Freightliner Cascadia Samchassis module failure problems with truck lights and system

Опубликовано: 24 Февраль 2026
на канале: Francisco Amaya
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WARNING!!: ⚠️⚠️⚠️
Always use the proper tools and safety equipment to perform this job.
Failure to perform the job correctly can result in personal injury or vehicle damage.
Don't do this job if you think you don't have the experience or the equipment to do this job correctly. REMEMBER SAFETY FIRST!

Warning!!! ⚠️⚠️⚠️
This video is just a demonstration of the labor to do to perform this job, the results may vary.
Also, the damage found can be greater that expected and it can result in a massive engine failure.

This video contains advance technician information.

keyworks
freightliner kenworth peterbilt international volvo mack western star cascadia coronado t660 t680 t700 579 389 379 589 vnl vn
cummins isx cummins isx15 cummins n14 cummins m11 cummins isb cummins isb DD15 DD13 DD16 Series 60 caterpillar C15 3406 C13 OM 460 OM471 OM472 OM473 mercedes benz atros DD13 DD15 DD16 60 series class 8 truck tractor


Topics discussed:
what is the samcahssis module
how the samchassis goes bad
problems with truck lights
what to do to repair this problem
what is the reason why the module goes bad





symptoms of the fault are:
tractor light no working
relay and actuator noises
smoke from module



Shop talk:
FOR FREIGHTLINER CASCADIAS WITH P3 BODY TYPE. THE SAMCHASSIS IS THE MODULE THAT CONTROLS THE REAR TRACTOR AND TRAILER LIGHTS. IF THE MODULE GOES BAD ALL THE REAR LIGHT ARE NOT GOING TO WORK AS COMMANDED. THE MODULE MUST BE REPLACED TO SOLVE THIS PROBLEM.



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