Medium and Heavy Trucks

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My opt switch on my 2020 freightliner coronado I put my
My opt switch on my 2020 freightliner coronado I put my grill amber strobes to it and it will only work if the headlights are off … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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2007 freightliner, low beams dont work, beams do. Also no
2007 freightliner, low beams dont work, hi beams do. Also no power to marker light pins for trailer … read more
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Keiphun Sowell
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The marker lights decided to not work when the headlights
The marker lights decided to not work when the headlights turned on, however, the trailer markers are on with the exception of taillights. When the switch is turned on for the parking lights all the m… read more
Daniel Wilson
Daniel Wilson
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2008 freightliner coronado, abs system not working...
2008 freightliner coronado, abs system not working... … read more
Daniel Wilson
Daniel Wilson
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2006 freightliner Coronado, Detriot engine. Sitting idling
2006 freightliner Coronado, Detriot engine. Sitting idling with park lamps on and dash lights of couse. Once I turn headlamps on the dash lights goes completely dark. Also the trailer lights on the ta… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
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I gave a coronado that the left window doesnt work.
I gave a coronado that the left window doesnt work . Wondering if i could het a wirinf duagram for that. Also the higj beam indicator turns in and off wth tge turb signal indicator … read more
Roy Belding
Roy Belding
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I have a 2012 freightliner Coronado that the turn signals
I have a 2012 freightliner Coronado that the turn signals will not work when the headlights are on before I got it they had put a new pigtail for left headlight new light switch new turn signal switch… read more
FIX-IT
FIX-IT
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95 Freightliner fld120 headlight problem low beam works good
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Roy Belding
Roy Belding
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2000 Freightliner fl-70. Clearance lights go off when head
2000 Freightliner fl-70. Clearance lights go off when head lights are turned on. Can I get some help figuring this out?… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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Western star no headlights, Western star4964ex, No power
No power from headlight switch to relay on fuse panel … read more
Roy Belding
Roy Belding
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99 fld 120 headlight wiring problem. On low beam the left
99 fld 120 headlight wiring problem. On low beam the left headlight dims every 10 seconds or soand I can hear the breaker clicking off and on. When this happens, the left turn signal indicator light o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I need a headlight wiring diagram for a 1998 FLD120
I need a headlight wiring diagram for a 1998 FLD120 Freightliner with an N14 Cummings in it. VIN#1FUYDDYB0WL959791. Can you help me find? I am trying to find where the low-beam relay has constant powe… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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I have a 2013 Freightliner Coronado, the passenger high beam
I have a 2013 Freightliner Coronado, the passenger high beam will not work. I have the truck on and the only high beam that works is the driver side, all lights work by the way except the passenger hi… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a straight truck freightliner business class m2,
hi! I have a straight truck freightliner business class m2, 2006, mercedess engine, left signal in front not working, high beam right not wor*****, *****ers not working both sides, headlights are work… read more
Toby
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Vin # XXXXX ..2003 freightliner columbia ...light switch
Vin # XXXXX ..2003 freightliner columbia ...light switch in upward position no lights at all , but constant clicking coming from the self setting relay to rt hd lt and the lt self setting relay gettig… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,747 satisfied customers
I have 2012 Freightliner Coronado glider. I have two problems,
I have 2012 Freightliner Coronado glider. I have two problems, 1) when I turn on my lights my blue high beam indecater dash light stays on all the time, but my low & high beams only work on the passen… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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2001 379 Pete when it is hooked to a trailer the tail lights
2001 379 Pete when it is hooked to a trailer the tail lights on truck and trailer went out and the headlights went to high beams and there was now way to shut high beams off.… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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2011 freightliner Coronado, with the marker light switch on,
2011 freightliner Coronado, with the marker light switch on, I have normal lighting but when I turn the headlights on, all the clearance lights on the tractor and all the lower lights and tail lights … read more
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Jeremy
Certified Truck/Bus Technician
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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.

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