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sprinkles08
sprinkles08, ASE Certified Technician
Category: Jeep
Satisfied Customers: 21581
Experience:  Chrysler/Dodge/Jeep Master Certified, ASE Master and Advanced Certified, Trans and Hybrid Specialist
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My issue is no tail lights,fuse box inside doesnt show a

Customer Question

Customer: ***** *****, My issue is no tail lights,fuse box inside doesnt show a fuse for tail lights
JA: Thanks. Can you give me any more details about your issue?
Customer: turn head lights on & there is no tail lights,brake lights work
JA: OK got it. Last thing — JustAnswer charges a fee (generally around $18) to post your type of question to Jeep Experts (you only pay if satisfied). There are a couple customers ahead of you. Are you willing to wait a bit?
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Submitted: 11 months ago.
Category: Jeep
Expert:  bill replied 11 months ago.

I need the vin to pull the correct wiring diagram for your jeep

Customer: replied 11 months ago.
1J4fj58l3kl530591
Expert:  bill replied 11 months ago.

that's an invalid vin what is the year engine size and model of your jeep?

Expert:  bill replied 11 months ago.

i'm sorry it looks like it's an 89 Cherokee which I do not have any diagrams for, I am going to opt out and reopen this another expert will be along shortly

Expert:  sprinkles08 replied 11 months ago.

Hello and welcome to JustAnswer!

If the rear park lamps are the only ones not working ten it's going to be a wiring issue or possibly just the bulbs, but if all ark amps aren't working then it could be the headlamp switch or a blown fuse.

ARe the front park lamps working?

Customer: replied 11 months ago.
Head lights work, changed blown 10 amp fuse,tail lights still not working
Expert:  sprinkles08 replied 11 months ago.

ARe the front park lamps working?

Customer: replied 11 months ago.
If you mean head lights, yes
Expert:  sprinkles08 replied 11 months ago.

Not the headlamps, the park lamps. The lamps that come on in the front and rear when the switch is turned on the to the first position, and stay on with the headlamps. The rear park lamps are red, the front are amber.

Customer: replied 11 months ago.
Rechecked, no they are not working
Expert:  sprinkles08 replied 11 months ago.

I didn't think they would be.

What fuse did you find blown?

Did it blow again?

Customer: replied 11 months ago.
Finally light enough to see. The park lamp fuse,yes it was blown again
Expert:  sprinkles08 replied 11 months ago.

Did the problem start after any work was done, an accident, etc?

Customer: replied 11 months ago.
I can't say for sure,except the cooling system needed looked at,have only had the jeep for 3 months
Expert:  sprinkles08 replied 11 months ago.

If you replace the fuse again does it blow immediately or do you have to turn the lights on?

Customer: replied 11 months ago.
Have to go buy more & will see.
Expert:  sprinkles08 replied 11 months ago.

Ok.

Customer: replied 11 months ago.
Fuse blows when I pull out light switch to the first position
Expert:  sprinkles08 replied 11 months ago.

Do you have trailer wiring?

Customer: replied 11 months ago.
Not that I am aware of or see
Expert:  sprinkles08 replied 11 months ago.

Does it have an aftermarket radio by chance?

Customer: replied 11 months ago.
it does, I believe the gut I bought it from put it in
Expert:  sprinkles08 replied 11 months ago.

There is a short to ground somewhere on the park lamp circuit. The problem may be in the switch itself but it's more likely to be a wiring issue. The circuit would go to the radio, assuming it was wired correctly, aftermarket radio installations with poor wiring practices is a common cause of this. If the circuit is shorting to ground in the dash or to the radio itself because of an unprotected connection or the wire is pinched that would explain it.

Otherwise, the circuit is shorted to ground somewhere between the switch and any of the park lamps in the front or rear. A visual inspection of all visible wiring in these areas should be done, if nothing is seen then it will take some deeper electrical testing to determine where the short is and repair it. The park lamp circuit wire may be rubbed through, pinched or melted at any point in the harness.

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