i think you ment IP cluster backlights dead not warning ligts
that is real the huge parking light structures.
a blown fuse. it is, why not test them ? first.
either cab fuse or the engine bay fuse box.
12vdc on both sides of fuse, is a good fuse, key on.
100% accurate test. no guessing. ever with voltmeter.
(rare exceptions a car with a ground fuse, very rare)
so lets do this the hard way, no fuse tests......
but hark the fsm is free. why not just look at the road map er, schematic, (wiring diagrams)
lets do HL , they are hot all the time, keys lost .
your car is a TJ so having a TJ book is spiffy , no? KEEN?
lets do that. TJ wiring
now click wiring, following me?
posted this 100 times,., here.
my guess is parks are dead High beams good, right, ?????
yes then go to JUMP 1.
HL dead highs and low beam? parks out.(aka TAIL)
PDF page # 92
fuse PDC #17 blown? kills cluster dead too
JUMP1: parks dead.
had lamps is fuse #1, jb (page 134 pdf)
then PDC fuse 4 and 10 (lows and highs)
PDC is engine bay box.
JB is cab box.
so my guess (hard way)
fuse 10 and CB 24 was blown. kills high/low beams
Fues1 and 4 only parks. and cluster dimmer feed.
page 134 makes all this childs play with a meter.