Medium and Heavy Trucks

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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
Andy
Andy
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Vocational, Technical or Trade School
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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
shop foreman
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2012 Kenworth, no high beams on right and no low beam on
2012 Kenworth, no high beams on right and no low beam on left. Fuses for chassis node are good, bulbs are good. Looking for wiring diagram from lights to chassis node … read more
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I have 2012 T800 vin 953392 with no power to the acc
second opinion] Hi I have 2012 T800 vin 953392 with no power to the acc circuits in the fuse box (g3,g4,g5 and one in g6) all color codes green so there is no power to cb,hvac,radio or wipers although… read more
Daniel Wilson
Daniel Wilson
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I have a 2016 Freightliner Cascadia: All of the Trailer
I have a 2016 Freightliner Cascadia: All of the Trailer lights quit working, there is op power coming to any of the light cord plug pins on the back of the cab. The relay box on the fire wall lost the… read more
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I have no high beam lights on a 2003 heavy duty truck. I
I have no high beam lights on a 2003 heavy duty truck. … read more
Don
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2016 Pete 389. VIN 408666. Both Lo beam headlights went out
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I can't locate the fuse for the 12V outlets on Kenworth
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Daniel Wilson
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Having troubles with a 2012 Kenworth. No hood signals. Rear
Having troubles with a 2012 Kenworth. No hood signals. Rear signals work. Finding that they run through the CECU and the Chassis Node. Wondering if its possible to get a wiring diagram for the signal … read more
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Western star no headlights, Western star4964ex, No power
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Turn headlights on, RH low beam works-no left, turn high
turn headlights on, RH low beam works-no left, turn high beams on then the LH light works & RH does not work,changed both bulbs still not correct, tried jumping, can get both low beams to work on 1 wi… read more
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High beams only on a 2000 Pete. Checked breakers, turn
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A 2014 w 900 day cab and i am having trouble with the head
a 2014 w 900 day cab and i am having trouble with the head lights on the left side both low beam and high beam are not working , i changed the on off switch and a new dimmer switch. … read more
Mark Patrick
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2005 m2 business class box truck. has cab lights has
2005 m2 business class box truck. has cab lights has headlights has oem tail lights. no hood lights/left turn signal and box lights.… read more
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I just finished rewiring my headlights and fender turn
Hi, I just finished rewiring my headlights and fender turn signals, I was careful to replace the wiring in the same way it was previously wired, but now I'm having an issue with the high beam indicato… read more
][\][iCk0411
][\][iCk0411
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Vocational, Technical or Trade School
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2005 W900 headlights 't work. Have power to 3 wire plugs on
2005 W900 headlights don't work. Have power to 3 wire plugs on frame on each side. also have power on the ground wire. Tried aux. ground to frame to ground wire ,just get small spark but no lights. Di… read more
Bradley Martin
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2014 kenworth t800 No low or gh beams,no flashers or turn
Good morning, 2014 kenworth t800 No low or high beams,no flashers or turn lights Low power to both head light harnesses, Replaced both high and low beam head light Fuses seam to be ok Left low beam we… read more
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Have a 2012 freightliner cascadia with DD 15 engine. Truck
Have a 2012 freightliner cascadia with DD 15 engine. Truck will crank but won't start. Hooked up diagnostic computer and there are no codes--in fact it is not detecting engine computer at all. Not det… read more
FIX-IT
FIX-IT
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