TOYOTA RAV4 1996 Service Repair Manual

S01898
SF0QO−03
S01946
P
E
R
S00037
Ohmmeter
Throttle Position Sensor
VC
VTA
E2
S01901
Disconnect
Plug
− SFITHROTTLE BODY
SF−27
1996 RAV4 (RM447U)
THROTTLE BODY
ON−VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
(b) Check the vacuum at each port.
Start the engine.
Check the vacuum with your finger.
Port nameAt idleOther than idle
PNo vacuumVacuum
ENo vacuumVacuum
RNo vacuumNo vacuum
2. INSPECT THROTTLE POSITION SENSOR
(a) Apply vacuum to the throttle opener.
(b) Disconnect the sensor connector.
(c) Using an ohmmeter, measure the resistance between
each terminal.
Clearance between
lever and stop screwBetween
terminalsResistance
0 mm (0 in.)VTA − E20.2 − 5.7 kΩ
Throttle valve fully
openVTA − E22.0 − 10.2 kΩ
−VC − E22.5 − 5.9 kΩ
(d) Reconnect the sensor connector.
3. INSPECT AND ADJUST THROTTLE OPENER
4. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
5. CHECK IDLE SPEED
Idle speed: 700 ± 50 rpm
6. CHECK AND ADJUST THROTTLE OPENER SETTING
SPEED
(a) Disconnect the vacuum hose from the throttle opener,
and plug the hose end.
(b) Maintain the engine at 2,500 rpm.
(c) Release the throttle valve.
(d) Check that the throttle opener is set.
Throttle opener setting speed:
1,300 − 1,500 rpm (w/ cooling fan OFF)

S01945
Throttle Opener
Adjusting Screw
2.5 mm Hexagon Wrench SF−28
− SFITHROTTLE BODY
1996 RAV4 (RM447U)
(e) Adjust the throttle opener setting speed by turning the
throttle opener adjusting screw.
(f) Reconnect the vacuum hose to the throttle opener.

SF0QP−02
− SFITHROTTLE BODY
SF−29
1996 RAV4 (RM447U)
COMPONENTS

SF0QQ−03
S01905
(4) (3)
(2)
(1)
S01907
A
B
Protrusion
(Bolt: Type A)
(Nut: Type B)B A
S01902
(1)
(3)(2) SF−30
− SFITHROTTLE BODY
1996 RAV4 (RM447U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. A/T:
DISCONNECT THROTTLE CABLE FROM THROTTLE
BODY
3. DISCONNECT ACCELERATOR CABLE FROM
THROTTLE BODY
4. REMOVE AIR CLEANER CAP ASSEMBLY (See page
ST−4)
5. REMOVE THROTTLE BODY
(a) Disconnect the throttle position sensor connector.
(b) Disconnect the IAC valve connector.
(c) Disconnect these hoses from the throttle body:
(1) PCV hose from air tube
(2) Vacuum hose from port ”R” of EGR vacuum modu-
lator
(3) Vacuum hose from port ”P” of EGR vacuum modu-
lator
(4) EVAP hose from chacoal canister
(d) Remove the 4 bolts (Type A) or the 2 bolts, 2 nuts (Type
B) and gasket, and diaconnect the throttle body from the
intake manifold.
Torque: 19 N·m (195 kgf·cm, 14 ft·lbf)
HINT:
At the time of installation, plaese refer to the following items.
Place a new gasket on the intake chamber, facing the pro-
trusion downward.
Each bolt is indicated in the illustration (Type A).
Bolt length:
A: 40 mm (1.57 in.)
B: 55 mm (2.17 in.)
(e) Disconnect these hoses from the throttle body:
(1) Water bypass hose from water outlet
(2) Water bypass hose from water bypass pipe
(3) Air hose from intake manifold

