Toyota T100 1996 Service Manual page 479

4 Check voltage between terminals PTNK and E2 of ECM connector.
ON
E2(−)
BE6653
S00568
P 2 4 9 7
6 S 0 0 0 4
7
NG
5 Check for open and short in harness and connector between vapor pressure
sensor and ECM (See page IN−26).
OK
Replace vapor pressure sensor.
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
PREPARATION:
(a) Remove the glove compartment (See page SF−61).
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminals PTNK and E2 of ECM con-
nector.
(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:
(1) Voltage: 2.9 − 3.7 V
(2) Voltage: 0.5 V or less
Vacuum
A06383
OK
NG
− ENGINE (5VZ−FE)
Disconnect the vacuum hose from the vapor pres-
sure sensor.
Using the MITYVAC (Hand−Held Vacuum Pump),
apply a vacuum to the vapor pressure sensor.
Go to step 6.
Repair or replace harness or connector.
DI−215