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Bamse82
13 Posts |
 Posted - 03/21/2026 : 07:07:44
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Hi guys! Managed to desolder the 93c56 on a broken toyota denso ecu.
I just wan't to practice on this one for a immo off...
I read the eproom, did immo off in toyolex.
But every time I try to program it in XProg it says: "Verifying FLASH... ERROR! FLASH ADRESS 0X000018 Buf_Val: 0x2112 IC_ Val 0x0000 Programming Failed......
Have tried other files I found on the forums with the same eeprom. Same error.
I can reprogram the ori file with no errors...
What am I doing wrong???
This Toyota Yaris is about to buuuurnnn.
EDIT! Unblocked the optinion "Verify after" and it was sucessed. But when I read the eproom once again the ori file is still in there.
Is this a joke? |
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| Reply #1
anniel
2622 Posts |
Posted - 03/21/2026 : 13:27:34
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quote:
Originally posted by Bamse82
Hi guys! Managed to desolder the 93c56 on a broken toyota denso ecu.
I just wan't to practice on this one for a immo off...
I read the eproom, did immo off in toyolex.
But every time I try to program it in XProg it says: "Verifying FLASH... ERROR! FLASH ADRESS 0X000018 Buf_Val: 0x2112 IC_ Val 0x0000 Programming Failed......
Have tried other files I found on the forums with the same eeprom. Same error.
I can reprogram the ori file with no errors...
What am I doing wrong???
This Toyota Yaris is about to buuuurnnn.
EDIT! Unblocked the optinion "Verify after" and it was sucessed. But when I read the eproom once again the ori file is still in there.
Is this a joke?
What is the complete part number? |
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| Reply #2
Bamse82
13 Posts |
Posted - 03/21/2026 : 21:58:20
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| Ra57/93c56 on the eeprom. The ecu is a 27036-1152 [PCB] |
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| Reply #3
anniel
2622 Posts |
Posted - 03/22/2026 : 08:00:18
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quote:
Originally posted by Bamse82
Ra57/93c56 on the eeprom. The ecu is a 27036-1152 [PCB]
Chip is probably damaged. |
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| Reply #4
Bamse82
13 Posts |
Posted - 03/23/2026 : 02:27:55
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| But I could read it 7 times with no problems? Could also program it with ori data |
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| Reply #5
anniel
2622 Posts |
Posted - 03/23/2026 : 07:25:44
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quote:
Originally posted by Bamse82
But I could read it 7 times with no problems? Could also program it with ori data
Can you successfully program other 93C56 chips? |
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| Reply #6
Bamse82
13 Posts |
Posted - 04/07/2026 : 12:54:03
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| Nope. Can't program any 93c56... even ordered blank eeproms but No sir |
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| Reply #7
anniel
2622 Posts |
Posted - 04/08/2026 : 10:11:34
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quote:
Originally posted by Bamse82
Nope. Can't program any 93c56... even ordered blank eeproms but No sir
Bad programmer? |
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| Reply #8
Bamse82
13 Posts |
Posted - 04/08/2026 : 13:15:52
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| Maybe... I use a t48 programmer. But do you think a gq-4x4 will do the job? |
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| Reply #9
anniel
2622 Posts |
Posted - 04/09/2026 : 05:55:06
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quote:
Originally posted by Bamse82
Maybe... I use a t48 programmer. But do you think a gq-4x4 will do the job?
93C56 is compatible with the GQ-4X4 in 8 and 16 bit. |
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| Reply #10
Bamse82
13 Posts |
Posted - 04/09/2026 : 09:22:02
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| Ordered a gq4x4. I will report after test |
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| Reply #11
anniel
2622 Posts |
Posted - 04/10/2026 : 05:29:27
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quote:
Originally posted by Bamse82
Ordered a gq4x4. I will report after test
Yes, please do so. |
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| Reply #12
Bamse82
13 Posts |
Posted - 04/12/2026 : 11:15:58
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Tested with the GQ-4x4 now. Get verify fail on this one too. What am I doing wrong???
Have tested two blank eeproms and two from ecus. Have also tried many different 93c56 versions in the device menu. Tested with different speeds.
