astra G 1.7dtl no communication

[losing.control]

Hi friends i got here one newecu with number 12249767 / 8973583775 1.7L/TX2 and try to flash with galletto but now it shows only ---------------- no informatyion and i cant write it give me error.
Any suggestion to write this ecu again

[imoturbo]

ry to write with carprog for me it works

[imoturbo]

try to write with carprog for me it works GOOD LUCK

[losing.control]

i will give a shoot tomorrow,hope it runs ok.my first step was clone the pin from older ecu to this one,and 2nd was write the flash also,we write ok,say to turn the ignition off,and then on.all ok at this point.after this no more communication with ecu.
I will try to program the epprom tomorrow and see what happens.maybe the epprom erase.

[nutloose]

use Tech2 or MDI and carprog wiring diagram to SPS it on the bench. Reset the ecu with carprog and then re-fit and carry out immobiliser function.. >replace ECU.
I think the LTX2 ecu is K line comms, make sure the pullup resistor is working.
N

[losing.control]

i dont have tech2,only car prog and opcom,i cant reset the ecu with car prog,it says ECU NOT FOUND all the time.

[losing.control]

use Tech2 or MDI and carprog wiring diagram to SPS it on the bench. Reset the ecu with carprog and then re-fit and carry out immobiliser function.. >replace ECU.
I think the LTX2 ecu is K line comms, make sure the pullup resistor is working.
N


here i can find that pullup resistor friend!what you mean about that.thanks

[nutloose]

K line comms have pullup
if it doesn't work you have no comms

(if it is a NEW from factory/dealer ecu it has no calibration loaded and should be done with either tech2 or J2534 device)

If you had comms to start first session and now you haven't OOPS!