Jeep

Have Jeep Questions? Ask a Jeep Repair Expert for Answers

Ask an Expert,
Get an Answer ASAP!

Jeep

Brake light issue, Last service full, 05 liberty, Tested

Customer Question
Brake light issue JA: Have you...
Brake light issue
JA: Have you checked the brake fluid? How's the level and when was it last changed?
Customer: Last service full
JA: What is the model/year of your Jeep?
Customer: 05 liberty
JA: Are you fixing your Liberty yourself? What have you tried so far?
Customer: Tested power from brk switch and have power to rear
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 1 year ago.Category: Jeep
Show More
Show Less
Ask Your Own Jeep Question
Answered in 1 minute by:
10/29/2016
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago
Mike V.
Mike V., Auto Service Technician
Category: Jeep
Satisfied Customers: 26,267
Experience: 25 years of experience, Certified Subaru Technician and Nissan factory trained.
Verified

Thank you for your question!
My name is ***** ***** give me a moment to review your question and respond with the assistance you need!

Ask Your Own Jeep Question
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Just to be clear here, you are saying you have power to the brake light sockets on the back?

Ask Your Own Jeep Question
Customer reply replied 1 year ago
i have power comming off the brake light switch harness, countinuty at the points on the switch. When pedel is pressed down i have power at the tan/wt wire in the rear both sides
Customer reply replied 1 year ago
If im not mistaken the turn singals and parking lights receive the same ground as the brake light?
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Ok,

Thanks for that info. Please give me a moment to pull up the wiring diagram and see what I can do to help.

I assume you have replaced the bulbs already?

Ask Your Own Jeep Question
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

I am actually going to check that ground right now, please stand by.

Ask Your Own Jeep Question
Customer reply replied 1 year ago
Didnt replace the blubs but switch the brake light blub into the parking socket and it work. Also, jump the brake light blub with the tan/white wire and a ground and it work with the brake pushed in
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Sorry, you lost me.

You have power at the white/tan wires out at the sockets but with a bulb in that socket you don't get brake lights?
However when you put it in the parking light socket you got brake lights when you step on the brake?

Ask Your Own Jeep Question
Customer reply replied 1 year ago
No, i have parking lights and turn singals, so i put the brake light into the parking light socket to see if the light was good or bad with it in the parking light socket it was good. It also has countiuty across the blub.
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Gotcha, sorry.

Just tested the bulb, my brain is in the wiring still.

Does the high mount brake light work?

Ask Your Own Jeep Question
Customer reply replied 1 year ago
I also took the brake light and jumped it off the wt/tn wire that goes in the main harnness and a ground and with the brake pedel pushed in the brake light worked
Customer reply replied 1 year ago
No it doesnt but it has power in the wt/tn wire with brake pushed in.
Customer reply replied 1 year ago
Does the top brake light play any role in completing the circut? Looking at the wiring diagram it feeds of the wt/tn wite from brk switch but has a seperate ground correct??
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Ok

They are all using the same grounding point G304 is the ground. However it would seem like if the parking lights and signals are working the ground should be good.

If you rig up something to connect the test light to on the power side, like a small piece of wire, you could then use the other end of the test light to check the ground. If it lights, then you know the ground is good. If not, then trace the ground and locate the break in it.

Ask Your Own Jeep Question
Customer reply replied 1 year ago
The ground going to the left and right side of the rear sockets is the blk/white wire??
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

My diagram is showing solid black on the left and right, but black/white stripped on the high mount

But actually for the high mount it's G303 not 304 on the left hand drive model. Assuming you are in the US, this would mean it's a different grounding point, however possibly in the same harness.

