programming voltage is 4.2 volts programming voltage is too

[killa996]

reading ecu programming voltage
programming voltage is 4.2 volts
programming voltage is too low!


this is the error i get. i have a stock 02 wrx. the test flash works but when i try to do the real think it wont work. i checked the jumper connecter and it says .2ohms. checked my car battery with the car off and it says 13.5v.

i cant think of what else is could be. i tried to search but didnt any usefull info.

thanks
danny

[killa996]

can it be that my car battery is dying?

[Rotawerx]

If your car still starts, then no. Check battery with the ignition on and engine off, should read the same.

I suggest checking earths first, has your dash been out at all? Sounds odd.

[korhan]

in some situations if you find an map from the net it may be in 160k size you have to change the map size 160 to 192 from the convert option.

[riderz4101]

if you write connector isnt inserted properly or not inserted at all, it does that

[cboles]

Since it appears you have a voltmeter, you could check to see that the 12V programming voltage is present when you try to reflash. This voltage passes through the blue flashing connector we provided.

Colby

[killa996]

the rom file is 192k. ive been trying to figure out why its not working im getting the same problem over and over. anyone else have any ideas??

[Element Tuning]

I'm having this same problem with my 02 WRX. Flash block connected, test plug connected on both the drivers side and passenger side, battery voltage ok (on charger) but when I test flash the ECU I get this error even after multiple attempts:

[0.010] reading ecu programming voltage
[2.023] unable to read programming voltage!

I have no problem retreiving the image from the ECU, I edited the image with Enginuity, but I cannot flash. If I take my original image I do not get this error code and the test flash passes. Here are my logs after attempting to flash the edited image, original image, and every other image I had.

