It’s not possible to read/write this ecu (2005 Zafira a 2.0 100hp) with kess V2 China clone, it’s psg16, you need mpps v18 and direct cable to pump.
Kess can write zafira 2.0 until 2003 year, but can’t read.
mpps v18 reads & writes psg16 zafira feedbacks:
psg16 zafira, read, write OK checksums 10 corrected 2 is normal. Let mpps do checksums nothing else. If security timeout error wait an hour powered up and try again. Then try immediately again and worked.
OPEL Signum PSG16
2.2CDTI readout as a Zafira.
astra h 1.9 tva off OBD and Zafira B 1.9 EGR off OFF ok
zafira Y20DTH PSG16 read/write – OK
I made an Opel Zafira 2.0L with y20dth engine hybrid control unit PSG16.
Connect with the tricore cable CAN-L and CAN-H directly to the pump.
MPPS has read the PSG16 in 2-3 minutes, to write 7-8 minutes.
Make sure you have enough voltage when writing because the fan starts running (or disconnect it before write) if something goes wrong here you’re f**ked.
MPPS calculates the checksum automatically all perfect.
I use MPPS v18 from China reworked.
Look at the wiring diagram for psg16 pump: