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Vida CEM swapping

A mid-size luxury crossover SUV, the Volvo XC90 made its debut in 2002 at the Detroit Motor Show. Recognized for its safety, practicality, and comfort, the XC90 is a popular vehicle around the world. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America). P2 platform.
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RickHaleParker
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Re: Vida CEM swapping

Post by RickHaleParker »

T5Luke wrote: ↑21 Jul 2022, 16:24 I can also post bootloader to dump cem, maybe it has use for teensy project...
Could dump to the terminal . Copy and paste to a binary file. Process could be reversed for flashing.
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T5Luke
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Post by T5Luke »

Here this is minimum connection to CEM on bench.

On D connector:
Green: HS CAN-L to pin 14 OBD
White: HS CAN-H to pin 6 OBD

Grey (pin 6 ): GND
Yellow (pin 8 ): +12V
Blue (pin 15 ): +12V

Also it needs +12V on the both big connectors (big green power socket)
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bosse
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Post by bosse »

Pin 8 and 15 is not needed.
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T5Luke
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Post by T5Luke »

If you don't want to fall the cem asleep and run it in a diagnostic session you need power on pin 8 and 15.
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oscilloscope
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Post by oscilloscope »

folks , I want to buy a teensy , i found afew suppliers , is it the 4.1 dev board or the teency LC dev board with bootloader? im gonna take the plunge and bloody well get one. buuut which is best for this application ?
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vtl
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Post by vtl »

Teensy 4.0.
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oscilloscope
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Post by oscilloscope »

vtl wrote: ↑01 Aug 2022, 14:19Teensy 4.0.
ugh the only one not in stock my luck
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vtl
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Post by vtl »

oscilloscope wrote: ↑01 Aug 2022, 14:21
vtl wrote: ↑01 Aug 2022, 14:19Teensy 4.0.
ugh the only one not in stock my luck
4.1 may work as well, it is based on the same chip.
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oscilloscope
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Post by oscilloscope »

vtl wrote: ↑01 Aug 2022, 14:26
oscilloscope wrote: ↑01 Aug 2022, 14:21
vtl wrote: ↑01 Aug 2022, 14:19Teensy 4.0.
ugh the only one not in stock my luck
4.1 may work as well, it is based on the same chip.
ah i'll just get the 4.1 if it doesn't work at least i have a thing to aid me in the journey into programming something. or i could nail it to the wall
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T5Luke
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Post by T5Luke »

I have both and on both of them the same code works. So have fun with it...
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