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View Full Version : Denso 24V ECU failed to read



era007
29th October, 2018, 05:51 PM
I tried to back up this Denso ECU but it failed two times . This ECU is 24V one and I just used the original 12V power adaptor . I have checked the connections (144300T105 cable) several times they were all fine.


Do I have to power up Ktag using a 24 V DC power supply for this ECU ? . I have attached a pictures of error message & ECU

567984567985567986

voltechcar
29th October, 2018, 07:41 PM
this is ecu with Toyota and have 12v not 24, genuine k-tag read this ecu without any problems.

era007
30th October, 2018, 01:52 AM
this is ecu with Toyota and have 12v not 24, genuine k-tag read this ecu without any problems.
Have you ever had to supply 24V to Ktag/ECU when reading ? this ECU is from a truck which has 24V. I am just wondering why Ktag original cant read this ECU

voltechcar
30th October, 2018, 08:52 AM
I use only 12v, this is not truck, only truck need 24v. Check if car start on this ecu after the attempt read cpu ?

ohkarol
30th October, 2018, 11:26 AM
you are totally wrong, he has hino truck ecu which is 24v, just look at the picture
you can also notice ktag is geniue

amcharge
30th October, 2018, 09:43 PM
I read without problems the denso ecus 24v with ktag 7.20 clone with power supply 12v soldering the wires in the plate. you must remove the varnish where you will make the welds well ...

era007
31st October, 2018, 06:55 PM
I read without problems the denso ecus 24v with ktag 7.20 clone with power supply 12v soldering the wires in the plate. you must remove the varnish where you will make the welds well ...
I cleaned those pads using a contact cleaner. solder joins were all good. According to alientech this is s strange issue. anyway thanks for sharing your experience. if you still have a picture of the 24V denso ECU that you successfully read, please post here