Pull the dash off and then the instrument panel off and it is connected to the back of the instrument panel itself, easy to do but a lot of work.
Or if you have a desired color that you want in your instrament pannel, go to auto zone and the have these flexable strip lights you can wire into the headlight swich, its a little easier and it looks cool too!!!
The bulb is most likely burned out. You have to remove the instrument cluster to replace it.
Replace the light bulbs that are burned out, usually from the back side of the instrument cluster.
Remove the dash cluster to gain access to the bulbs.
all of the bulbs in the instrument panel are on the backside of the instrument cluster.which means unless you can reach up under the dash to get to them you wiil have to remove the instrument cluster.
One or more of the instrument cluster lamps may be burned out. These lamps can be a real pain to replace, so you may want to check the service manual to find the procedure for replacing them. burnt bulb
Just replace the light bulb.
You have to pull the instrument cluster out of the car. On the back of the cluster are numerous bulb sockets. Turn the sockets (sort of the same way you have to turn the sockets to remove say..taillight bulbs except the wiring to these bulbs goes through the same printed circuit that feeds the rest of the instrument cluster) The sockets and bulbs should come right out. Pull the bulbs out of the sockets and take them to an auto parts store. Get the auto parts store to verify which bulbs you need (don't want to go to all this trouble and fing out you put the wrong bulbs in). Reinstall the bulbs in the socket and reinstall the sockets on the back of the instrument cluster and then reinstall the cluster.
First off are your dash lights out if so its more likely to be a fuse that you need to replace check your owners manual the dash lights in a corolla are LED lights so its not likely they have burned out. if your looking to change the color of the bulb go to an audio installer for directions on removing your dash panels to get at the bulbs to replace them there's one in your center section and i don't know about the instrument cluster
It could be because the bulb is burned out ot he wire is disconnected.
It Should Be Number 4. If It Is OK , Then Check # 1. If All Fuses Are OK Your Instrument Cluster May Be Burned Out. This Is Just About Always A Dealer Repair.
from in the trunk behind the carpet
the bulbs which run the indicators are probably burned out. i would probably try to find bulbs before removing instrument cluster. bulbs may be hard to find. save yourself a project