1996 TOYOTA T100 sensor

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Vapor Pressure SensorECM
From
Battery
From
IG SwitchII
IDIM12H
2D2C
2BE7
E6
E7
E6
E6 3
92
25
12 3
AA2 1
8 2 1 VSV (for EVAP)
VSV
(for Vapor
Pressure Sensor) LG
W−B B−O BP L−R
BR13
22 3
2
1
10
IGN
Instrument
Panel J/BDriver Side J/B
EFI Relay
EB
J/B
No.3VC
E2
E1
E01
E01 TPC EVP 1PTNK
BR
EFI
A
12 LGW−L 3
B−O5 V
− DIAGNOSTICSENGINE (5VZ−FE)
DI−213
1996 TOYOTA T100 (RM449U)
WIRING DIAGRAM
INSPECTION PROCEDURE
TOYOTA hand−held tester:
1 Check VSV connector for EVAP, VSV connector for vapor pressure sensor and
vapor pressure sensor connector for looseness and disconnection.
NG Repair or connect VSV or sensor connector.
OK

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ON
E2(−)VC(+)
DI−214
− DIAGNOSTICSENGINE (5VZ−FE)
1996 TOYOTA T100 (RM449U)
2 Check vacuum hose between throttle body and VSV for EVAP, VSV for EVAP and
charcoal canister, charcoal canister and VSV for vapor pressure sensor, VSV for
vapor pressure sensor and vapor pressure sensor.
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
3 Check voltage between terminals VCC and E2 of ECM connector.
PREPARATION:
(a) Remove the glove compartment (See page SF−61).
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminals VC and E2 of ECM con-
nector.
OK:
Voltage: 4.5 − 5.5 V
NG Check and replace ECM (See page IN−26).
OK

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6S0 00 47A06383
E2(−) PTNK(+)
ON
Vacuum
− DIAGNOSTICSENGINE (5VZ−FE)
DI−215
1996 TOYOTA T100 (RM449U)
4 Check voltage between terminals PTNK and E2 of ECM connector.
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) Disconnect the vacuum hose from the vapor pres-
sure sensor.
(2) Using the MITYVAC (Hand−Held Vacuum Pump),
apply a vacuum to the vapor pressure sensor.
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
OK Go to step 6.
NG
5 Check for open and short in harness and connector between vapor pressure
sensor and ECM (See page
IN−26).
NG Repair or replace harness or connector.
OK
Replace vapor pressure sensor.

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VSV Connector
START
For M/T
For A/TE2 (−) PTNK (+)
E2 (−) PTNK (+)
DI−218
− DIAGNOSTICSENGINE (5VZ−FE)
1996 TOYOTA T100 (RM449U)
10 Connect TOYOTA hand−held tester, when VSV connector for vapor pressure sen-
sor is disconnected and VSV for EVAP is ON, measure voltage between terminals
PTNK and E2 of ECM connector.
PREPARATION:
(a) Connect the TOYOTA hand−held tester to the DLC3.
(b) Disconnect the VSV connector for the vapor pressure
sensor.
(c) Select the ”ACTIVE TEST” mode on the TOYOTA hand−
held tester.
(d) Start the engine.
CHECK:
Measure voltage between terminals PTNK and E2 of ECM con-
nector, when VSV for EVAP is ON, using the TOYOTA hand−
held tester.
OK:
Voltage: 2.0 V or less
OK Go to step 13.
NG
11 Check vacuum hose between charcoal canister and VSV for vapor pressure sen-
sor, vapor pressure sensor and VSV for vapor pressure sensor.
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

Downloaded from www.Manualslib.com manuals search engine − DIAGNOSTICSENGINE (5VZ−FE)
DI−219
1996 TOYOTA T100 (RM449U)
12 Check operation of VSV for vapor pressure sensor (See page SF−50).
NG Replace VSV.
OK
13 Check for open and short in harness and connector between EFI main relay
(Marking: EFI), VSV for vapor pressure sensor and ECM (See page IN−26).
NG Repair or replace harness or connector.
OK

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P24346 P24347
A00117
Start
Stop Engine
OFF ON OFF ON VSV for
Vapor
Pressure
Sensor
VSV for
EVAP
5 sec. 5 sec.
Measure Voltage
E2 (−) PTNK (+)
E2 (−) PTNK (+)
For M/T
For A/T
DI−220
− DIAGNOSTICSENGINE (5VZ−FE)
1996 TOYOTA T100 (RM449U)
14 Check charcoal canister.
PREPARATION:
(a) Connect the TOYOTA hand−held tester to the DLC3.
(b) Remove the fuel tank cap.
(c) Disconnect the VSV connector for the vapor pressure
sensor.
(d) Select the ”ACTIVE TEST” mode on the TOYOTA hand−
held tester.
(e) Start the engine.
(f) The VSV for the EVAP is ON by the TOYOTA hand−held
tester and remains on for 5 sec.
CHECK:
Measure voltage between terminals PTNK and E2 of ECM con-
nector 5 sec. after switching VSV for EVAP from ON to OFF.
OK:
Voltage: 2.5 V or less
NG Replace charcoal canister.
OK
Check and replace ECM (See page IN−26).

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ON
E2(−)VC(+)
− DIAGNOSTICSENGINE (5VZ−FE)
DI−221
1996 TOYOTA T100 (RM449U)
OBD II scan tool (excluding TOYOTA hand−held tester):
1 Check VSV connector for EVAP, VSV connector for vapor pressure sensor and
vapor pressure sensor connector for looseness and disconnection.
NG Repair or connect VSV or sensor connectors.
OK
2 Check vacuum hoses between throttle body and VSV for EVAP, VSV for EVAP
and charcoal canister, charcoal canister and VSV for vapor pressure sensor, VSV
for vapor pressure sensor and vapor pressure sensor.
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
3 Check voltage between terminals VCC and E2 of ECM connector.
PREPARATION:
(a) Remove the glove compartment (See page SF−61).
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminals VC and E2 of ECM con-
nector.
OK:
Voltage: 4.5 − 5.5 V
NG Check and replace ECM (See page IN−26).
OK

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6S0 00 47A06383
E2(−) PTNK(+)
ON
Vacuum
DI−222
− DIAGNOSTICSENGINE (5VZ−FE)
1996 TOYOTA T100 (RM449U)
4 Check voltage between terminals PTNK and E2 of ECM connector.
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) Disconnect the vacuum hose from the vapor pres-
sure sensor.
(2) Using the MITYVAC (Hand−Held Vacuum Pump),
apply a vacuum to the vapor pressure sensor.
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
OK Go to step 6.
NG
5 Check for open and short in harness and connector between vapor pressure
sensor and ECM (See page IN−26).
NG Repair or replace harness or connector.
OK
Replace vapor pressure sensor.