Toyota Celica 2005 Repair Manual page 713

DI−514
20 Check voltage between terminals PTNK and E2 of ECM connectors.
E2
Disconnect
A19627
A19432
NG
21 Check for open and short in harness and connector between vapor pressure
sensor and ECM (See page IN−30).
OK
Replace ECM (See page SF−78).
22 Check fuel tank inlet valve.
OK
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
(a) Remove the ECM cover.
(b) Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals PTNK and E2 of the
ECM connector under following condition (1) and (2).
(1)
PTNK
(2)
NOTICE:
The vacuum applied to the vapor pressure sensor must be
less than 66.7 kPa (500 mmHg, 19.7 in.Hg).
OK:
Vacuum
Condition (1) Voltage: 2.9 to 3.7 V
Condition (2) Voltage: 0.5 V or less
OK
A19637
NG
NG
− ENGINE (2ZZ−GE)
Disconnect the vacuum hose from the vapor pres-
sure sensor.
Using the MITYVAC (Hand−Held Vacuum Pump),
apply a vacuum of 4.0 kPa (30 mmHg, 1.18 in.Hg)
to the vapor pressure sensor.
Go to step 22.
Repair or replace harness or connector.
Replace fuel tank inlet valve.
712