My left signal stayes on . also weather or not

If the tail lights, low fuel light, temperature gauge, and fuel gauge are not working, there could be several possible causes:

1. Blown Fuses: Check the fuses for the tail lights, low fuel light, temperature gauge, and fuel gauge. If any of these fuses are blown, replace them with a new one.
2. Loose or damaged wiring: Inspect the wiring for the tail lights, low fuel light, temperature gauge, and fuel gauge. Look for any loose connections or damaged wires. Repair or replace any damaged wires and ensure all connections are tight.
3. Faulty sending units: The low fuel light and fuel gauge are connected to the fuel sending unit in the gas tank. The temperature gauge is connected to a temperature sending unit on the engine. Check these sending units for faults, and replace them if necessary.
4. Faulty instrument cluster: The instrument cluster itself could be faulty, causing the temperature and fuel gauges to not work. A qualified mechanic can test the instrument cluster to see if this is the issue.

It's also possible that the trike has a separate electrical system for the tail lights, and that this system is malfunctioning. A qualified mechanic can test the trike's electrical system to determine the cause of the issue.

It's more likely a fuse is blown, the tail lights are on the same fuse as the dash illumination, check the tail lights if they are not working replace the fuse marked 'tail' in the fuse panel on the inside at the left side of the dash under the cover. At the same time check the 'gauge' fuse', there is a fuse location diagram on the cover.

The ground wiring on newer vehicles is a little complicated. Older cars, the ground would have been to the body around the tail-lights, but these have a ground wire in the harness and is connected to the turn-signal switch, and other sources. I don't think you have a ground problem. Does the fuse blow as soon as you press it into the fuse-block, or when you step on the brake? I believe you have a dead short somewhere, possibly a pinched turn-signal wire close to the tail-light assembly. Brake lights work through the turn-signal wires from the turn-signal switch on the steering column. That's how you can have one side blinking for turn while the other side stays on for brake. I'm kind of shooting in the dark here because I don't know what all you've done. If you replaced the turn-signal switch in the steering column, you may have pinched a wire or something there. Another thing, if the fuse doesn't blow as soon as you press it in, will both turn-signals work as long as you don't press on the brake? If you can provide a little more information, I might be able to help you more. One last thing....Have you replaced tail-light/turn-signal bulbs? If so, be sure you used the right bulb. You should only have two bulbs, one for back-up lights and one 1157-type combination for tail-lights and turn-signals. I have seen people use a single contact (1056) bulb in place of a 1157, which creates a short from brake/turn-signal back into the tail-light circuit. I do have a 1994 Dodge Dakota.

Need a new flasher they fail a lot

The turn signals and brake lights use the same circuit and filament in the bulbs. The tail lights are on the other circuit which comes from the headlight switch.
Do you have power on the tail light fuse ?

drove mine to the ends of the earth,
there are 4 books,
big main , engine,and one for trans, no PDFs back then so, none sold. just paper books.
its and old car, very old, not too many left run 1988
with that nasty French REniX EFI system/.end rant
I had the 1988 XJ too, a pair of jeeps. then....


i can see your wiring is all messed up
and grounds.

got a voltmeter,
if not only guessing and wire inspections may work
ever consider get a sparks guy to fix it? He can and easy.
I promise.
for me to teach you electrics in this box, is over the top hard.

id have inspected all those wires, every inch
and #1 is trailer wiring hacks at the rear.
the tails are not tails
if you its Parking lamp after the front parking lamps or side markers can not be called TAIL,but yes, some fuses are still using the old 1884 now TRAIL name
check fuses yet, means test them ones that look good test.
using a METER.

.
.i see there are shorts on the KEY switch IGN out pin
for sure.!! radio is off key OUT and off.
or that wires IS SHORTED
harness messed up near steering/cluster,big time.

If it happened the way you described it. I don't see how it could possibly have damaged anything. I guess what you are saying is that the left tail lights are not working? ("4 way exterior dim lights"???) Touching the tail light wire to the turn signal wire will only cause your turn signals to light up. (I am assuming that the tail light switch was on at the time)
I think it is more likely that the brown wire touched ground. This would make a bright flash, blow a fuse and cause the symptom you are describing...I think you need to check the fuse again.
There are separate fuses for the left and right sides. The left side tail lamp fuse is fuse #7 in the junction block it is a 10 Amp fuse. The junction block is located on the right cowl side inner panel - We are NOT talking about the Power Distribution Center under the hood.

All of the above is also assuming that we are talking about a plain Cherokee, Cherokee SE, Cherokee classic or Cherokee Limited.

If we are talking about any of the Grand Cherokees, you may have a fried lamp outage module.

yes there is...

I had this same symptom after I pulled a trailer that had light "issues". I tried wiggling the trailer light connector around until the trailer lights begin working. Next think I know they were not working again and now my left tail light was out. I thought it odd that is wasn't both lights out being on the same fuse, but checked wiring etc with no problems found. Mine turned out to be the "left tail light fuse" in the engine compartment fuse box. All of the parking and tail lights as independently fuse, You can tell which one it is by the guide on the fuse box lid. You will be looking for a 10 amp (red) fuse near the center of the fuse box.

rgant

Rear lights are double filament bulbs one side for the lights other side for the brake/turn signals so it still may be a bulb. Do u have a test light or volt meter you can check to make sure u have power there when brakes or turn signals are activated. Or just try another bulb.