Honda CR-V 2018 77960-ТLA-A250-M4 SPC56AP54 no diag

**PSAcars** · 24th July, 2020, 12:50 PM

Hello to all.
Now I have Honda CR-V 2018 77960-ТLA-A250-M4 with MCU SPC56AP54 with no way to diag on car. I have read on forums that this is happening when CODE data flash is damaged, I also find some post that CODE data file must be 1024KB not like many programmers read only 768KB. If this is correct can some one share working pair for this ecu ( 1024KB code flash and 64KB data flash ). Or if this is not correct, then to share working pair ( 768KB and 64KB ).
The car is my colleague, so we can learn on it. Any other help will be deeply appreciated.

**arpi** · 24th July, 2020, 05:48 PM

usualy when flash is damaged you'll have no codes but airbag light still on read your module and post it

**PSAcars** · 27th July, 2020, 10:08 AM

Hello to all. Here is what I have inside of SPC56AP54L3. Whit this dumps I dont have diag to SRS on car, when power on bench I have no diag too.

**PSAcars** · 27th July, 2020, 10:59 AM

Hello to all. After write this dump that I have found on other forum the situation is the same, NO DIAG to srs. After install on car and try to diagnose SRS I took off and read ecu spc56 again, no difference between file before and after install on car. Those are the test file from other forum.

**jarek88** · 27th July, 2020, 12:07 PM

Please measure the voltage on CAN pins. Maybe CAN IC is damaged.

**PSAcars** · 27th July, 2020, 04:07 PM

Hello to all. After second try with other pair of dumps like in my firs post ( the size of code flash file 1024KB ) now I have diag to ecu. Can some one clear crash from file, if file have crash at all. Now I have errors like this and I can not delete them.

**PSAcars** · 27th July, 2020, 04:39 PM

Hello to all. Forgot the pics. Or if some one can share good pair of dumps ( 1024KB and 64KB )?

**PSAcars** · 27th July, 2020, 09:22 PM

Hello to all. I have checked all igniters in belt assembly and they are ok. But I have errors for them. What can the problem be?
1. Bad dump ( original is lost )
2. Bad IC that control the belt igniters
3. Please check my dump for crash

**badziewo** · 27th July, 2020, 10:25 PM

This is good tested file.

**PSAcars** · 3rd August, 2020, 09:27 AM

Hello to all. Today tested badziewo file, no airbag faults for igniters, belts after sws sensor calibration light goes off. Only one error in car are.
If some one knows ho to deal with this please write back. Aaa ABS sensorS calibration DOES NOT clear this errors.

**badziewo** · 3rd August, 2020, 09:02 PM

Use HDS and clear dtc codes in specific modules.

**PSAcars** · 3rd August, 2020, 09:07 PM

I will arrange a visit to honda dealer, my launch can not see this systems. I will post back result as soon as I have more info.

**Agyare** · 24th October, 2020, 04:23 PM

Pass please

**moretica22** · 6th June, 2023, 02:32 AM

To see if you can help me, my module is a 77960-TLA-A320-M4, After doing the first read and write my module I have no diagnosis, my problem is similar to yours I think I have hope to solve it now that I saw your forum.

Do you think the problem could be in the 768kb flash code?

I have no diagnosis either in the bank or in the vehicle.

MCU SPC56AP54L3

**Treeoflife** · 6th June, 2023, 03:31 AM

Originally Posted by PSAcars

Hello to all. Today tested badziewo file, no airbag faults for igniters, belts after sws sensor calibration light goes off. Only one error in car are.

Originally Posted by PSAcars

If some one knows ho to deal with this please write back. Aaa ABS sensorS calibration DOES NOT clear this errors.

Do you have DTC in any other module? Also, do you know where the damage was on the vehicle? Possible IDAS situation needing Calibration.