R33 Auto Cluster Gear Doesn't Lit Up?

[denzahog]

Hi, I've got an r33 auto transmission. I just noticed last week that when I have the gear in D mode, the light in the dash doesn't lit up at all? The others P R N 1 2 all. lit. up perfectly.. jst the D? I doubt it has an individual bulb for that? any ideas? Haven't pulled cluster out yet

[89CAL]

Well your certainly not going to fix it with the cluster in.

Just pull it out and have a look. I dare say it will have an individual globe. To me the trans ECU would get a signal from the gear selector then output a signal to the corresponding globe on the dash

[denzahog]

I will pull it out on the weekend but I was jst googling diagrams on it and it seems not to have an individual bulb for it. I just didn't wanna pull everything apart n then find out its nothing to do with the cluster that's all. If it's definitely a bulb issue then I would pull it apart. so far I've google a diagram for it and it doesn't seem like it has an individualbulb for it

guess like u say.. only way to find out is pull it apart!

[89CAL]

Having a bit of a look into the wiring diagrams I have, and on FAST, it does look like a bit of an odd setup. I'd pull it out and have a look. It must send some sort of signal to the dash from the A/T controller so I'd say its either a bulb (if they run 1 bulb per gear displayed) or an open circuit/broken wire to the dash

Again, its a strange setup so I may be wrong, but thats where I'd start

[89CAL]

If this helps, not sure if it will. If you have a multimeter, you may be able to check for a circuit from the selector to the dash, but I'm not real sure thats how it works.

[denzahog]

Thanks. for that diagram, it'll definitely help when I get a mechanic mate of mine to check it out. If he knows, lol.

I pulled the cluster out today.. and there isn't an individual bulb for it, I took all bulbs out n in to test.. so maybe it's some wiring on a circuit or something sort.

[89CAL]

I looked on FAST and it looks like it may be a printed circuit board. Not at my computer right now so cant put the parts breakdown up but you may find that it runs a printed circuit board with LED's built into it then a lense plate over the top

Good news however is that the printed circuit board part is only $66 (US) from Amayama so if you are really keen to fix it then it shouldn't cost too much assuming it comes out of the dash easy enough

[zoomzoom]

Thanks. for that diagram, it'll definitely help when I get a mechanic mate of mine to check it out. If he knows, lol.

I pulled the cluster out today.. and there isn't an individual bulb for it, I took all bulbs out n in to test.. so maybe it's some wiring on a circuit or something sort.

Really? I have a stagea but the cluster should be very similar. Theres a bulb for every shifter position. Otherwise how would it light?

The plastic knobs on the back of the cluster are T5 bulb holders.

Its an opportunity to change them all to LED if you so desire (white light makes the dials blue, due to a filter inside the cluster)

Just dont put an LED in the low fuel light.

[denzahog]

I looked on FAST and it looks like it may be a printed circuit board. Not at my computer right now so cant put the parts breakdown up but you may find that it runs a printed circuit board with LED's built into it then a lense plate over the top

Good news however is that the printed circuit board part is only $66 (US) from Amayama so if you are really keen to fix it then it shouldn't cost too much assuming it comes out of the dash easy enough

Thanks! That helped a lot! Think it'll be a lot cheaper jst getting a 2nd hand cluster So far it's not really bothering me.. but if i do get annoyed with it and come across a good and cheap cluster, i might change it around

[sonicz]

I don't think its the bulb, its some electrical component. The reason I know is you think its been burned out for years and then it starts working again.

Edited September 28, 2015 by sonicz