Toyota T100 1996 Service Manual page 525

2 Check for ECM power source circuit (See page DI−251).
OK
3 Check circuit opening relay (See page DI−255, step 3).
OK
4 Check voltage between terminal FC of ECM connector and body ground (See
page DI−255, step 4).
OK
5 Check fuel pump (See page SF−5).
OK
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS − ENGINE (5VZ−FE)
NG Repair or replace.
NG Replace circuit opening relay.
NG Check for open in harness and connector be-
tween EFI main relay and circuit opening relay
and ECM (See page IN−26).
NG Repair or replace fuel pump.
DI−261