Toyota T100 1996 Service Manual page 389

3 Check circuit opening relay (See page MF−42).
OK
4 Check voltage between terminal FC of ECM connector and body ground (See
page MF−42).
OK
5 Check fuel pump (See page IG−1).
OK
6 Check for open in harness and connector between circuit opening relay and fuel
pump, fuel pump and body ground (See page IN−26).
OK
Check and replace ECM.
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS − ENGINE (3RZ−FE)
NG Replace circuit opening relay.
NG Check for open in harness and connector be-
tween EFI main relay and circuit opening relay,
circuit opening relay and ECM.
NG Repair or replace fuel pump.
NG Repair or replace harness or connector.
DI−125