blinker stuck on- update- 99 jeep cherokee classic

I took the car in to be diagnosed and I'm told it's going to need a new
wiring harness (it will be about $600 with the diagnosis, parts and
labor). Mechanic said that this would be cheaper than trying to figure
out which of the 50+ wires in the area might be damaged.

I suppose these hidden problems often occur when buying a used car but
I thought that I had covered my bases by having a 1 hr "bumper to
bumper" safety inspection prior to purchasing it.


blinker stuck on
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From: jczap - view profile
Date: Tues, Sep 5 2006 9:36 am
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when i have my headlights turned on, my left blinkers are stuck on but
do not blink.
when i have my headlights off, my left blinker works fine but the car's


digital clock blinks on and off.


has anyone else had a similar problem? is it something that is
difficult to fix? thanks.


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From: DeserTBoB - view profile
Date: Tues, Sep 5 2006 10:15 am
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You have a rather interesting electrical problem that seems to trace
back to the fuse block. Has this car been in a wreck or had any major
work done lately, or did it just start happening? It sounds to me as
if the panel light circuit is somehow shorted to the left turn signal
circuit. It could be happening anywhere in the dash panel circuit as
well, which sounds like the probable cause. If the dash TS indicator
is somehow shorted to the panel light circuit, that'd do it for sure.

I'm curiously reminded of the home center commercials where the guy
puts in a ceiling fan, throws the switch to show off to his old lady,
and the sprinklers come on.


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From: jczap - view profile
Date: Tues, Sep 5 2006 10:43 am
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I'm not sure if this problem has been going on for awhile or if it just

started- I bought the car used from a private owner last week. The
carfax report didn't say that it had been in any accidents. It is
possible that the former owner tried to fix it himself because the
cover to the fuses is missing.

I take it that this problem is too difficult for a novice like myself
to fix? Is it likely to be expensive to repair? Thanks.



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From: DeserTBoB - view profile
Date: Tues, Sep 5 2006 11:00 am
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There ya go! Bumbling owner tried to fix, couldn't, sold his troubles
to someone else. Trouble could be in the fuse block, but could also
be up in the dash. What seems to be happening is that the LH turn
signal circuit is crossed with the dash light circuit...that's why
your digital clock is probably flashing from dim to bright, rather
than on and off. First clue: pull the instrument lamp fuse, and the
turn sigs may start working.

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From: jczap - view profile
Date: Tues, Sep 5 2006 12:22 pm
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thanks for the guideance!

will the instrument lamp fuse be labeled in some way?


I also noticed this posting online, in which a person seemed to have a
similar problem. do you think (like the discussion below) a bulb could

be a problem or because the clock is flashing there is likely a short.


thanks again


Turn Signal Lamp Stuck On
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From: Spiderman - view profile
Date: Wed, Jul 9 2003 2:11 am


The left turn signal indicator in the dash is stuck ON only when the
headlights are turned on. The left turn bulb on the front blinks when
turning, but is off otherwise...unlike the right front turn bulb. Are
you
telling me that the steady left turn signal indicator is telling me to
replace the front left turn bulb?






I think its telling you that you have a bulb burned out. Its not the
turn
signal bulb. Its in the turn signal housing but its a small bulb that
can
be seen from the side of the truck. Turn on your park lights and look
at
the right side of the truck. You have a parklight that is seen from
the
front and another (smaller) light that's seen from the side. If you
turn on
the right blinker, it blinks in front and on the side. Do the same on
the
left. The small bulb to the side of the truck is not working. This
might
all be for nothing, cause I've been wrong before. GM started this
stuff in
the 70's I think. On older trucks, it was a "clearance" light in the
fender
(separate from the turn signal, but it blinked with it.)
..



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From: DeserTBoB - view profile
Date: Tues, Sep 5 2006 1:44 pm
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Yes, on GM and Chryslers, I've seen it variously as "INST LPS" and
"PNL LPS", and maybe a couple of others.

A "bulb" itself isn't the problem, but I've seen cases where the bases
on bayonet style "twist in" panel lamps weren't installed properly and
one of the contact would be rubbing another trace on a printed wiring
board, although that's a stretch.

Trouble's somewhere in the dash lamp circuit, and I bet there's a
cross between the instrument lamp circuit and the LH turn signal
indicator circuit, probably in the instrument cluster itself.
Obvously, some goof has been rummaging around in the fuse panel
already. Hint: the cover to the fuse panel is most likely under the
driver's seat, where I usually find them all.


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From: Steve B. - view profile
Date: Tues, Sep 5 2006 5:51 pm
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Start by checking / replacing the bulbs on the left side. The turn
signal bulbs have two filaments in them. It is possible for one
filament to fail, break, and then fall on to the other filament. When
this happens all sorts of weird things start happening with the
lights.

First thing I would do would be to check those bulbs very carefully
for a broken filament or replace them or swap them to the other side
and see if the problem goes away (or moves to the other side if you
swap them).


Steve B.


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Get a second opinoin a good auto elec should be able to trace the hassle.
Lushy in Australia

 

You should take the vehicle to an auto electric shop to be diagnosed,
not a dealer.

Steve B.