I have fixed the error on x279.
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K_CAN is used by the car computer to manage the memory so you have to connect it if your seat has this option.
http://en.wikipedia.org/wiki/Controller_area_network
Quote:
Controller–area network (CAN or CAN-bus) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer.
CAN is a message based protocol, designed specifically for automotive applications but now also used in other areas such as industrial automation and medical equipment.
Applications
[edit]Automotive
A modern automobile may have as many as 70 electronic control units (ECU) for various subsystems.[3] Typically the biggest processor is the engine control unit (also engine control module/ECM in automobiles); others are used for transmission, airbags, antilock braking, cruise control, audio systems, windows, doors, mirror adjustment, etc. Some of these form independent subsystems, but communications among others are essential. A subsystem may need to control actuators or receive feedback from sensors. The CAN standard was devised to fill this need.
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So it need to be connected if you want to activate the memory function by programming.
My question is about the SHBF_PWN for the heating. I think that if your seat are powered with memory (K_CAN), you don't need it anymore. (It become a legacy)
But, as the heating seat retrofit is plugging this wire, I will not take any chance and I will do the same thing.
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I have got my seat but I want to dye them before. I also want to be sure about what should I do. I gave all the information I found and your search is validating my assumption.
I still have 2 questions:
-Can we reused the power from pin #4 on pin #9? (I think the risk is if the seat is pulling more than 30A, the fuse will jump. Do you think like me that pin #4 is the power for the heating + adjustments motors? If yes, I would be surprised that we cannot add the side bolster + lumbar. Normally there are not working all at the same time.)
-There is a risk that x14271 pin#10 and #46 are already used by other options. If it's the case, I don't have a miniature connector so I plan to weld the wiring. Is it correct?