2019 Toyota Corolla MB91F060BS

**angelo44** · 21st September, 2019, 02:29 PM

Hello DK!

Can somebody help change 28689kms in 17500kms? This looks like a RAV4 Denso.

Also, after change, do I need drive car to show new? Or will show on the bench rightaway?

Thanks in advance!
A

**angelo44** · 21st September, 2019, 08:07 PM

I read with smelecom multiplex. But it doesn't write back correctly... Anyone know if the BCM2 is better to write? After write, it still shows old mileage.

Or maybe can help calculate dump above..

Thanks,
A

**nikz** · 21st September, 2019, 11:17 PM

looks like bad.......................................

**angelo44** · 22nd September, 2019, 08:07 PM

No, its not a bad read, Most likely its not in the FUjitsu. Maybe in the c66 like another poster said? What got me is that the unit is almost identical with the RAV4... same board #, same components... Spansion S29GL128S MCU... etc...

Will try to read the c66...

A

**Geryy** · 23rd September, 2019, 12:59 AM

Show pictures ecu and inside board

**angelo44** · 23rd September, 2019, 01:47 AM

Here they are... very similar to the 18 RAV4...

**jomberykaso** · 23rd September, 2019, 01:56 AM

face_plate.jpg

maybe it's a c66

**clusters** · 23rd September, 2019, 02:41 AM

The data is in eeprom and SPANSION processor, doing the eeprom only will not work.

The Spansion algo is like a Fujitsu, but with a different constant to get the CS.

https://www.digital-kaos.co.uk/forum...-Camry-Mileage

**Geryy** · 23rd September, 2019, 07:05 AM

Originally Posted by clusters

The data is in eeprom and SPANSION processor, doing the eeprom only will not work.

The Spansion algo is like a Fujitsu, but with a different constant to get the CS.

https://www.digital-kaos.co.uk/forum...-Camry-Mileage

This not Camry. This Corolla with Fujitsu. Look at the picture.

**Geryy** · 23rd September, 2019, 07:32 AM

I think mileage in small c66 msop.

**angelo44** · 25th September, 2019, 01:12 AM

Most likely it is stored in the c66.... but I may not find out since the hot air gun decided to give it a lift into the abyss...... So now looking for a new unit.....

To be continued........

**clusters** · 25th September, 2019, 01:33 AM

"I think" "Most likely"

If it has a Spansion processor it controls the display and stores the mileage. But go ahead and experiment.

As I understand it from research, 2019 Corolla is the same setup as the 2018 Camry.

**angelo44** · 25th September, 2019, 03:18 AM

I just confirmed... it is stored in the c66. I tried replacing the lost eeprom and I get diff #s with diff dumps.

Like I said above, this is very similar to a RAV4, not Camry... All parts are identical to 18-19 RAV4.

Now if I can just figure out the algo...............