100%
• M-REL ↔ E1
① There is no voltage between ECU terminals M-REL and E1.
(IG S/W ON)
② Check that there is voltage between ECU terminal M-REL and body ground. (IG S/W ON)
NO
Check wiring between ECU terminal E1 and body ground.
OK
BAD
Repair or replace
Check NO. 1 main relay and wiring harness.
BAD
Replace
OK
Try another ECU.