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clauberty
7th November, 2022, 12:36 PM
Problem is regarding Volvo V40 year 2015 P 31406631 Infineon XC2361A 72F airbag unit

i read unit has XC2361A 72F but i read that can be XC2361A 56F mcu, maybe here is the mistake i made?

after i write clear file with CPT programmer no more diag with the unit on the car

problem is that after i write ori file back to ecu same problem

no problem reading writing unit via connections from CPT_VOLVO-V40_jtag_v2.PNG (https://carprotool.com/forum/core/CPT_VOLVO-V40_jtag_v2.PNG) but on car with unit no more diag, and before this was diag with unit

anybody encountered tis problem?

THE MODULE MUST BE IN THE SAME POSITION AS IT IS INSTALLED IN THE CAR ! CONNECTING IN ANOTHER POSITION MAY DAMAGE THE CONTROLLER SOFTWARE !!!
YOU UNDERSTAND?

and i respect the above statement, meaning when i connect unit to power and during read/write unit was placed on the desk has is mounted in the car

fuzz1
7th November, 2022, 04:11 PM
Problem is regarding Volvo V40 year 2015 P 31406631 Infineon XC2361A 72F airbag unit

i read unit has XC2361A 72F but i read that can be XC2361A 56F mcu, maybe here is the mistake i made?

after i write clear file with CPT programmer no more diag with the unit on the car

problem is that after i write ori file back to ecu same problem

no problem reading writing unit via connections from CPT_VOLVO-V40_jtag_v2.PNG (https://carprotool.com/forum/core/CPT_VOLVO-V40_jtag_v2.PNG) but on car with unit no more diag, and before this was diag with unit

anybody encountered tis problem?

THE MODULE MUST BE IN THE SAME POSITION AS IT IS INSTALLED IN THE CAR ! CONNECTING IN ANOTHER POSITION MAY DAMAGE THE CONTROLLER SOFTWARE !!!
YOU UNDERSTAND?

and i respect the above statement, meaning when i connect unit to power and during read/write unit was placed on the desk has is mounted in the car


Why did you not check what is written on the chip itself?

PSAcars
7th November, 2022, 04:44 PM
Hello to all. It is on the other side of board, and board is hold down with 100+ pins.

clauberty
8th November, 2022, 03:04 PM
yes if you open/remove PCB from case the capacitors are glued to the case and soldered on the interior side of the PCB so it will be a mess

PSAcars
8th November, 2022, 05:02 PM
Hello to all. Cut the top plastic, and then weld ( glue ) it back.