SF1QE−01
S01897
S01911Vacuum Throttle Lever
Throttle
Stop
Screw
No Clearance
P00025
VC
VTA
IDL
E2
VC VTA IDL E2
S01899
− SFITHROTTLE BODY
SF−31
1996 RAV4 (RM447U)
INSPECTION
1. CLEAN THROTTLE BODY
(a) Using a soft brush and carburetor cleaner, clean the cast
parts.
(b) Using compressed air, clean all the passages and aper-
tures.
NOTICE:
To prevent deterioration, do not clean the
throttle position sensor.
2. INSPECT THROTTLE VALVE
(a) Apply vacuum to the throttle opener.
(b) Check that there is no clearance between the throttle stop
screw and throttle lever when the throttle valve is fully
closed.
3. INSPECT THROTTLE POSITION SENSOR
(a) Apply vacuum to the throttle opener.
(b) Using an ohmmeter, measure the resistance between
each terminal.
Clearance between
lever and stop screwBetween terminalsResistance
0 mm (0 in.)VTA − E20.2 − 5.7 kΩ
Throttle valve fully
openVTA − E2 2.0 − 10.2 kΩ
−VC − E22.5 − 5.9 kΩ
4. IF NECESSARY, ADJUST THROTTLE POSITION SEN-
SOR
(a) Loosen the 2 set screws of the sensor.

S01910
Ohmmeter
Vacuum IDL
E2
0.60 mm
S01910
Ohmmeter
Vacuum IDL
E20.50 or
0.70 mm SF−32
− SFITHROTTLE BODY
1996 RAV4 (RM447U)
(b) Apply vacuum to the throttle opener.
(c) Insert a 0.60 mm (0.024 in.) thikness gauge between the
throttle stop screw and stop lever.
(d) Connect the test probe of an ohmmeter to the terminals
IDL and E2 of the sensor.
(e) Gradually turn the sensor clockwise untill the ohmmeter
deflects, and secure it with the 2 set screws.
(f) Recheck the continuity between terminals IDL and E2.
Clearance between
lever and stop screwContinuity (IDL − E2)
0.50 mm (0.020 in.)Continuity
0.70 mm (0.028 in.)No continuity

SF0QS−01
− SFITHROTTLE BODY
SF−33
1996 RAV4 (RM447U)
INSTALLATION
Installation is in the reverse order of removal (See page SF−30).

SF0QT−02
S01261
SST DLC1
E1 TE1
S01904
RSC
RSO+B
Ohmmeter
IAC Valve SF−34
− SFIIDLE AIR CONTROL (IAC) VALVE
1996 RAV4 (RM447U)
IDLE AIR CONTROL (IAC) VALVE
ON−VEHICLE INSPECTION
1. INSPECT IAC VALVE OPERATION
(a) Initial conditions:
Engine at normal operating temperature
Idle speed check correctly
Transmission in neutral position
(b) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843−18020
(c) Maintain engine speed in the range between 900 − 1,300
rpm for 5 seconds. Check that it returns to idle speed.
If the engine speed operation is not as specified, check the IAC
valve, wiring and ECM.
(d) Remove the SST.
SST 09843−18020
2. INSPECT IAC VALVE RESISTANCE
NOTICE:
”Cold” and ”Hot” in these sentences express the tempera-
ture of the coils themselves. ”Cold” is from −10°C (14°F) to
50°C (122°F) and ”Hot” is from 50°C (122°F) to 100°C
(212°F).
(a) Disconnect the IAC valve connector.
(b) Using an ohmmeter, measure the resistance between ter-
minal +B and other terminals (RSC, RSO).
Resistance:
Cold: 17.0 − 24.5 Ω
Hot: 21.5 − 28.5 Ω
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.

SF0QU−02
− SFIIDLE AIR CONTROL (IAC) VALVE
SF−35
1996 RAV4 (RM447U)
COMPONENTS

SF0QV−03
S01895
SF−36
− SFIIDLE AIR CONTROL (IAC) VALVE
1996 RAV4 (RM447U)
REMOVAL
1. REMOVE THROTTLE BODY (See page SF−30)
2. REMOVE IAC VALVE
Remove the 4 screws, IAC valve and gasket.
HINT:
At the time of installation, plaese refer to the following items.
Place a new gasket on the throttle body.