Instrument cluster, shifter console and AC control panel background light (night lights) doesn't light up

[ENG MB]

Hi all,
I have a 2000 LC100 and last night I realized that there was no light on the Instrument cluster, shifter console and AC control panel background when I turned on the light. All of the gauges work fine and warning lights like battery, check engine, etc, Other than that on the AC control panel for example the AC turn-on/off lights work but no lighting in the background (please see the pictures). So I am unable to see the gauges in the night. Checked the Gauge fuse and all fuses either under the hood or on the driver-side foot, they seem fine. but I am not sure about the relays and which one to check. Also, please let me know if I should check anything else other than fuses.
Appreciate your time in advance.
Cheers,
Mehran

 

[TLCPNW]

Looks like your dimmer switch there under the gas gauge is out. Same thing happened to me. eBay is your best bet.

 

[ENG MB]

Looks like your dimmer switch there under the gas gauge is out. Same thing happened to me. eBay is your best bet.

I tried to bypass the dimmer switch by connecting the three wies together as it was suggested by some folks in the forum to make sure that the dimmer switch is out, but it didn't work unfortunately.

 

[nissanh]

Did this happen all of a sudden? Possibly all are using a same ground wire and it may be loose? If you have a wiring diagram, you can track the common ground location.