Know your Cascadia: The SAM Chassis

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So, what is a SAM Chassis? Where is it mounted in a Cascadia and what does it do?
Here we'll be taking a look at the basics of all of this plus going over how to replace it.
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[@SmooothShifter]

The Patreon stuff was too confusing for me to set up, so I just wanted to toss you a couple of clams for the informative video. Thanks!

[@TheDieseler]

Honestly, I didn't even know that I had that set up on the channel or if it was possible 😆 But wow, thank you so much. It's very much appreciated.

[@TheRightBrotha]

I'm in the freightliner shop now for both Sam's my bill is up to $4300. On my 2016 cascadia. 😐 But now I know. You have a new sub my friend.

[@Markk8ththe3rd]

Is there a easier way than having to take it to the dealer? I need a new chassis right now

[@meshmuesh9204]

Have the same bill.

[@TellNoL437]

Do NOT use dielectric grease. Freightliner says that is a huge no-no. They will void the SAM warranty if you do that. It also causes resistance issues.

[@elljay4587]

2014 Cascadia evo. I was wondering how to connect a GPS unit. It needs constant, switched power, and ground. How do you do it without cutting any wires? Is there a connector I can tap into?

[@circusboy90210]

is this also called a pndb?

[@karlpayne9069]

No, that separate, to the left of the SAM Chassis

[@redfunnybunny]

Could a faulty Sam chassis cause issues in the sam cab? When I turn the key on, cab lights, turn signal, hazard lights, blower controls, wipers stop working. Also I get chs 216, ecu 128, and cab 249 codes. Any input would be greatly appreciated

[@samtour8545]

The dealer said you don't need to program it

[@drestahangars3884]

Put new sam chass fix the problem now truck want start. Anybody no whats wrong?

[@ristestankovski]

Did u connect your truck with a computer and run the program he mentioned?

[@withbothfeet8593]

Just found your channel surfing for info on an electrical demon on my Cascadia. Great info on the SAM CAB and Chassis modules. Appreciated it.

[@phillipchambers8487]

That was one of the most Helpful Videos I have ever watched about my 2016 Cascadia! Thanks for making this Video. I am now a New Subscriber

[@biggdre337]

What controls the tail light marker lights? Tail lights does everything but the makers won't turn on.

[@TheDieseler]

The tail lights are powered from the SAM Chassis

[@renatoromero1970]

Hey brother, I have Freightliner, Cascadia. I have to put a new Sam chassis. I had to put a new program or not. Or only change or when I put it on new Sam chassis. I had to put a new program to

[@xxkornmetalxx]

Currently going to replace this. I only have four connectors. Trying to see if there is a 5th one somewhere. Do all modules have 5 or are there some like in my case where there's 4?

[@bundylovess]

Grate video mate big thumbs up 👍

[@SupaSwope]

Where can i get the information you have for pin outs of modules and the grahpics for where everything is at?

[@JoseGarcia-uq6zr]

Is the truck tail lights controlled by Sam Cab or the Sam chassis module?

[@lawsondj1244]

SAM chasis

[@SandeepSingh-43]

Hi are you able to get chassis frame rail hole dimensions

[@samtour8545]

Do i need to program it or can i just install it

[@alexanderpichardo1]

I have a 2010 freightliner cascadia and my voltmeter gauge say I have 12 volts and my battery warning light come on but my check my alternator and is 14.0 volts and my battery too if I turn my engine off 2 check engine light come on and my truck won't start and I was checking online and say my truck have a 2 sam chassis recall I check my and have water marks so I gonna take my truck to the dealership this Friday I hope they fix that Thanks for the video.

[@SmooothShifter]

Check the PNDB.

[@BIGBilly]

Lol that's how my Vin starts

[@Detroittruckdoctor55]

Whers is the engine beak relay located

[@shmirbuchanan8673]

Chs 71 spn 524049 fail 31 2) cab 33 spn 524049 fail 31 3) eng 0 spn 59.6 fail 13 4) eng 0 spn 60.2 fail 13 5) eng 0 spn 60.0 fail 13 6) eng 0 spn 97.3 fail 13 My symptoms that I'm experiencing, truck shuts off and on like crazy. I don't have any lights at all. So I'm thinking something electrical? Can you please help me here. 2012 Freightliner cascadia dd15 engine

[@TheDieseler]

All of these codes point to the MSF (The Hazzard Lights switch) powering down or losing communication with the vehicle. Since the MSF is powered from the SAM cab and the truck is also turning off and on, I'm guessing the problem may lie with the SAM cab.

