Image 1 — Ford BCEM JTAG help
Image 2 — Ford BCEM JTAG help
Image 3 — Ford BCEM JTAG help
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Ford BCEM JTAG help

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I am trying to get to the JTAG of a Ford BECM, It is a C-Max BECM, but they are standard across the Fusion, Focus and other Ford vehicles.

I would like to see if I can get any additional information from JTAG that the CAN Bus is not giving me or get access to to read the firmware on the chip

It uses a mpc5534mvz80 chip, but there are no silk screen information points on the board at all. There is a 51 pin test area though.

What is the best way to start pining out the JTAG and is there a preferred probe.

Thank you,

Rick

u/rb0074 — 2 days ago
▲ 2 r/cmaxhybrid+1 crossposts

Can bus log of energi )

Does anyone have or can get a log of the can bus when the the c-max is starting up and turning off? I am looking for.the messages sent to the BECM communications.

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u/rb0074 — 13 days ago