Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Don, There is a red wire running from the cab to the back of
Don, There is a red wire running from the cab to the back of the truck for brake lights only. We also have a yellow and green for the turn signals in the factory harness. Right now we have 4 tail ligh… read more
Don
Don
fleet superintendent
Vocational, Technical or Trade Scho
1,630 satisfied customers
2012 Freightliner Cascadia 125. Throwing code: Diag 1, CHS
2012 Freightliner Cascadia 125. Throwing code: Diag 1, CHS 71, SPN 520602, Fail 4 … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have a 07 freightlinerclassic xl, im having issues with
Hi Steve I have a 07 freightlinerclassic xl, im having issues with the wiring that supplies the trailer power, my issues are as followed when right turn signal is on the left center light flashes to, … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 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
shop foreman
Associate Degree
5,128 satisfied customers
I have a freightliner M2with a 4/2005 manufacture date.
Hello. I have a freightliner M2(###) ###-####with a 4/2005 manufacture date.Driver side tail / brake / turn (3) wire socket went bad. Bought a new light assembly which came loaded with new bulbs. One … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I'm trying to find where the option 1 & 2 dash switches are
I'm trying to find where the option 1 & 2 dash switches are pigtailed out on my 2018 Freightliner. The dealership said they were on the frame, but I don't want to tear up the wire loom to find them. W… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have a hydraulic parking brake with the yellow dash knob.
I have a hydraulic parking brake with the yellow dash knob. In a freightliner step van. We just put in a transmission in the unit and the parking brake will not set. Unfortunately it was towed in and … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Trying to wire a marker int switch on freightliner m2, 2006
trying to wire a marker int switch on freightliner m2 … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
97 freightliner fld 120. Right blinker works but when brake
right blinker works but when brake is applied the signal freezes. same thing happens when flashers are on. located brake relay on firewall and unplugged but had no effect on situation. … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have a 2005 freight liner m2 with a Mercedes engine, my
Hello i have a 2005 freight liner m2 with a Mercedes engine, my brake lights don't work, i would like a wiring diagram for the rear brake lights please… read more
Roy
Roy
shop foreman
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5,128 satisfied customers
I have a 2006 freightliner, single axle, it is a Columbia
I have a 2006 freightliner, single axle, it is a Columbia model, I wish to wire a brake controller for a trailer, the truck has a trailer socket at the back of the truck, the trailer plug needs to be … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
Im looking for advice please on how to wire a towbar onto my
Hi, Im looking for advice please on how to wire a towbar onto my transit tipper 2000 plate. Many Thanks, John. … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
We are installing a brake control in a 2010 ford f-650 with
We are installing a brake control in a 2010 ford f-650 with hydraulic brakes. Where do we find the wire to control the brake controller … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
No trailer brake lights. No power to pigtail, 389 peterbilt
All the way up to the chassi control module. And checked all fuses … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I am ***** *****. I ask a couple question about a freightliner
Hi I am ***** *****. I ask a couple question about a freightliner witha 8.3 cummins. Well I bought it and it will be pulling a PJ 2400 lb. trialer in m hot shot business … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
Have a n 02 IH 4300 with no tail or marker lights. Fuses all
Hi Andy, have a n 02 IH 4300 with no tail or marker lights. Fuses all good, relay for tail lamps in underhood fuse box is working, have power on the brown wire only on the brown plug for the body cont… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
202 satisfied customers
2007 Freightliner M2 VIN X35645. Ref; Rr brake lights inop.
2007 Freightliner M2 VIN X35645. Ref; Rr brake lights inop. All other lights work, turn, 4 ways, park. Replaced the AMU "A" stop light switch but have no power to AMU electrical plug, now suspect the … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I am hooking up a 7--way trailer plug to my 7-way socket on
I am hooking up a 7--way trailer plug to my 7-way socket on the coach. I have tail, and turn , but no brake lights. However with a tester, I get signal on the red wire upon brake actvation, So I plan … read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
627 satisfied customers
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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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