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leopedranski
3rd May, 2012, 07:37 AM
Hello.

Need some help with Hitachi Dr.Zx trouble codes reset. I can read MC (machine ecu) trouble codes, but when i try to delete errors says "comm lost"
any idea? What is Retry B? How to access? Is similar to service mode?

Regards,

ukge4122
4th May, 2012, 01:28 PM
Retry B being there is a failure in the Controller.

I would recommend, trying a new controller.

leopedranski
6th May, 2012, 03:24 PM
This is a brand new controller. old one is partially destroyed. I will replace upc controller , and eeprom from old one. ill keep u posted

regards,

leopedranski
6th May, 2012, 08:44 PM
All parts mentioned early are changed. Still same errors. I dont think retry b has to do with broken controller. Retry B is the solution to delete errors. Still cannot access this function. Anyone who can help?

regards.

leopedranski
15th May, 2012, 06:17 AM
You were partially right Ukge, new MC was broken since the day one, got another one new replacement all is fine now

RetryB is hitachi way to delete DTc's.

regards,