Toyota 1 MZ–FE Manual page 566

EG2–566
DIAGNOSTIC CHART
Check voltage of ECM power source.
Check continuity between terminal E1 and body
ground.
Check EFI main relay.
Check EFI fuse.
Check for open in harness and connector between
main relay and battery, main relay and ECM.
Check I G N fuse.
Check ignition switch.
Check for open in harness and connector between IG switch
and main relay, main relay and body ground.
1MZ–FE ENGINE – CIRCUIT INSPECTION
Proceed to next circuit inspection shown
on matrix chart .
Repair or replace harness or connector.
Replace EFI main relay.
Check for short in all the harness and
components connected to EFI fuse.
Repair or replace harness or connector.
Check for short in all the harness and
components connected to IGN fuse.
Replace ignition switch.