Toyota T100 1996 Service Manual page 483

12 Check operation of VSV for vapor pressure sensor (See page SF−50).
OK
13 Check for open and short in harness and connector between EFI main relay
(Marking: EFI), VSV for vapor pressure sensor and ECM (See page IN−26).
OK
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS − ENGINE (5VZ−FE)
NG Replace VSV.
NG Repair or replace harness or connector.
DI−219