Converting a 1990 Mazda Miata interior with LED’s

by Michael Bednar

Remember, LED’s are polarity specific.  If you install an LED and it fails to light, turn it 180 degrees and try again.

All LED’s were purchased from http://www.superbrightleds.com/

1990 Mazda Miata
LED CONVERSION
Interior Lighting		Qty	Mazda Part Number	Light bulb Part Number	LED Part Number	Mazda Cost	SuperBriteLED Cost
	Map Lights (Stock)	2	000011302	Festoon 3022	3022-WWHP4	$2.29	$6.95
	Floor Lights (Modified)	2		Festoon 3910	3910-WW6		$3.70
	Heater/AC controls control lighting	2	NA01-61-C95	74	74-WWHP3	$4.28	$3.49
	Heater/AC controls A/C indicator	1	NA03-61-C95	74 dim	74-BHP	$4.28	$2.49
	Heater/AC controls A/C control lighting	1	NA02-61-C95		NEO3-W Instrument Cluster	$4.07	$1.29
	Ashtray Light	1	362575139	74	74-GHP3	$3.69	$3.49
	Automatic PRNDL	1		194	WLED-WHP5 194 Wedge		$5.95
	High Beam Indicator	1		194	WLED-BHP		$4.95
	Hazard Switch	1	NA01-66-462		NEO3-R Instrument Cluster	$4.85	$1.29
	Barn Doors Switch	1	NA01-66-462		NEO3-W Instrument Cluster	$4.85	$1.29
	Dimmer	1	BR7055431		NEO4-W Instrument Cluster	$4.97	$1.29
	Gauges	4	362575139	194 w/Green Sleeves	WLED-WHP5 194 Wedge	$3.69	$5.95
	Gauges	4	R49155431	74	74-RHP	$4.28	$2.49
	Gauges	3	R49155431	74	74-AHP	$4.28	$2.49
	Turn Signals	2	R49155431	74	WLED-GHP	$4.28	$4.95

 

I just finished the LED conversion in my 1990 Miata and thought I’d share the information that I’ve garnisehd over these past few weeks in hopes of saving time and money on their own project.

I started with the HVAC controls as they are easy to get to for the LED replacement.  I did read that you could use Finger Nail polish remover to remove the green from the Instrument gauges and I immediately thought that would work for all of the control panels in the car.  Wrong!  The HVAC has the colors layered on a clear sheet.  Black, white and green.  Removing the green with fingernail polish remover WILL remove the green, white and black.    I had to buy a replacement which is a different story alltogether.  Not all parts are created equal through the NA’s

To remove all the bulbs in the HVAC control unit you will need to remove the full assembly from the center console.  Two are hidden beneath the fan dial, which happens to be glued in place.  Do not remove the fan graphic.  Removing it may result in the ink being removed from it’s clear acetate surface.

This is the underside of the HVAC unit.  The two far left locations require removal of this unit in order to replace.

The left side of the HVAC unit requires two size 74 bulb and one mounted on it’s own fitting.  This shows the LED equivilant that I used.

WW=Warm White  W=White (although the switch has a green colored gel built in)
Revision: I replaced the lower left LED with the following part number 74-BHP  (Brighter Blue on the A/C indicator light)

 

The right side of the HVAC requires one 74-WWHP

 

The hazard and Headlight (Barn Door) retractor switch requires two LED’s.  Both had the green sleeve around the bulb which gave the green glow.  I use a red LED for the flasher and a white LED for the Headlight Switch.  Both are subtle when lit and provide adequate lighting in the dark.

NEO3-R  and NEO3-W

 

The center console as I have done mine.

 

Yes, the mileage is correct.