Subaru Denso 98221VC200 - R7F701686 - after cleaning no communication and reading

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jak1m

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Join Date: Apr 2023

Posts: 2
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#1

Subaru Denso 98221VC200 - R7F701686 - after cleaning no communication and reading

01.04.2025, 19:53

Hello

After cleaning in "AUTO" mode, no communication with the controller. Tested on the car and after BENCH on the table
I tried to connect again using SmartProg - unfortunately I get the message -Connect MCU... failed

Below I am posting the logs from the Console during the first cleaning in "AUTO" mode

Subaru Denso 98221VC200 (by SmartProg) R7F701686
--------------------------------------------------------
Connect MCU... ok
Get device type... RH850 standart
Set Oscillator Frequency... 16MHz
Set Baudrate... ok
Read MCU lock status... !!! LOCKED !!!
Bypassing MCU lock... ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:,,,,,,,,,,,,,,,,, ,,:,,,,,,,,,,,,:
Bypassed.
Read password security status... not secured
Read MCU type... R7F701686
CodeFlashSize = 00080000
DataFlashSize = 00010000
UserBootSize = 00008000
Read ICUS Status On... failed
Read Option Bytes... CFFF279AFFFDFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF FFFFFFFFFFFFFF
Get Protection Byte... ok
Read enabled
Write enabled
Erase enabled
Creating backup "Subaru 98221VC200 R7F701686 OPT 26.03.2025 00.24.42.bin" ok
Read Option Bytes... ok
Creating backup "Subaru 98221VC200 R7F701686 CodeFlash 26.03.2025 00.24.44.bin" ok
Read CodeFlash... ok
Creating backup "Subaru 98221VC200 R7F701686 UserBoot 26.03.2025 00.27.40.bin" ok
Read UserBoot... ok
Creating backup "Subaru 98221VC200 R7F701686 DataFlash 26.03.2025 00.27.52.bin" ok
Read DataFlash... ok
--------------------------------------------------------
Clearing Crash by Dump... ok
--------------------------------------------------------
Erase DataFlash... ok
Write DataFlash... ok

How to bring it back to life now
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CPT

Moderator

Join Date: Jun 2012

Posts: 1972
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#2

01.04.2025, 20:45

Write please diagnostic log for your module before MCU programming job.

diagcar.eu
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CPT

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Join Date: Jun 2012

Posts: 1972
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#3

01.04.2025, 21:16

What about capasitors?
After MCU programming capasitors must back on board like before.
If you not install capasitors or solder some wrong, diagnostic not start.

diagcar.eu
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Subaru Denso 98221VC200 - R7F701686 - after cleaning no communication and reading

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