Toyota Celica 2005 Repair Manual page 718

11 Check voltage between terminals VC and E2 of ECM connector.
VC
E2
A19522
OK
12 Check voltage between terminals PTNK and E2 of ECM connectors.
E2
Disconnect
A19627
A19432
NG
2005 CELICA (RM1131U)
DIAGNOSTICS
CHECK:
(a) Remove the ECM cover.
(b) Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals VC and E2 of the ECM
connector.
OK:
Voltage: 4.5 to 5.5 V
A19630
NG
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
− ENGINE (2ZZ−GE)
Replace ECM (See page SF−78).
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 14.
717
DI−519