Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chevy

My headlights low and high beam are not working on my 2004…

Customer Question
My headlights low and...

My headlights low and high beam are not working on my 2004 Chevy Impala

Mechanic's Assistant: Have you checked the fuses? Have you checked the bulbs?

I checked bulbs I attempted to check fuses I'm not sure if I checked the correct ones though

Mechanic's Assistant: Are you fixing your Impala yourself? What have you tried so far?

Yes I am,I have checked the relay it is clicking when I pull back the switch for high beams but no high beams are coming on but signals and all other lights work

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Also when I pull back the lever for my high beams to come on they don't and the high beam icon on my dash board doesn't even come on also

Submitted: 6 months ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 6 minutes by:
8/1/2017
Chevy Mechanic: Pete, Auto Service Technician replied 6 months ago
Pete
Pete, Auto Service Technician
Category: Chevy
Satisfied Customers: 31,008
Experience: 14 years GM dealer Technician.
Verified

Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.

This can be due to an internal electrical fault with the BCM ( body control module).This control unit controls the light ground signals to power them on as well as the signal for the instrument cluster for high beam.The head light switch feeds its signals into the BCM and then the BCM feeds signals out to the dimmer switch to control the light signals.In some cases it is the multi function switch that causes this if it has an internal short.It can still work to operate the turn signals but can fail to allow the signals to pass through to allow head light operation.

To determine which is at fault here the signals have to be tested with a multi meter to see for sure which is the cause needing replaced.If you have this tool to do this testing and want to test it let me know.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

Ask Your Own Chevy Question
Ask Pete Your Own Question
Pete
Pete
Pete, Auto Service Technician
Category: Chevy
Satisfied Customers: 31,008
31,008 Satisfied Customers
Experience: 14 years GM dealer Technician.

Pete 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:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

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

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

15,289 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,357 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,866 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,918 satisfied customers

Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,734 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
Cant seem to get the wiring harness for the turn signal
cant seem to get the wiring harness for the turn signal switch thru the column. ive done these before, but never on a tilt wheel … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
The turn signals and radio on my son's 07 Tahoe quick
The turn signals and radio on my son's 07 Tahoe quick working. Is it possible that they are both on the same fuse? … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
Tracing the turn signal wire(purple) 84 corvette. Does the
tracing the turn signal wire(purple) 84 corvette. Does the wire go into the bulkhead connector. … read more
Joecamel90
Joecamel90
Technician
Associate Degree
24 satisfied customers
Both front and back turn signals not working. Cannot locate
Cannot locate fuse for this in owners manual is it listed different than turn signal … read more
Todd M
Todd M
Owner
ASE Certification
1,555 satisfied customers
I have a 2015 2500, the left front turn signal is not
I have a 2015 2500, the left front turn signal is not blinking … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
No crank/start, intermittently working turn signals ( which
No crank/start, intermittently working turn signals ( which is replaced with a loud buzz when it cuts out) . Replaced the starter. Worked great for half a day, then it was business as usual....no star… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Removed and reinstalled turn signal relay on my 1999 chevy
Removed and reinstalled turn signal relay on my 1999 chevy blazer. Now will not start, had been starting normally. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,631 satisfied customers
I have a 2013 Trax and the radio and turn signals do no emit
I have a 2013 Trax and the radio and turn signals do no emit any sound … read more
Pete
Pete
Auto Service Technician
31,008 satisfied customers
Radio turns on and off when I use my turn signal. 2002
radio turns on and off when I use my turn signal. 2002 suburban 1500 4X4. seems to have started when my auto door locks failed. … read more
Todd Audette
Todd Audette
Automotive Technician
Vocational, Technical or Trade School
229 satisfied customers
Left turn signal stopped working. right side fine. front 2
left turn signal stopped working. right side fine. front 2 lamps illuminate but not side marker or rear light. Just get the rapid flasher tone. HELP! Already checked all fuses of interior fuse box and… read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
Turn signals quit working, emergency flashers work. 94 Chevy
Turn signals quit working, emergency flashers work … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
None of the front or back turn signals work. Headlights and
None of the front or back turn signals work. Headlights and brakes do though … read more
Mechanic01
Mechanic01
1,976 satisfied customers
Dim headlights. Turn signals are dim. Horn won't work with
Dim headlights. Turn signals are dim. Horn won't work with lights on. Both turn signals flash when one is turned on … read more
Mechanic01
Mechanic01
1,976 satisfied customers
I have a 2002 3500 chevy van and the front turn signals both
I have a 2002 3500 chevy van and the front turn signals both flash when I have the headlights on when i use my turn signals … read more
Pete
Pete
Auto Service Technician
31,008 satisfied customers
Turn on headlights and tail lights and turn signals and
turn on headlights and tail lights and turn signals and brake lights don't work … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
Left rear turn signal and running light not working and
left rear turn signal and running light not working and cruise control stops when right turn signal engaged. … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
Left turn signals does'nt work and right turn signal stays
left turn signals does'nt work and right turn signal stays on-2008 chevy hhr … read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
Both front turn signals are not working but the rear is,
both front turn signals are not working but the rear is … read more
Todd M
Todd M
Owner
ASE Certification
1,555 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