[0.000] 196608 byte image read.
[8.703] Test flashing image to ECU memory...
[0.110] kernel flash disable
[3.054] denso02_bootloader_cmd_start
[0.030] 1452 byte kernel read.
[0.000] kernel checksum is valid (n = 2).
[0.201] writing denso kernel area addr: 020000 len: 05AC
[2.844] kernel get version
[0.030] kernel version is : OpenECU Kernel V0.91
[0.400] comparing ECU flash memory pages to image file
[0.000] comparing ECU flash memory pages to image file
[0.000] page ecu CRC32 img CRC32 same?
[0.331] 00 692BCE58 692BCE58 YES
[0.340] 01 A9D6EDFD A9D6EDFD YES
[0.331] 02 36085BE0 3F99485B NO
[0.320] 03 780B23DE 780B23DE YES
[0.341] 04 A345F755 A345F755 YES
[0.330] 05 73C45393 73C45393 YES
[0.321] 06 C979B9D8 C979B9D8 YES
[0.340] 07 09F4E1B3 09F4E1B3 YES
[0.331] 10 14C512CF DFDF0F73 NO
[0.320] 11 C466072A 28709587 NO
[0.010] reading ecu programming voltage
[2.023] unable to read programming voltage!
[17.916] 196608 byte image read.
[7.080] Test flashing image to ECU memory...
[0.000] kernel flash disable
[3.064] denso02_bootloader_cmd_start
[0.030] 1452 byte kernel read.
[0.000] kernel checksum is valid (n = 2).
[0.201] writing denso kernel area addr: 020000 len: 05AC
[2.844] kernel get version
[0.030] kernel version is : OpenECU Kernel V0.91
[0.400] comparing ECU flash memory pages to image file
[0.000] comparing ECU flash memory pages to image file
[0.000] page ecu CRC32 img CRC32 same?
[0.331] 00 692BCE58 692BCE58 YES
[0.320] 01 A9D6EDFD A9D6EDFD YES
[0.341] 02 36085BE0 36085BE0 YES
[0.330] 03 780B23DE 780B23DE YES
[0.331] 04 A345F755 A345F755 YES
[0.350] 05 73C45393 73C45393 YES
[0.331] 06 C979B9D8 C979B9D8 YES
[0.330] 07 09F4E1B3 09F4E1B3 YES
[0.341] 10 14C512CF 14C512CF YES
[0.330] 11 C466072A C466072A YES
[0.000] flash image is identical! exiting.
[39.106] 196608 byte image read.
[8.252] Test flashing image to ECU memory...
[0.000] kernel flash disable
[3.075] denso02_bootloader_cmd_start
[0.030] 1452 byte kernel read.
[0.000] kernel checksum is valid (n = 2).
[0.200] writing denso kernel area addr: 020000 len: 05AC
[2.854] kernel get version
[0.030] kernel version is : OpenECU Kernel V0.91
[0.401] comparing ECU flash memory pages to image file
[0.000] comparing ECU flash memory pages to image file
[0.000] page ecu CRC32 img CRC32 same?
[0.340] 00 692BCE58 692BCE58 YES
[0.341] 01 A9D6EDFD A9D6EDFD YES
[0.330] 02 36085BE0 3F99485B NO
[0.331] 03 780B23DE 780B23DE YES
[0.340] 04 A345F755 A345F755 YES
[0.331] 05 73C45393 73C45393 YES
[0.340] 06 C979B9D8 C979B9D8 YES
[0.341] 07 09F4E1B3 09F4E1B3 YES
[0.330] 10 14C512CF DFDF0F73 NO
[0.341] 11 C466072A 28709587 NO
[0.010] reading ecu programming voltage
[2.033] unable to read programming voltage!
[148.633] 196608 byte image read.
[12.598] Test flashing image to ECU memory...
[0.000] kernel flash disable
[3.075] denso02_bootloader_cmd_start
[0.030] 1452 byte kernel read.
[0.000] kernel checksum is valid (n = 2).
[0.200] writing denso kernel area addr: 020000 len: 05AC
[2.844] kernel get version
[0.020] kernel version is : OpenECU Kernel V0.91
[0.401] comparing ECU flash memory pages to image file
[0.000] comparing ECU flash memory pages to image file
[0.000] page ecu CRC32 img CRC32 same?
[0.340] 00 692BCE58 692BCE58 YES
[0.331] 01 A9D6EDFD A9D6EDFD YES
[0.340] 02 36085BE0 36085BE0 YES
[0.321] 03 780B23DE 780B23DE YES
[0.330] 04 A345F755 A345F755 YES
[0.321] 05 73C45393 73C45393 YES
[0.320] 06 C979B9D8 C979B9D8 YES
[0.331] 07 09F4E1B3 09F4E1B3 YES
[0.320] 10 14C512CF 3190E2C3 NO
[0.331] 11 C466072A E8C141D1 NO
[0.000] reading ecu programming voltage
[2.033] unable to read programming voltage!
[23.393] 196608 byte image read.
[8.322] Test flashing image to ECU memory...
[0.000] kernel flash disable
[3.065] denso02_bootloader_cmd_start
[0.020] 1452 byte kernel read.
[0.000] kernel checksum is valid (n = 2).
[0.200] writing denso kernel area addr: 020000 len: 05AC
[2.854] kernel get version
[0.020] kernel version is : OpenECU Kernel V0.91
[0.401] comparing ECU flash memory pages to image file
[0.000] comparing ECU flash memory pages to image file
[0.000] page ecu CRC32 img CRC32 same?
[0.320] 00 692BCE58 5C24710E NO
[0.341] 01 A9D6EDFD 26779743 NO
[0.330] 02 36085BE0 D681F4A8 NO
[0.330] 03 780B23DE 76091E52 NO
[0.331] 04 A345F755 C9F9E561 NO
[0.340] 05 73C45393 12E5C16D NO
[0.331] 06 C979B9D8 CA0E2CF1 NO
[0.330] 07 09F4E1B3 8218CE50 NO
[0.321] 10 14C512CF 2900F43E NO
[0.320] 11 C466072A A8A8776D NO
[0.000] reading ecu programming voltage
[2.033] unable to read programming voltage!
[19.889] 196608 byte image read.
[7.771] Test flashing image to ECU memory...
[0.000] kernel flash disable
[3.064] denso02_bootloader_cmd_start
[0.030] 1452 byte kernel read.
[0.000] kernel checksum is valid (n = 2).
[0.201] writing denso kernel area addr: 020000 len: 05AC
[2.864] kernel get version
[0.020] kernel version is : OpenECU Kernel V0.91
[0.410] comparing ECU flash memory pages to image file
[0.000] comparing ECU flash memory pages to image file
[0.000] page ecu CRC32 img CRC32 same?
[0.331] 00 692BCE58 8051C4DE NO
[0.330] 01 A9D6EDFD 6E84A93E NO
[0.341] 02 36085BE0 C949D99B NO
[0.320] 03 780B23DE 8D2E0634 NO
[0.331] 04 A345F755 71FA9AE0 NO
[0.320] 05 73C45393 F7FE16D8 NO
[0.341] 06 C979B9D8 56326D4C NO
[0.330] 07 09F4E1B3 1675D4F1 NO
[0.341] 10 14C512CF 9A6BBDA8 NO
[0.360] 11 C466072A BDA09DD6 NO
[0.010] reading ecu programming voltage
[2.023] unable to read programming voltage!
[25.787] 196608 byte image read.
[10.305] Test flashing image to ECU memory...
[0.000] kernel flash disable
[3.054] denso02_bootloader_cmd_start
[0.031] 1452 byte kernel read.
[0.000] kernel checksum is valid (n = 2).
[0.200] writing denso kernel area addr: 020000 len: 05AC
[2.854] kernel get version
[0.030] kernel version is : OpenECU Kernel V0.91
[0.401] comparing ECU flash memory pages to image file
[0.000] comparing ECU flash memory pages to image file
[0.000] page ecu CRC32 img CRC32 same?
[0.330] 00 692BCE58 95EECB0A NO
[0.341] 01 A9D6EDFD BEC1C9EF NO
[0.330] 02 36085BE0 ED12BFA3 NO
[0.340] 03 780B23DE F65FEBBC NO
[0.341] 04 A345F755 71FA9AE0 NO
[0.330] 05 73C45393 9447808A NO
[0.321] 06 C979B9D8 DC572A50 NO
[0.340] 07 09F4E1B3 36BC4A8F NO
[0.331] 10 14C512CF 1BA0DB8A NO
[0.340] 11 C466072A A532AC32 NO
[0.000] reading ecu programming voltage
[2.033] unable to read programming voltage!

This ecu was flashed by me 4-5 years ago with Ecutek but I don't see there being a conflict since the original image results in no error.. Any help would be much appreciated.

Thanks,
Phil
www.elementtuning.com

[Element Tuning]

Since it appears you have a voltmeter, you could check to see that the 12V programming voltage is present when you try to reflash. This voltage passes through the blue flashing connector we provided.

Colby

I'm only seeing 4.1 V through the flash block not 12v. This is all the voltage I get with or without the flash block installed. Any ideas why this would be 4.1v instead of 12v?

[Freon]

So just plugging your multimeter into the open flash block yields only 4.1v?

I'd try pushing the probe through the back side of the connector. Could be a lose crimp on the connector.

I guess the only thing to do would be to trace up the wire and check for breaks or cuts. It's kinda odd you get 4.1v regardless. Perhaps you could also run a 12v jumper from another source to the drain side of the flash block. I'm not positive that would work, but might be worth a shot.

[Rotawerx]

is 4.1V on which side, the ECU side or supply side? I just had a thought that 4.1 could be what is supposed to be on that wire at the ecu normally, so maybe that is fine and the 12V supply is at fault with NO power there? I dont know how it is supposed to work, just putting ideas out there.

Am assuming 4.1=5V allowing for a little voltage drop

[Element Tuning]

is 4.1V on which side, the ECU side or supply side? I just had a thought that 4.1 could be what is supposed to be on that wire at the ecu normally, so maybe that is fine and the 12V supply is at fault with NO power there? I dont know how it is supposed to work, just putting ideas out there.

Am assuming 4.1=5V allowing for a little voltage drop

I just probed the pins where the blue jumper block connects to. I also think this voltage is from the 5v rail. As Freon mentioned in the previous post I am tempted to jump 12 volts here but I want to be sure 12v is accurate vs. 5 volts. If anyone can confirm the jumper block should see +12v that would be much appreciated. I'm affraid that there is only supposed to be 4-5volts here which trips a relay delivering +12v elsewhere to allow the flash process.

What pin at the ECU needs +12v to program? I could probe this pin if someone has the location to check for voltage.

Thanks for the help.
Phil

[red^shark]

Did you hook your battery charger up to the car and retry


Red

[Element Tuning]

Yes but since the battery is already fully charged the charger turns off after a couple of minutes. So far definitely not a battery power issue.

Thanks for the help.
Phil

[red^shark]

Out of curiosity

What did your voltmeter (dmm) say the voltage was at the battery?

Did you watch to see how fast the voltage drops while you have the ignition on?

I think you will drop out of an acceptable voltage range to the ecu much faster then you realize. A "fully charged battery" is not good enough.
This has been stated in several "flash" threads previously.

Red