Ask Your Own Jeep Question
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

And it also looks like it starts out solid red at the high mount socket and changes to bl/white

Ask Your Own Jeep Question
Customer reply replied 1 year ago
im testing from the rear right tail light assm. I back probed with wires out of the main harness with power supplied and brake pressed in. I connected the clip to the wt/tn wire and the probe point to the solid black wire and the test light shows good and reads around 12v
Customer reply replied 1 year ago
I also did the same with the blk/wht wire that runs in the asm and same thing happened
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Ok

from what you are saying then, either the sockets themselves are no good or the bulbs. I do think that the bulb for the parking and turn signal should be a different bulb then the stop light, but still, you have all you should have when you are testing. Including a good ground source or the test light/meter wouldn't show any voltage with that test you just sent to me.

Ask Your Own Jeep Question
Customer reply replied 1 year ago
Are you talking about the socket that the blub itself is in or the socket that is part of the assembly. And what would make the whole light assm go bad
Customer reply replied 1 year ago
Are you still there
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

I am talking about the socket the light bulb goes into and I am sorry, I didn't get any notification that you replied to me.

Ask Your Own Jeep Question
Customer reply replied 1 year ago
Is possible that the whole circuit board for the light assm is bad. If it was the light/socket asm it would have worked when i jumped it with power/grnd
Customer reply replied 1 year ago
Wouldnt have worked or worked when i switched into the parking light slot
Customer reply replied 1 year ago
When looking at the circut board assm. Where the metal connections are in each light slot should all of them have countinuty across them
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

I don't have a blow up of the circuit board so I cannot answer the question about continuity for you

I guess what I am seeing here is you have power on the right wire, and you have ground on the right wire, so it should stand to reason that the bulb or the socket is the issue. Since the socket is part of the circuit board, then the board would have to be the problem in my opinion, you have everything you need to light a bulb.

This is the only thing that makes any sense to me on this to be honest.

Ask Your Own Jeep Question
Customer reply replied 1 year ago
That is what is what i came up with. I test the board sockets parking light has continuity, turn socket has continuity, but not continuity in the brake socket. Going to order and keep fingers crossed
Customer reply replied 1 year ago
But....just dont see how both could go bad
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

I am thinking one was went bad, don't notice, suddenly no brake lights and everyone notices!

I really think that's how it went down, they probably didn't go bad together, it just seems that way.

Please let me know what more I can do to assist you today. Also, please remember to rate my answer, Just Answer does not compensate me for my time and resources. Follow up questions are included in the price of your question. If you are using the free trial, or have a subscription a rating is still required.
Thank you so much!

Ask Your Own Jeep Question
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Hadn't heard back and was wondering how you made out with this?

Ask Your Own Jeep Question
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Do you need further assistance with this?
Did replacing the boards resolve the issue?

Ask Your Own Jeep Question
Ask Mike V. Your Own Question
Mike V.
Mike V.
Mike V., Auto Service Technician
Category: Jeep
Satisfied Customers: 26,267
26,267 Satisfied Customers
Experience: 25 years of experience, Certified Subaru Technician and Nissan factory trained.

Mike V. is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor.

Lynn B.Ormond Beach, FL

I was skeptical at first but thought I'd give it a try. I was pleasantly surprised. Your site actually is a quality service that I would recommend to others in a heartbeat.

StanSayre, PA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Chris

Chris

Shop Foreman

3,449 satisfied customers

Jeep Certified Master Tech

Mark

Mark

22 Year Factory trained technician

2,593 satisfied customers

Jeep factory training........25 years in the industry.

Dave

Dave

Jeep Master Tech

1,149 satisfied customers

Chrysler Triple Master, ASE master Tech AA degree in Auto.

moparfl

moparfl

ASE Certified Technician

1,130 satisfied customers

ASE Master Tech Chrysler Dodge Jeep Master Tech

Tim Mohr

Tim Mohr

ASE MASTER TECH

1,021 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Ron Z.

Ron Z.

