Eeprom help

[Jeepguy19]

Hello everyone,

I'm new to this stuff and here is my issue I have a 2011 jag that I had to replace the tmps for the vehicle and the eeprom has the vin number on it. The chip is a high speed can bus tja1040 and I'm using the ch341a reader. Any help to tell me the right program to do the reading and writing of the chip would be great.

Thank you.

 

[Harald Kapp]

The tja1040 is a high speed can transceiver, not an EEPROM. There's nothing to read from or writr to it.
The CH341 programmer is suitable for 24Cxx serial EEproms only (if it's one of this kind).

 

[Delta Prime]

To compliment the answer given above. TheTJA1040 transceiver converts the digital signals from the Control Area Network(CAN) controller into the differential signals used on the CAN bus. It also converts the differential signals back into digital signals for the controller
This System Node cannot be programmed.

 

[Jeepguy19]

So then they wouldn't keep the vin stored in that chip.

 

[Delta Prime]

I have a 2011 jag that I had to replace the tmps for the vehicle and the eeprom has the vin number on it

 

[Harald Kapp]

So then they wouldn't keep the vin stored in that chip.

They can't

 

[davenn]

They can't

why not? it's just a set of characters - numbers and letters

 

[Harald Kapp]

why not?

Because the tja4010 is a CAN transceiver, not an EEPROM. Nor does it look to be programmable (at least not permanently) in any way: