Toyota T100 1996 Service Manual page 473

2 Check for short in harness and connector between EGR gas temp. sensor and
ECM (See page IN−26).
OK
3 Check VSV for EGR (See page DI−196, step 5).
NG
4 Check operation of VSV for EGR (See page SF−49).
OK
5 Check for short in harness and connector between VSV and ECM
(See page IN−26).
OK
Check and replace ECM (See page IN−26).
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS − ENGINE (5VZ−FE)
NG Repair or replace harness or connector.
OK Check EGR valve (See page EC−9).
NG Replace VSV for EGR.
NG Repair or replace harness or connector.
DI−209