- Jeep Tech -

629 satisfied customers

18+yrs experience. State Inspector & Jeep Diagnostics/Repair

jeepmopar76

jeepmopar76

Jeep/Chrysler Triple Master Tech

579 satisfied customers

32yr ASE Master Tech, 9yr Chrysler Master Tech, 19 yr Jeep Dealership service including AMC/Eagle

< Previous | Next >

Related Jeep Questions
How can I turn off the air bag chime on my jeep jk? Just
How can I turn off the air bag chime on my jeep jk? … read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
I need key code for my 2000 jeep grand cherokee
i need key code for my 2000 jeep grand cherokee JA: Okay, I'll connect you to the mechanic to go over that information regarding your Jeep Grand Cherokee. Before I do, is there anything else you want … read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
The other day my 2014 jeep Cherokee trailhawk had a fault of
the other day my 2014 jeep Cherokee trailhawk had a fault of service 4wd system pop up, what should I do … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have too keep adding engine coolant to my 2011. Grand
grand Cherokee in temp gauge went pass half way Car has 80000 … read more
Mike V.
Mike V.
Auto Service Technician
26,267 satisfied customers
Just put in freeze plugs. put everthing back together and
just put in freeze plugs. put everthing back together and now when it starts motor runs wide open and i have to turn quickly … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Did an update to hopely fix my navagation problem, but it
did an update to hopely fix my navagation problem , but it was no help ? … read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
No power to fuel pump. New map, iac valve, crank sensors and
new map, iac valve, crank sensors and nee fuel pump. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,240 satisfied customers
Car will not change gear up or down 1gear and reverse work
car will not change gear up or down 1gear and reverse work ok … read more
Nate
Nate
Automotive Technician
Automotive Trade School Degree
84 satisfied customers
I have a 1992 Jeep Cherokee Laredo and I just filled the
I have a 1992 Jeep Cherokee Laredo and I just filled the fuel tank. When I went to start it it wouldn't turn over. When it did it drove fine. When I got home and turned it off I tryed starting it agai… read more
Todd M
Todd M
Owner
ASE Certification
1,492 satisfied customers
I cant find out how to fuel up. All good but need to fuel up
I cant find out how to fuel up JA: Has the vehicle turned into a gas hog? And how does it start -- same as usual? Customer: all good but need to fuel up and it wont open JA: What is the model/year of … read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
I've got a 96 Jeep Cherokee 4.0. I removed the catalytic
I've got a 96 Jeep Cherokee 4.0. I removed the catalytic converter & O2 sensor a year ago. Then one day, iot wouldn't start. Getting codes PO130 and 136--which points to O2 sensor in banks 1 & 2. . Ha… read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
My 2004 liberty and 2004 grand Cherokee have engine codes
my 2004 liberty and 2004 grand Cherokee have engine codes 302 on the 3.7 and code 305 on the 4.7 I have replaced plugs coils and computers on both. the engine light went off for a couple weeks but has… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
I had to remove dash to change heater box. I got that all
Hi, I had to remove dash to change heater box. I got that all fixed and put all back together. Now my traction control light is on with the esp light. If the steering column was removed and the possib… read more
Gunvir Singh
Gunvir Singh
1,817 satisfied customers
Stalls ,sputters,wont go pass 45 going upa steep grade ;will
stalls ,sputters,wont go pass 45 going upa steep grade ;will suddenly stop wile at a light … read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
Jeep liberty 2006 started making clunking sounds for a few
Hi, jeep liberty 2006 started making clunking sounds for a few days, now won't go forward in drive but will go back in reverse. … read more
rpmdiag
rpmdiag
High school
7,286 satisfied customers
I have a 2002 jeep wrangler, have been back and forth with a
hello JA: Hello. How can I help? Customer: i have a 2002 jeep wrangler JA: Are you fixing your Wrangler yourself? What have you tried so far? Customer: have been back and forth with a mechanic JA: Any… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Fuel gauge and ampmeter are bouncing while my 03 rubicon is
fuel gauge and ampmeter are bouncing while my 03 rubicon is off … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
P1762 code. Governor pressure offset. 1998 grand cherokee
p1762 code JA: Just to clarify, what's the exact code? And have you tried to reset it? Customer: governor pressure offset JA: What is the model/year of your Jeep? Customer: 1998 grand cherokee laredo … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x