock bulbs are not a standard size, making it difficult to find gel caps that fit correctly.
Typically, this is done using '''“gel cap” style bulb covers'''. Unfortunately, the stock
 
bulbs are not a standard size, making it difficult to find gel caps that fit correctly.
The solution is to use '''DupliColor MetalCast anodized appearance paint''', available at most auto parts stores or even Walmart. This paint is '''semi-transparent''' and '''heat resistant''', making it perfect for this application. I tested red, blue, and green. Purple is also available, though I didn’t use it.


The solution is to use '''DupliColor MetalCast anodized appearance paint''', available at
https://z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/bulb_paint.jpg
most auto parts stores or even Walmart. This paint is '''semi-transparent''' and
'''heat resistant''', making it perfect for this application. I tested red, blue, and green.
Purple is also available, though I didn’t use it.


![https://dev.z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/bulb_paint.jpg Bulbs painted with MetalCast]
Painted climate control bulbs using DupliColor MetalCast paint


Mask off the base of each bulb and spray only the top with a light coat. Let them dry fully
Mask off the base of each bulb and spray only the top with a light coat. Let them dry fully before reinstalling. Below are the results of the three colors both '''in daylight''' and '''in the dark''' for comparison.
before reinstalling. Below are the results of the three colors both '''in daylight'''
and '''in the dark''' for comparison.


![https://dev.z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_green1.jpg Green bulb in the light]
https://z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_green1.jpg


Green – in daylight
Green – in daylight


![https://dev.z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_green2.jpg Green bulb in the dark]
https://z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_green2.jpg


Green – in the dark
Green – in the dark


![https://dev.z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_blue1.jpg Blue bulb in the light]
https://z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_blue1.jpg


Blue – in daylight
Blue – in daylight


![https://dev.z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_blue2.jpg Blue bulb in the dark]
https://z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_blue2.jpg


Blue – in the dark
Blue – in the dark


![https://dev.z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_red1.jpg Red bulb in the light]
https://z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_red1.jpg


Red – in daylight
Red – in daylight


![https://dev.z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_red2.jpg Red bulb in the dark]
https://z31library.com/xenonzcar_archive/z31/images/Raredare1/Dash%20lighting/hvac_red2.jpg


Red – in the dark
Red – in the dark
Line 51: Line 49:
The factory digital dash uses the standard green display color as shown below.
The factory digital dash uses the standard green display color as shown below.


https://dev.z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC04324cr.png
https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC04324cr.png
 
Stock Z31 Digital Dash with factory green illumination


=== Items Needed ===
=== Items Needed ===
Line 59: Line 59:
* 10mm socket
* 10mm socket
* Ratchet
* Ratchet
[https://dev.z31library.com/xenonzcar_archive/z31/files/Plexi-Template.pdf Template in PDF format]
* [https://z31library.com/xenonzcar_archive/z31/files/Plexi-Template.pdf Template in PDF format]


=== Procedure ===
=== Procedure ===
Line 65: Line 65:
=== Cluster Removal ===
=== Cluster Removal ===


First,[remove the combo switches](Switchpodbulbs.php)on each side of the gauge cluster. While you are under the dashboard, it's recommended to also remove the two 10mm nuts holding the power supply unit to the dashboard and unplug the two connectors.
First, [[Z31/Switchpodbulbs php|remove the combo switches]] on each side of the gauge cluster. While you are under the dashboard, it's recommended to also remove the two 10mm nuts holding the power supply unit to the dashboard and unplug the two connectors.


