Ok, i'm back.
I've check back my wiring again and the wiring tat disconnected from previous AT setup is the whole wiring tat attach to the CVT b/box coz manual dun need these wiring and just leave it there after disconnet it. Secondly come to the ECU. Our AT D15B come with two ecu, one is the main ecu and another one is the auto control unit. My main ecu No. is 37820-P2J-J62 947-138643 and the auto control unit is 28100-P2J-023, so unplug the socket for the AT Control Unit which suppose to have 2 sockets then the unit can throw away lah.
3rd is the socket from the engine bay which also suppose to have 2 sockets tat are not connected. These 2 sockets also wrap in the same wire with oil sensor or water temp. (not sure) which attach to the engine block.