Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

2016 Pete 389. VIN 408666. Both Lo beam headlights went out…

2016 Pete 389. VIN 408666...
2016 Pete 389. VIN 408666. Both Lo beam headlights went out at same time. Driver Info Screen shows code for low beam headlight malfunction. Hooked up laptop, code is for no/low voltage to low beams or open circuit. The problem is there are no fuses in either of fuse panels marked for headlights. Looked for a control module and cant find one. Called my local Pete dealer and he said he thought fuses were in kick panel box or out on firewall. He doesn't know where the module might be. I looked in operators manual and there isn't any listing for fuses, fuse boxes, PDM or control module. Can any one help me with location of the fuse, location of module and possibly with a wire diagram.
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 43 minutes by:
3/5/2018
Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3,879
Experience: ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician
Verified

My name is ***** ***** I will assist you with your question today.

I'm an independent contractor and I don't get paid until a rating has been made.

We can go back and forth as needed to help resolve the issue you are having. Follow-ups are free after ratings, so rate with confidence!

The headlights are module controlled. There is a fuse panel in the golve box area. You have to remove the whole glove box then remove the cover to the fuse box to access.

The module is behind the dash center area and to the right. It is the hassis node. It sends the light signal out.

If you have the fault with both lights, check the ground. Unplug both lights and cycle the key 8 times or rest the code with the laptop. Then check the pins for the power and ground at the plugs. If you are good on all, then plug one light at a time and see if the bulb is taking the system down.

_______________________________________________________________________________

You want a 5-star service and I want to provide a 10 star service. Please consider that I don't know your skill level as well as I can't see, touch, smell, hear the vehicle/machine in question. Please provide as much detail as possible and I will provide as much I can back to you.

Once an answer is provided, you should see a rating screen. Please rate my personal service to you. The ratings are my personal feedback, they are not the site feedback.

Please note: The site does the phone call requests, not I. I do not generate the request. Same as the memberships. The only thing I ask for is a positive 5-star rating, when we are finished, for my personal service to you.

Thank you for allowing me to assist you through Just Answer!

Jeremy

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 5 months ago
Thanks for the info. The 385 model fuse box is behind glove box, but not this 389. Only 2 fuse boxes we can find is in left kick panel and left firewall. Any thoughts about where else the fuse may be. We do see the chassis node behind center console, we will ck the wires and connections there, clear code and hook up lights 1 at a time and see what happens. Would like to verify voltage from fuse to node if you can help with it location.
Customer reply replied 5 months ago
update: with hood connectors disconnected, clear code with laptop. as soon as you turn headlight switch on, low beam light code comes back. My problem is in chassis wiring or node. Would like to find correct fuse for low beams

Misread. Thought I read 385.

Those 389s have issues with the ground wire near the motor mount for the lights. The ground wire will get hot and kick off the module. See if there is issues with that ground wire.

The fuse panel that would have the lights fuse is under the hood on them. I'm presuming you found that one already.

Also, since you had the low beams come back, the fuse is good. The node is shutting down the circuit. it only shuts it down due to high resistance being seen by the node. That was why I mentioned unplugging the lights to cut the resistance and have the node power the lights back on.

Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3,879
Experience: ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician
Verified
Jeremy and 87 other Medium and Heavy Trucks Specialists are ready to help you
Ask your own question now
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Jeremy Your Own Question
Jeremy
Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3,879
3,879 Satisfied Customers
Experience: ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

Jeremy 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:

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

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

3,879 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

Related Medium and Heavy Trucks Questions
No low beam on international 4300. No power to the head
No low beam on international 4300. No power to the head light lamps. I can't find the a relay or a fuse under the hood or behind passenger side. Where I find the fuse and what other problem could it b… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
I can't find the fuse box for the trailer on the 2019 fl
I can't find the fuse box for the trailer on the 2019 fl cascadia. Fuse is blown. I know where the main fuse box is on the passenger side and power box on the same side under the hood. Where is it? … read more
roy
roy
Associate Degree
3 satisfied customers
2016 frieghtliner Coronado and was wondering where if any is
2016 frieghtliner Coronado and was wondering where if any is the fuse for trailer brake lights I have them on tractor but no sign of power running to the cord behind cab … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
2014 389 peterbilt 389 right front turn signal dont work
2014 389 peterbilt 389 right front turn signal dont work along with the left rear turn signal and brake light all markers work… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a 2012 Freightliner Cascadia in my shop with several
I have a 2012 Freightliner Cascadia in my shop with several def system faults 3232 2771 3712 3258 3425 3261 3714 2398 I have Cummins Insite software on my laptop where do I need to start looking to re… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
High beams only on a 2000 Pete. Checked breakers, turn
High beams only on a 2000 Pete. Checked breakers, turn signal switch, headlamps the, light switch … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I need help with mi freightliner, My blower is not working,
Hi i need help with mi freightliner JA: We'll do all we can to help. Tell me a bit more about what's going on so the Heavy Equipment Mechanic can help you best. Customer: My bunk blower is not working… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a Freightliner Columbia 2006. The sleeper blower
I have a Freightliner Columbia 2006. The sleeper blower doesnt not blow. I have replaced the blower the heat, A/C vent motor, the thermostat and the speed switch on the panel. I have pretty much gutte… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
3,879 satisfied customers
2003 freightliner Columbia yesterday cab and sleeper blower
2003 freightliner Columbia yesterday cab and sleeper blower motors working fine also high beam lights working , this morning blower motors not working and no high beam lights … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I got cascadia 2012 with cummins Got a problem with it
Hello I got cascadia 2012 with cummins Got a problem with it yesterday Washed the truck and after that ignition won't turn on and all flasher come on and headlights are on I think it's a safety featur… read more
roy
roy
Associate Degree
3 satisfied customers
HelloWell yet another irritating issue with my Freightliner
Hello Well yet another irritating issue with my Freightliner Columbia Suddenly the drivers side low beam bulb will not work. Pass side works, in high beam both sides work. My guys are having to drive … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
3,879 satisfied customers
My freightliner M2 has a turn signal on the right but no turn signal o
My freightliner M2 has a turn signal on the right but no turn signal on the left sine front or back? what do you need… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
2007 pete 379 when put on high beam both right headlights
2007 pete 379 when put on high beam both right headlights go out after a few minutes. if left on high all headlights go out after a few more minutes. flip switch to low and low beams come on.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I'm Hector the lights on my trailer are good and inside
Hi I'm Hector the lights on my trailer are good and inside truck all lights are working fine also but head lights and emergency lights aren't turning on what could be my problem?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a 2007 Freightliner Century Class and the high beams
I have a 2007 Freightliner Century Class and the high beams won't come on, windshield wipers don't work, and cab and sleeper blower motor aren't running.… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
Hi, Buddy, Hopefully you or one of the other mechanics can
Hi, Buddy, Hopefully you or one of the other mechanics can help me with the electrical problem in my 2007 Freightliner SportChassis. All has been well recently, and I have had the brake recall done, a… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
a 06 ihc 6h187839 4300 has working high beams but the low
a 06 ihc 6h187839 4300 has working high beams but the low beams do not work there is no power going to them the bulbs are good how do you check to see if the high low selector is working or not or cou… read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
2011 Freightliner Cascadia looking for the abs ecu and fuse
2011 Freightliner Cascadia looking for the abs ecu and fuse location for power have low power on the Diaganol 1… read more
DirectInjection
DirectInjection
Field Service
Diplom
56 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