1996 s10 pickup dash light out; fuse good

buy it used like this or just failed now 30 years later? called out of the blue failed?
name all lamps in the dash that fail there are many
we can not guess them all.
the dash has piles of cluster lamps. (errors) and has background lamps that are DIMMER controlled.
dashboards have many lamps even the shift lever does.

1. car starts and riuns good
2. HL work key on and off, headlamps
3. park ing lamps work
4. dome lamp work (door opens domes glow)
5. cluster error lamps work or not.
6. cluster back ground dimmers work or not.
7. AC panel dead. lamps yes.
8. the car has 2 or more fuse boxs, you do know that riight
9. all facts matter above to fast accurate diagnosis. (I give up)
10. this car had option AUTO lamps , got that?

F13 ,IP box is fuse that can blow. is park feed (HL) to dash
and via the DIMMER. and also glows Illumination on AC panel
THE AC active lamp is a whole other matter.
if the DIMMER works on high but not below that is a BAD dimmer control, for sure)

IP fuse F6 is for AutO Lamps OPTED CARS.


THIS MAKES NO SENSE
I the dimmer switch turn the interior light on still so I'm assuming it's still good
IF DIMMER FAILS FAILS ALL MODES THE FUSE IS BLOWN
IF DIMMER FAILS ONLY OFF HIGH THE DIMMER ITSELF IS BAD.
IT HAS ONLY 2 PINS ON IT.
HOT WITH PARK OR HL ON.
THIS PATH IS DASH AND CLUSTER ILLUMINATION FEED
OR BACKGROUND LAMPS, ONLY, FOR NIGHT DRIVING.

wow a 1988 car that runs, love to see that.
no truck model told just Truck C1500? pickup or?
I will answer for C1500 only not all trucks 1998 ever.
not sure me what dash lights mean
so the cluster back ground lamps are dead , that,
those are created from PARK (tails) lamps and there is dimmer knob on all cars for dash backbround lamps.
not talking warning lamps at all me.
forgot about the dimmer? yes, then turn it up.
if cluster is dead(all amps) the fuse is BLOWN
now the fuse is called instrument light fuse
the headlamps switch on most cars have dimmer knob to dim dash lamps,
2 fuses, GAUGE and Intrument.

Oh boy, I just went through this with my '92 Lesabre, took a long time to trace it all down, and wound up splicing in a new wire just to my instrument cluster lights. A short kept blowing fuses somewhere in that circuit.
Down where your feet go, up under the dash at the fuse panel, there is a 15 amp fuse for park/tail lights. When you hit the light switch (for heads or park lights), power is sent to that fuse, and then to the exterior park lights. There is another wire from that fuse (green wire on mine) that also goes up under the dash, and splices to several bulbs-on the radio, on the HVAC controller, on the ashtray light, also one to the under hood lamp, and then one to the dimmer/brighter switch on the dash, the rheostat that controls brightness of interior lights. One of the green splices goes into this switch, and then another wire goes from this switch to the instrument cluster for the gauge and dash illumination. I couldn't find the short, so ran a new wire from the park light fuse to the gray wire to the instrument cluster for the cluster bulbs. I bypassed the dimmer, and left off the HVAC bulbs and ashtray light. Too much trouble to wire them all up, and think my short may have been in the dimmer rheostat.
If you have a voltmeter, pull out the dimmer switch and check for power on those wires, the green from the fuse. The park light must be switched on, or the fuse has no power. There be 8 or 9 wires on that dimmer rheostat-I never did figure out where all of them went. Asked all over a Buick forum, but nobody had an answer.

The lights are powered by the dimmer switch in the headlight switch box. Power goes from there thru a 10amp fuse number 12 marked ILLUM in the interior fuse box.
Then it goes out to the lights.
You would need to know if you have power at that fuse.

ethere dimer suitch is bad or bulb on cluster you have to remove the cluster there on back of cluster hope this helps

The dash lights are controlled by the dimmer switch on the head lamp switch. Check under the dash to ensure nothing got accidentally unplugged. Also the plug in the back os the dash can come loose or a contact can burn up where it plugs in on high mileage cars and trucks. Some times you can clean the plug with a small brass brush and sometimes you have to replace the plug and or cluster depending how bad it is. Also most cars have more than one fuse box make sure to check them all.

Make sure the dimmer for the dash lights is turned up,if so,replace it,the dimmer for the dash lights is bad,if this was helpful,please rate,thank you.

Even though the relay is activated,I assumed you checked the out put?Also,You checked the voltage at the light sockets?With a meter,or test light ,check the fuse for the cluster lps,adjust them to dim,and to bright,the meter should act accordingly on the fuse.If it does not,replace the dimmer control,or head light switch,witch ever controls them.This may allow continuity to the tail lights as well.If the fuse is dead for the cluster lights,replacing the dimmer control,or head light switch will solve the problem,or,from another fuse ,supply voltage to the cluster lp fuse,one that is only hot with the key on,cause if you do this the dash lights will come on,every time you run the vehicle,day,or night.

this is more than one fault ,not a fuse more like a feed adrift somewhere ,or brake light switch +++ bulb holder or bad earth---- try the dimmer switrch on dash for the instrument lights

Is it the lights or the LEDs? If it's the lights, check the fuse first. If the fuse is good, check the dimmer switch. Do the other lights inside dim? If no replace dimmer. If yes, then you can remove the dash cluster from the dash and replace the lights. They are installed in the back of the cluster and are very cheap.