Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

After waiting for many days, finally, the uprated relays arrived from US.












As seen in my previous EPS Controller Service that
you can find in the Blog category section EPS – Power Steering,
carefully masked the board and drilled the extra holes for
the high current capacity spec relay.


Then, scraped off the coating at both side of the board to
apply soldering coating before installing the new relays.


Honda uprated just one of the relay (the one at the corner) but
I prefer replacing both of them considering the circuit design.

Also, you can find similar spec relay from Tyco Electronics, etc that
you can buy within UK but I decided to use the one Honda used in
their later spec EPS controllers.

At least, it has been tested by Honda and also proved by all of the
later spec NSX on the street.










The high current capacity spec relay on the right.

‘H’ stands for the high current capacity spec.
The reason for drilling the extra holes.
The extra pins at terminal #30 and #87.















After carefully solder coated the newly created pad,
new relays were installed.

Will apply dash of coating later.




Quick check on the bench but can’t drive the high current
without the proper jig so just a quick check as part of T&Cs for
this service.

I already have another NSX with EPS at my place but it can't be
used for testing as -023 and -305 version EPS controller require
rotational sensor input from EPS rack that is not available on
the latest model NSX.
Without it, it will simply trigger the EPS error and shuts down the EPS.


Happy with the test so ready to be returned to the garage.


Thank you for using my service.

Regards,
Kaz