Page 1256 of 1354

SF0R4−02
S01912
Ohmmeter
Continuity
S01913
Ohmmeter
No Continuity
S01915
Air
E
F
S01916
BatteryAir
E
F
− SFIVSV FOR EVAPORATIVE EMISSION (EVAP)
SF−45
1996 RAV4 (RM447U)
INSPECTION
1. REMOVE AIR CLEANER CAP ASSEMBLY (See page
ST−4)
2. REMOVE VSV
3. INSPECT VSV
4. INSPECT VSV FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between the
terminals.
Resistance: At 20°C (68°F): 30 −34 Ω
If there is no continuity, replace the VSV.
5. INSPECT VSV FOR GROUND
Using an ohmmeter, check that there is no continuity between
each terminal and the body.
If there is continuity, replace the VSV.
6. INSPECT VSV OPERATION
(a) Check that air does not flow from ports E to F.
NOTICE:
Never apply more than 60 kPa (0.61 kgf/cm
2, 8.7 psi) of
pressure compressed air to the VSV.
(b) Apply battery positive voltage across the terminals.
(c) Check that air flows from ports E to F.
If operation is not as specified, replace the VSV.
7. REINSTALL VSV
8. REINSTALL AIR CLEANER CAP ASSEMBLY
Page 1258 of 1354
SF0R6−02
S01921
ContinuityOhmmeter
S01922
Ohmmeter
No Continuity
S01923
Air
EG
F
S01924
Air
G E
F
Battery
− SFIVSV FOR VAPOR PRESSURE SENSOR
SF−47
1996 RAV4 (RM447U)
INSPECTION
1. REMOVE AIR CLEANER CAP ASSEMBLY (See page
ST−4)
2. REMOVE VSV
3. INSPECT VSV
4. INSPECT VSV FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between the
terminals.
Resistance: At 20°C (68°F): 33 − 39 Ω
If there is no continuity, replace the VSV.
5. INSPECT VSV FOR GROUND
Using an ohmmeter, check that there is no continuity between
each terminal and the body.
If there is continuity, replace the VSV.
6. INSPECT VSV OPERATION
(a) Check that the air flows from ports E to G.
(b) Apply battery positive voltage across the terminals.
(c) Check that the air flows from ports E to F.
If operation is not as specified, replace the VSV.
7. REINSTALL VSV
8. REINSTALL AIR CLEANER CAP ASSEMBLY
Page 1264 of 1354

SF0RC−02
S01943
Voltmeter
E2 VC
S01925
Vacuum
ECM
PIM
E2 Voltmeter
66.7
500
19.69Applied
Vacuum
kPa
mmHg
in.Hg
Voltage
drop V0.3 − 0.5 0.7 − 0.9 1.1 − 1.3 1.5 − 1.7 1.9 − 2.1 13.3
100
3.94 26.7
200
7.87 40.0
300
11.81 53.5
400
15.75
− SFIMANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
SF−53
1996 RAV4 (RM447U)
INSPECTION
1. INSPECT POWER SOURCE VOLTAGE OF MAP SEN-
SOR
(a) Disconnect the MAP sensor connector.
(b) Turn the ignition switch ON.
(c) Using a voltmeter measure the voltage between connec-
tor terminals VC and E2 of the wiring harness side.
Voltage: 4.5 − 5.5 V
(d) Turn the ignition switch to LOCK.
(e) Reconnect the MAP sensor connector.
2. INSPECT POWER OUTPUT OF MAP SENSOR
(a) Turn the ignition switch ON.
(b) Disconnect the vacuum hose on the air intake chamber
side.
(c) Connect a voltmeter to terminals PIM and E2 of the ECM,
and measure the output voltage under ambient atmo-
spheric pressure.
(d) Apply vacuum to the MAP sensor in 13.3 kPa (100 mmHg,
3.94 in.Hg) segments to 66.7 kPa (500 mmHg, 19.69
in.Hg).
(e) Measure the voltage drop from step (c) above for each
segment.
Voltage drop
(f) Reconnect the vacuum hose to the air intake chamber.
Page 1266 of 1354

SF0RE−02
− SFIVAPOR PRESSURE SENSOR
SF−55
1996 RAV4 (RM447U)
INSPECTION
1. INSPECT POWER SOURCE VOLTAGE OF VAPOR
PRESSURE SENSOR
(a) Disconnect the vapor pressure sensor connector.
(b) Turn the ignition switch ON.
(c) Using a voltmeter, measure the voltage between connec-
tor terminals VC and E2 of the wiring harness side.
Voltage: 4.5 − 5.5 V
(d) Turn the ignition switch to LOCK.
(e) Reconnect the vapor pressure sensor connector.
2. INSPECT POWER OUTPUT OF VAPOR PRESSURE
SENSOR
(a) Turn the ignition switch ON.
(b) Disconnect the EVAP hose from the vapor pressure sen-
sor.
(c) Connect a voltmeter to terminals PTNK and E2 of the
ECM, and measure the output voltage under the following
conditions:
(1) Apply vacuum (2.0 kPa, 15 mmHg, 0.59 in.Hg) to
the vapor pressure sensor.
Voltage: 1.3 − 2.1 V
(2) Release the vacuum from the vapor pressure sen-
sor.
Voltage: 3.0 − 3.6 V
(3) Apply pressure (1.5 kPa, 15 gf/cm
2, 0.22 psi) to the
vapor pressure sensor.
Voltage: 4.2 − 4.8 V
(d) Reconnect the EVAP hose to the vapor pressure sensor.