None of the dash lights work on my climate control system. The tempature wheel, fan control and buttons do not light up. Could it be a fuse for these lights or all the bulbs are burned out. Also my outside tempature indicator does not light up anymore, is there a bulb for that or is it the LED unit.
Thanks for your help in advance.

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1990 190E 2.6
1996 Grand Voyager 3.3
1985 Mustang GT 5.0 5 SPD
1982 Suzuki GS 750T