It happens occasionally for me. It seems to vary depending on ECU and if you are doing it on the bench or in the car. Also some ECUs seem more fussy than others.
Thank you very much, turboat.
This is the log. And I make a new topic on General Discussion.
Validated FTDI device is in dumb mode.
Disconnected
Connecting...
Starting slow init connection.
Connecting to address 0x01.
Slow init succeeded.
Switching to KWP1281 session.
KWP1281 connect info: °6A906032JR 1.8l 5VT NB AG4 3999
Connecting to address 0x01.
Slow init succeeded.
Switching to KWP2000 session.
Connected
Disabling Windows sleep mode.
Reading ECU flash memory.
ECU reports programming session preconditions have been met.
Negotiating communication timings.
Successfully changed to new communication timings.
Requesting security access.
ECU reports that security access request was rejected.
Starting diagnostic session.
Successfully started diagnostic session.
Negotiating communication timings.
Successfully changed to new communication timings.
Requesting security access.
Security access granted.
Validating flash memory starts at 0x00800000 and ends at 0x00900000.
Memory layout is valid.
Starting to read data block.
Requesting upload from ECU for address range 0x00800000 to 0x0080FFFF.
Request upload from ECU succeeded.
Starting data transfer.
1% complete.
2% complete.
3% complete.
4% complete.
5% complete.
6% complete.
Data transfer complete.
Requesting data transfer exit.
Successfully exited data transfer.
Starting to read data block.
Requesting upload from ECU for address range 0x00810000 to 0x0081FFFF.
Request upload from ECU succeeded.
Starting data transfer.
7% complete.
8% complete.
9% complete.
10% complete.
11% complete.
12% complete.
Data transfer failed.
Reading ECU flash memory failed. Trying to force ECU to recognize read operation is complete.
Finished forcing ECU to recognize that failed read operation is complete.
Reading ECU flash memory failed.
100% complete.
Restoring Windows sleep mode.
