Mitsubishi E6T42 DTC off

[g5n14]

Hey guys!
Have here Colt 1.3 E6T42 ECU

Trying to delete P1603

Any idea how to to DTC off on this ECU?

Any help much appreciated, thanks!

[g5n14]

0x500AA to 02 (old: 42).

I guess...
ECU Config area, 02 should mean no additional battery installed (P1603 irrelevant)

Did not test though...