[@shmirbuchanan8673]

@@TheDieseler those codes doesn't have anything to do with the Sam chasis? I was told that the Sam chasis is the culprit

[@TheDieseler]

The one code being broadcast from the SAM Chassis (CHS 71) is indicating it's lost com with the MSF. The SAM Chassis also does not power the engine. Now, that being said, it's tough to be 100% certain without being there to check things out. Basic things to check are power and ground supplies to the modules and any signs of water intrusion.

[@shmirbuchanan8673]

@@TheDieseler is this an expensive repair?

[@TheDieseler]

Again, without knowing the exact cause of the problem, it's tough to say.

[@Detroittruckdoctor55]

Where is the engine break relay located

[@jeanneberg7788]

Where does the bracket go

[@tulw2728]

I have two error codes in my truck. Cascadia evolution 2014 manual transmission; The one on the dashboard reads: NO DATA BUS COMMUNICATION and only displays the hobbs milage, no gauges works. My AC cab unit doesn't send cold air and my sleeper ac PARK SMART doesn't work either. The other one is on the meritor wabco screen that reads: CAN BUS ERROR J1939 messages Check connections. What are your suggestions? I am in Oklahoma. Thank you.

[@TheDieseler]

It sounds like there is a problem with the 1939 Datalink. It could be something simple like a recently added eLog system problem, a malfunctioning module or a problem with the 1939 wiring. That Datalink is shared throughout the truck. If the only affected modules are the ones you've mentioned, the problem could be inside the cab.

[@tulw2728]

@@TheDieseler Thank you. I will look around the cables. I will keep you posted. Thank you again

[@diezales6480]

Please Spanish video ,,,appreciate it

[@CPRoyalty870]

Good stuff my guy

[@ericmendez5815]

Thanks!

[@TheDieseler]

Thank you!

[@tonyjohnson1232]

Where would one find the gateway control module on a 2019 freightliner

[@robertpope3619]

If you have a login to DTNA connect you can find it that way but if not it's located at the electronic bay which is on the passenger side, inside the cab. It's behind the fuse panel. The central gateway is all the way on the bottom

[@oldmanbeau9071]

Where is your shop located?

[@maximaleffort]

Great video! Thank you. Would be great to hear about trouble shooting symptoms of SAM cab vs chasi vs ECU. I've lost cruise control and have rough acceleration, like when you disconnect the speedometer (Volvo).. max spd of 50mph. I have a Cascadia 2012. Can't get a Diagnostic link to work but J19 still sends all gauge and mileage data to my logging device on my cellphone. 30 min 3 key flip reset does not solve. Thx

[@TheDieseler]

Do your engine brakes still work? The reason I ask is because a faulty clutch switch is not that uncommon. The first step though would be to figure out why a diagnostic tool will not work. That's the best way to remove a lot of the guess work.

[@maximaleffort]

@@TheDieseler No. The engine brake light illuminates when turned on, but does not actually work.

[@maximaleffort]

@@TheDieseler Thank you!

[@TheDieseler]

@@maximaleffort I'm willing to bet the clutch switch is telling the CPC that the clutch is partially depressed. That will keep both the Engine Brakes and Cruise from working.

[@maximaleffort]

@@TheDieseler Thank you sir! I can unplug the direct wire I put in when the clutch switch failed. (Allows me to start without holding the clutch down) Do you think maybe that is why the parking break warning is flashing when I open the door, even though the parking break is set? I believe this is keeping me from doing a parked Regen. Thank you Dieseler!

[@gregrusse4162]

You're the best out there keep up the good work

[@TheDieseler]

I appreciate that!

[@sandybil]

Hi, If changed Sam cap and Sam chassis with used one, how can I do the calibration using Ddd8, and my version can not be connected on line? Thanks

[@TheDieseler]

The parameters and software needed to update them have to be downloaded from the DTNA/Detroit servers through DiagnosticLink.