Toyota RM787U, Service And Repair Manual, Page: 619 / 1976

- DIAGNOSTICS ENGINE
DI-81
235
Author: Date:
2001 SIENNA (RM787U)
NG Repair or replace.
OK
8 Check VSV connector for EVAP, VSV connector for CCV, VSV connector for pres-
sure switching valve and vapor pressure sensor connector for looseness and
disconnection.
NG Repair or connect VSV or sensor connector.
OK
9 Check vacuum hoses ((8), (9), (10) and (11) in Fig. 1 in circuit description).
CHECK:
(a)
Check that the vacuum hose is connected correctly.
(b) Check the vacuum hose for looseness and disconnection.
(c) Check the vacuum hose for cracks, hole, damage and blockage.
NG Repair or replace.
OK
10 Check voltage between terminals VC and E2 of ECM connector (See page
DI-72 ).
NG Check and replace ECM (See page IN-31 ).
OK
11 Check voltage between terminals PTNK and E2 of ECM connectors (See page
DI-72 ).
OK Go to step 13.