[4] Circuit Diagram ECU COMMON2 Constant current circuit Constant current circuit Charging circuit Q000099E WARNING: High voltage is applied to the wires connected to COMMON1, COMMON2, and the TWV #1-#6 terminals of the ECU. Exercise extreme caution to prevent electric shock. 13 COMMON1 2WV #1 (1st cylinder) 2WV #1 (1st cylinder) 2WV #2 (5th cylinder) 2WV #3 (3rd cylinder) 2WV #4 (6th cylinder)