* Remove the 4 screws holding the digital cluster bezel in place, then carefully pull out the bezel.
#  Remove the 4 screws holding the digital cluster bezel in place, then carefully pull out the bezel.
* Remove the two screws (one on each side) securing the cluster into the dashboard.
#  Remove the two screws (one on each side) securing the cluster into the dashboard.
* Disconnect the three wiring harness plugs located across the top of the cluster.
#  Disconnect the three wiring harness plugs located across the top of the cluster.
-
#  For better access, remove the steering wheel:
For better access, remove the steering wheel:
* Remove the column covers by taking out the 4 Phillips screws. Unclip the covers from the column.
* Disconnect the key light and steering wheel control harness if equipped.
* Pull the horn pad off (start from the top). This will reveal the 19mm nut securing the wheel to the column.
* Loosen the nut but do not remove it completely. Wiggle the wheel side-to-side or use a steering wheel puller with the 8mm x 1.25 threaded holes.
* Once loose, remove the nut and pull the steering wheel off completely.


* With the steering wheel removed, you can now carefully pull the digital cluster out of the dashboard. I pull the bottom out first and then slide it towrds me being careful not to scratch the cluster lense.
#* Remove the column covers by taking out the 4 Phillips screws. Unclip the covers from the column.
#* Disconnect the key light and steering wheel control harness if equipped.
#* Pull the horn pad off (start from the top). This will reveal the 19mm nut securing the wheel to the column.
#* Loosen the nut but do not remove it completely. Wiggle the wheel side-to-side or use a steering wheel puller with the 8mm x 1.25 threaded holes.
#* Once loose, remove the nut and pull the steering wheel off completely.


https://dev.z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05090sm.png
#  With the steering wheel removed, you can now carefully pull the digital cluster out of the dashboard. I pull the bottom out first and then slide it towrds me being careful not to scratch the cluster lense.
 
https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05090sm.png


=== Cluster Disassembly ===
=== Cluster Disassembly ===


-
#  Remove the eight (8) screws from the trim and take off the outer plexi shield. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05093sm.png
Remove the eight (8) screws from the trim and take off the outer plexi shield.
#  Remove the outer trim ring from the cluster. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05094sm.png
 
#  Remove the inner plexi that contains all the lettering. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05095sm.png
-
#  Remove the metal shield with the grid pattern. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05096sm.png
Remove the outer trim ring from the cluster.
#  Pull out the green filters that you’ll replace with colored parcan gels. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05097sm.png
 
#  Inspect the LCD (Liquid Crystal Display) section. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05098sm.png
-
#  Close-up of the green filters. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05099sm.png
Remove the inner plexi that contains all the lettering.
#  Here is an example of a custom color filter printed on transparency. Parcan gels (used in stage lighting) are recommended for durability and color retention. <br />  https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05266cr.png
 
-
Remove the metal shield with the grid pattern.
 
-
Pull out the green filters that you’ll replace with colored parcan gels.
 
-
Inspect the LCD (Liquid Crystal Display) section.
 
-
Close-up of the green filters.
 
-
Here is an example of a custom color filter printed on transparency. Parcan gels (used in stage lighting) are recommended for durability and color retention.
 
=== Center Pod Gauges & Stock Radio ===
=== Center Pod Gauges & Stock Radio ===


For the center pod gauges, the process is similar, but you’ll need to remove the circuit board to access the color sheet. The stock radio has green filters in the buttons and small rubber “condoms” for the LCD display.
For the center pod gauges, the process is similar, but you’ll need to remove the circuit board to access the color sheet. The stock radio has green filters in the buttons and small rubber “condoms” for the LCD display.


https://dev.z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05270sm~0.png
https://z31library.com/xenonzcar_archive/z31/images/Digidashcolorchangecluster/DSC05270sm~0.png


Finished Digital Dash
Finished Digital Dash

Latest revision as of 22:54, 20 October 2026

Imported page. This page was converted from an archived copy of "Z31 Z31 Digital Dash and Climate Control Lighting Color Change" (Xenonzcar, fetched 2026-05-15). The conversion was mechanical, so tables, links and formatting may contain conversion artefacts. Compare against the archived copy if something looks wrong. The content belongs to its original authors.

