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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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5ft24
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Re: Vida CEM swapping

Post by 5ft24 »

The key info isn't stored in the CEM.
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ZRimaZ
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Post by ZRimaZ »

5ft24 wrote: ↑29 Sep 2022, 06:57 The key info isn't stored in the CEM.
You are wrong! Keys are stored only in cem. Depending on cem, it can be stored in 24f400 flash (in case of cem-b) or in eeprom for other cems
Have a nice day,

ZRimaZ
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5ft24
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Post by 5ft24 »

I guess I was informed wrong by Volvo. I was told it's stored in the Immobilizer module
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Divxet
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Post by Divxet »

I cloned my cem and then my car key worked without problems so I assumed the information must be in the flash file I copied to the new cem.
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5ft24
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Post by 5ft24 »

Cool. Much easier
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liyezhu

Post by liyezhu »

hello everyone,
I can decrypt the CEM PIN of Volvo P3 within 5 minutes. Only the VIN code is required. Need to pay $20 and contact email [email protected]
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oscilloscope
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Post by oscilloscope »

folks , i'm slowing getting the parts together to make the cem cracker. i have the teesny. but i would like to use dip version of the CAN transceivers. so i can use it on a breadboard. for the first try out before having to figure out how to make a board with it all in one with a OBD connector.

i did see the MCP2561 from microchip which has a voltage range of 1.8 to 5.5v , which falls in the required voltage of the teensy output. ,
does it have to be the sn65hvd230dr ? or is that the best suited for the application. , now i also spotted a this
----> https://carlightbulb.com/products/cjmcu ... QoQAvD_BwE and wondered if that would work well ? they seem to have the resistors routed somewhere on them pre made boards. thanks in advance!
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alevol
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Post by alevol »

MCP2561 works ok if Vio provided
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oscilloscope
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Post by oscilloscope »

alevol wrote: ↑05 Oct 2022, 07:10 MCP2561 works ok if Vio provided
Vio approved? what does that mean?
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5ft24
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Post by 5ft24 »

says provided... not approved
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