And also tested with a solder adapter, clip adapter and a adapter thst reminds of adp-004 which was included from the t48.
Please give me some hope. 3 months on this stupid toyota now and can't get anything to work |
Edited by - Bamse82 on 04/12/2026 13:56:38 |
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| Reply #13
anniel
2622 Posts |
Posted - 04/14/2026 : 07:48:18
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quote:
Originally posted by Bamse82
Tested with the GQ-4x4 now. Get verify fail on this one too. What am I doing wrong???
Have tested two blank eeproms and two from ecus. Have also tried many different 93c56 versions in the device menu. Tested with different speeds.
And also tested with a solder adapter, clip adapter and a adapter thst reminds of adp-004 which was included from the t48.
Please give me some hope. 3 months on this stupid toyota now and can't get anything to work
Please post a picture of your setup. |
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| Reply #14
Bamse82
13 Posts |
Posted - 04/14/2026 : 10:40:34
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| Reply #15
anniel
2622 Posts |
Posted - 04/15/2026 : 08:19:32
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quote:
Originally posted by Bamse82
Did you do a blank check? |
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| Reply #16
Bamse82
13 Posts |
Posted - 04/15/2026 : 10:53:02
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| Yes I did a blank check. |
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| Reply #17
anniel
2622 Posts |
Posted - 04/16/2026 : 13:29:32
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quote:
Originally posted by Bamse82
Yes I did a blank check.
Are you able to erase the chips? |
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| Reply #18
Bamse82
13 Posts |
Posted - 04/16/2026 : 20:47:10
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quote:
Originally posted by anniel
quote:
Originally posted by Bamse82
Yes I did a blank check.
Are you able to erase the chips?
No i'm not. After erase the same data still appears. I thought if the t48 adapters has different pinouts? Because i'm out of ideas now. Seems that other users have sucessfully read/write those eeproms with both programmers. |
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| Reply #19
anniel
2622 Posts |
Posted - 04/17/2026 : 15:12:41
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quote:
Originally posted by Bamse82
quote:
Originally posted by anniel
quote:
Originally posted by Bamse82
Yes I did a blank check.
Are you able to erase the chips?
No i'm not. After erase the same data still appears. I thought if the t48 adapters has different pinouts? Because i'm out of ideas now. Seems that other users have sucessfully read/write those eeproms with both programmers.
Is your adapter a straight through? |
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| Reply #20
Bamse82
13 Posts |
Posted - 04/17/2026 : 23:31:35
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| Reply #21
anniel
2622 Posts |
Posted - 04/18/2026 : 05:11:56
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quote:
Originally posted by Bamse82
Ok. Looks good.
Are you certain your chips are not mask ROM? |
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| Reply #22
Bamse82
13 Posts |
Posted - 04/18/2026 : 14:25:43
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| What do you mean by that? Have tester with the ori rh56 also. Talked to one guy who did emmo off with a identical eeprom with gq4x = sucess |
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| Reply #23
anniel
2622 Posts |
Posted - 04/19/2026 : 06:29:08
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quote:
Originally posted by Bamse82
What do you mean by that? Have tester with the ori rh56 also. Talked to one guy who did emmo off with a identical eeprom with gq4x = sucess
A mask ROM cannot be electronically changed after manufacture. Try a real 93c56 from a reputable source. |
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| Reply #24
Bamse82
13 Posts |
Posted - 04/19/2026 : 13:22:21
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| SOLVED!!! Got a tip from a member on digital-kaos. I disconnected pin 6 and 7 from the adapter. Don't know why I needed it. Because other folks had done it 100% earlier. Well now we going to test the immo off. Thanks for your patience anniel! |
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| Reply #25
anniel
2622 Posts |
Posted - 04/20/2026 : 03:59:43
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quote:
Originally posted by Bamse82
SOLVED!!! Got a tip from a member on digital-kaos. I disconnected pin 6 and 7 from the adapter. Don't know why I needed it. Because other folks had done it 100% earlier. Well now we going to test the immo off. Thanks for your patience anniel!
Good find. |
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| Reply #26
moverspuertorico
USA
2 Posts |
Posted - 04/23/2026 : 07:43:42
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Topic |
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Toyota denso 93c56 programming with t48