Z31 Z31 Digital Dash and Climate Control Lighting Color Change[edit]

One of the many changes I had plan on making to my 300zx is changing the interior light. The interior lighting color is controlled by "gel cap" bulb covers placed over the bulbs. On my '84, they're green. Since I have the digital package, I have to consider the color of the digital display when looking at back lighting. To begin, I will look at the climate control display.

  • WARNING* - Do this modification at your own risk. We Are not responsable for any issues of your own doing.

Climate Control Back Light Color Change[edit]

To change the lighting color of your Z31 climate controls, you need to alter the bulb color. Typically, this is done using “gel cap” style bulb covers. Unfortunately, the stock bulbs are not a standard size, making it difficult to find gel caps that fit correctly.

The solution is to use DupliColor MetalCast anodized appearance paint, available at most auto parts stores or even Walmart. This paint is semi-transparent and heat resistant, making it perfect for this application. I tested red, blue, and green. Purple is also available, though I didn’t use it.

bulb_paint.jpg

Painted climate control bulbs using DupliColor MetalCast paint

Mask off the base of each bulb and spray only the top with a light coat. Let them dry fully before reinstalling. Below are the results of the three colors both in daylight and in the dark for comparison.

hvac_green1.jpg

Green – in daylight

hvac_green2.jpg

Green – in the dark

hvac_blue1.jpg

Blue – in daylight

hvac_blue2.jpg

Blue – in the dark

hvac_red1.jpg

Red – in daylight

hvac_red2.jpg

Red – in the dark

Changing your Digital Dash Gauge Color[edit]

The factory digital dash uses the standard green display color as shown below.

DSC04324cr.png

Stock Z31 Digital Dash with factory green illumination

Items Needed[edit]

Procedure[edit]

Cluster Removal[edit]

First, remove the combo switches on each side of the gauge cluster. While you are under the dashboard, it's recommended to also remove the two 10mm nuts holding the power supply unit to the dashboard and unplug the two connectors.

  1. Remove the 4 screws holding the digital cluster bezel in place, then carefully pull out the bezel.
  2. Remove the two screws (one on each side) securing the cluster into the dashboard.
  3. Disconnect the three wiring harness plugs located across the top of the cluster.
  4. For better access, remove the steering wheel:
    • Remove the column covers by taking out the 4 Phillips screws. Unclip the covers from the column.
    • Disconnect the key light and steering wheel control harness if equipped.
    • Pull the horn pad off (start from the top). This will reveal the 19mm nut securing the wheel to the column.
    • Loosen the nut but do not remove it completely. Wiggle the wheel side-to-side or use a steering wheel puller with the 8mm x 1.25 threaded holes.
    • Once loose, remove the nut and pull the steering wheel off completely.
  1. With the steering wheel removed, you can now carefully pull the digital cluster out of the dashboard. I pull the bottom out first and then slide it towrds me being careful not to scratch the cluster lense.

DSC05090sm.png

Cluster Disassembly[edit]

  1. Remove the eight (8) screws from the trim and take off the outer plexi shield.
    DSC05093sm.png
  2. Remove the outer trim ring from the cluster.
    DSC05094sm.png
  3. Remove the inner plexi that contains all the lettering.
    DSC05095sm.png
  4. Remove the metal shield with the grid pattern.
    DSC05096sm.png
  5. Pull out the green filters that you’ll replace with colored parcan gels.
    DSC05097sm.png
  6. Inspect the LCD (Liquid Crystal Display) section.
    DSC05098sm.png
  7. Close-up of the green filters.
    DSC05099sm.png
  8. Here is an example of a custom color filter printed on transparency. Parcan gels (used in stage lighting) are recommended for durability and color retention.
    DSC05266cr.png

Center Pod Gauges & Stock Radio[edit]

For the center pod gauges, the process is similar, but you’ll need to remove the circuit board to access the color sheet. The stock radio has green filters in the buttons and small rubber “condoms” for the LCD display.

DSC05270sm~0.png

Finished Digital Dash

Sources Used[edit]

  • Digital Climate Control Written by: Redare
  • Digital gauge Cluster Written by: Z_Karma