so only park tail left is out. you never said
only!
way was brake mentioned??????
did you scan it first, id bet not. and is key. on all modern cars.
and test all fuse. lacking any FSM book (schematic)
one is forced to test all fuses. we use a voltmeter.
12v fuse 12v is a good fuse.
12v and 0v is bad
easy no?
one some cars (yours), you turn on parks (1st click)
and all 4 corners of car glow, bingo for park and license lights.
how.?
the park switch goes to the BCM BRAIN(input ports)
It SEEs that demand. and then closes the park relay. with fuses
bam all parks glow or some , left and right.
for sure i dont know lacking YOUR book
my point?
well if you didnt scan , how can you fix it beyond fuse
any relay guessing>?
im not sure which book is best. call them?
https://www.techauthority.com/en-us/products/?year=2003&model=431
my public library has mitchels there,so.... look?
here ,ill log in to mine and see.
ok it is BCM system
fuse 23 and 9 are are park JB fuses. left is 23
the relay is in the JB,JB means fuse junction box.
can i assume youve found all fuse boxes in cab and engine bay
that be like first... find them all.
so now i know the BCM is ok and relay park is closed
and for sure working,
so my guess, is fuse 23 has hair line cracks.
we test all fuses that look good, no guessing.
easy peasy jeepineesey
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