In this article we will be installing a Heads Up Display Unit (HUD) in an 89 240SX.
Editors Note: You will need to modify the dashboard to accommodate the new unit. That procedure is not covered in the article.
Skill Level2 of 5 (Minimal electrical skill)
Time Required ~1 1/2 Hours
Tools: -Phillips head screwdriver(small and medium one)-Socket wrench (1/4in works best)-10mm and 12mm sockets
Parts:
-HUD cluster (I would make sure it works before doing this)-HUD cluster wiring harness
Starting the job
1:Remove the bottom of the dash. There is 7 10mm bolts holding it in. You can see 6of them, the 7th one is hidden under the drivers kick panel. For some you may have a footwell light.
Getting to the cluster
2:Remove the covers over the steering colunm. There are 6 or 7 Phillips screws holding it together. Once the bottom is off you need to drop the steering coluum by looseing the 2 12mm bolts holding it in.
Note: DO NOT REMOVE THE BACK NUTS! JUST THE FRONT TWO!
3: Removing the cluster cover. This has 2 Phillips screws at the top above the cluster(you can see the 2 holes). You need to pull the bottom loose frist and unhook all the switches. Then VERY EASY pull down the cover
Note:You will see why you lowered the steering column before.
4:Now you can see the cluster. It has 3 screws holding it in, 1 at the top and 2 at the bottom. Once it is out there is a wiring harness that you must remove. Follow the harness to where it connects into the dash harness. This will be a white plug that you can see and a black on that is a bit tough to get to. Unplug these and pull it out.
Installing the HUD cluster.
5:Take the wiring harness that came with your HUD cluster and hook it where the old harness came from.
Putting it back together
6:Install in the reverse order or disassembly.
Note:Check the cluster to see if it works before putting the dash back together. this is done by turning the key on and if it comes up to zero then its working. If it does not work check your wire plugs. If they are fine check the audio fuse. It seems to control the HUD cluster too. If that did not work, your combination meter may be damaged or defective.
Originally written by Bandit240
