Hello,
my '94 FJ80's night time dash illumination is not working on anything. I've had an 80 series before (and the dash lights worked) but I don't recall exactly what should be lighting up to begin with.
I took the dash apart hoping it was bad or missing bulbs, but the bulbs look ok and test fine with an ohm meter. The HVAC heater/fan controls have 3 bulbs in them, and those do not light up either. Mini LEDs inside various buttons work (HVAC, power window, rear window defrost orange light), and my regular cluster gauge warnings/lights such as brake/oil/PWR/Gear position/turn signals/headlights and the d@mned ABS light (the ONE light I wish was NOT on). My next guess is the dash dimmer switch is bad but I'm not sure how to test it. Using a multimeter, I get 12V at one of the pins on the harness when I turn the headlight switch on. It's the pin by itself turned 90 degrees from the other 2 pins. But I don't know how to test the other 2. The digital dash clock works, and it even dims when I turn the headlights on, but I'm thinking that's on a different circuit. I do not have a repair manual at this point. I thought I did (from my last '80 series), but I can no longer find it. The radio is aftermarket and does not dim (and may not be capable of dimming). The truck had a stock alarm at some point but the RS3000 unit is missing from under the seat, but I see evidence of aftermarket wiring spliced into the "Security" light to the left of the steering column. The dimmer switch is plugged in. I even took it apart but didn't see anything visually obvious or wrong with it.
All fuses are ok.
Any ideas?
my '94 FJ80's night time dash illumination is not working on anything. I've had an 80 series before (and the dash lights worked) but I don't recall exactly what should be lighting up to begin with.
I took the dash apart hoping it was bad or missing bulbs, but the bulbs look ok and test fine with an ohm meter. The HVAC heater/fan controls have 3 bulbs in them, and those do not light up either. Mini LEDs inside various buttons work (HVAC, power window, rear window defrost orange light), and my regular cluster gauge warnings/lights such as brake/oil/PWR/Gear position/turn signals/headlights and the d@mned ABS light (the ONE light I wish was NOT on). My next guess is the dash dimmer switch is bad but I'm not sure how to test it. Using a multimeter, I get 12V at one of the pins on the harness when I turn the headlight switch on. It's the pin by itself turned 90 degrees from the other 2 pins. But I don't know how to test the other 2. The digital dash clock works, and it even dims when I turn the headlights on, but I'm thinking that's on a different circuit. I do not have a repair manual at this point. I thought I did (from my last '80 series), but I can no longer find it. The radio is aftermarket and does not dim (and may not be capable of dimming). The truck had a stock alarm at some point but the RS3000 unit is missing from under the seat, but I see evidence of aftermarket wiring spliced into the "Security" light to the left of the steering column. The dimmer switch is plugged in. I even took it apart but didn't see anything visually obvious or wrong with it.
All fuses are ok.
Any ideas?
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