TOYOTA CAMRY 1999 Service Repair Manual

B01277
Move
SF0DN±03
B00525
P
R
E
B01278
Disconnect
Vacuum
B01282
VTA
E2
VCOhmmeter
± SFI (5S±FE)THROTTLE BODY
SF±29
1462 Author: Date:
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
Mark EVacuumVacuum
Mark PNo vacuumVacuum
Mark RNo vacuumNo vacuum
2. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the sensor connector.
(b) Disconnect the vacuum hose from the throttle opener.
(c) Apply vacuum to the throttle opener.
(d) 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 kW
Throttle valve fully
openVTA ± E22.0 ± 10.2 kW
±VC ± E22.5 ± 5.9 kW
(e) Reconnect the vacuum hose to the throttle opener.
(f) Reconnect the sensor connector.
3. INSPECT THROTTLE OPENER
(a) Allow the engine to warm up to normal operating tempera-
ture.

S05331
B01279
Plug
Disconnect
B01280
2.5 mm Hexagon Wrench
SF±30
± SFI (5S±FE)THROTTLE BODY
1463 Author: Date:
(b) Connect a TOYOTA hand±held tester or OBDII scan tool.
(1) Remove the fuse cover on the instrument panel.
(2) Connect a TOYOTA hand±held tester or OBDII
scan tool to the DLC3.
(3) Please refer to the TOYOTA hand±held tester or
OBDII scan tool operator's manual for further de-
tails.
(c) Check the idle speed.
Idle speed: 700 ± 50 rpm
(d) Check and adjust the throttle opener setting speed.
(1) Disconnect the vacuum hose from the throttle open-
er, and plug the hose end.
(2) Maintain the engine speed at 2,500 rpm.
(3) Release the throttle valve.
(4) Check that the throttle opener is set.
Throttle opener setting speed:
1,300 ± 1,500 rpm (w/ Cooling fan OFF)
(5) Using a 2.5 mm hexagon wrench, loosen the lock
nut and adjust the throttle opener setting speed by
turning the throttle opener adjusting screw. Tighten
the lock nut.
(6) Reconnect the vacuum hose to the throttle opener.
(e) Disconnect the TOYOTA hand±held tester or OBDII scan
tool.

SF0DO±03
B00526
Accelerator Cable
Throttle Cable
(A/T)
Throttle Position Sensor
Connector
IAC Valve Connector
Water Bypass Hose
EVAP Hose
IAT Sensor
Connector
VSV Connector
for EVAP Air Cleaner CapPCV Hose Air Cleaner HoseThrottle Body Vacuum Hose

Gasket
EVAP Hose
EVAP Hose Air Hose
(California)
N´m (kgf´cm, ft´lbf): Specified torque

Non±reusable part
19 (195, 14)
± SFI (5S±FE)THROTTLE BODY
SF±31
1464 Author: Date:
COMPONENTS

SF0DP±03
B01283
S05534
Water
Bypass
Hose
Water
Bypass
HoseAir
Hose SF±32
± SFI (5S±FE)THROTTLE BODY
1465 Author: Date:
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE AIR CLEANER CAP (See page EM±69)
3. DISCONNECT ACCELERATOR CABLE FROM
THROTTLE BODY
4. A/T:
DISCONNECT THROTTLE CABLE FROM THROTTLE
BODY
5. REMOVE THROTTLE BODY
(a) Disconnect the throttle position sensor connector.
(b) Disconnect the IAC valve connector.
(c) Disconnect the 2 vacuum hoses from the throttle body.
(d) Remove the 3 bolts.
(e) Disconnect the throttle body from the intake manifold.
(f) Remove the gasket.
(g) Disconnect the air hose for air assist system (California)
and the 2 water bypass hoses from the throttle body, and
remove the throttle body.

SF0DQ±03
B00527
B01284
No
Clearance
Disconnect
VacuumThrottle
LeverStop
Screw
± SFI (5S±FE)THROTTLE BODY
SF±33
1466 Author: Date:
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 and throttle opener.
2. INSPECT THROTTLE BODY
(a) Disconnect the throttle opener vacuum hose from the
throttle body.
(b) Apply vacuum to the throttle opener.
(c) Check that there is no clearance between the throttle stop
screw and throttle lever when the throttle valve is fully
closed.
(d) Reconnect the throttle opener vacuum hose to the throttle
body.
3. INSPECT THROTTLE POSITION SENSOR
(See page SF±29)

SF0DR±03
S05534
(a)
(c)
(b)
B01283
SF±34
± SFI (5S±FE)THROTTLE BODY
1467 Author: Date:
INSTALLATION
1. INSTALL THROTTLE BODY
(a) Connect the water bypass hose (from the water bypass
pipe) to the throttle body.
(b) Connect the water bypass hose (from the water outlet) to
the throttle body.
(c) California:
Connect the air hose (from the intake manifold) for air as-
sist system to the throttle body.
(d) Install a new gasket and the throttle body with the 3 bolts.
Torque: 19 N´m (195 kgf´cm, 14 ft´lbf)
(e) Connect the 2 vacuum hoses to the throttle body.
(f) Connect the throttle position sensor connector.
(g) Connect the IAC valve connector.
2. CONNECT ACCELERATOR CABLE TO THROTTLE
BODY
3. A/T:
CONNECT THROTTLE CABLE TO THROTTLE BODY
4. INSTALL AIR CLEANER CAP (See page EM±75)
5. FILL WITH ENGINE COOLANT

SF0DS±03
A07370
SST
E1
TE1
B01281
Ohmmeter
ISCC+B
ISCO
± SFI (5S±FE)IDLE AIR CONTROL (IAC) VALVE
SF±35
1468 Author: Date:
IDLE AIR CONTROL (IAC) VALVE
ON±VEHICLE INSPECTION
1. INSPECT IAC VALVE OPERATION
(a) Initial conditions:

Engine at normal operating temperature

Idle speed set correctly

Transmission in neutral position
(b) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843±18020
(c) After the engine speed is kept at 900 ± 1,300 rpm for 5 se-
conds, 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 from the DLC1.
SST 09843±18020
2. INSPECT IAC VALVE RESISTANCE
NOTICE:
ºColdº and ºHotº in these sentences express the tempera-
ture of the coils themselves. ºColdº is from ±10°C (14°F) to
50°C (122°F) and ºHotº 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 (ISCC, ISCO).
Resistance:
Cold17.0 ± 24.5 W
Hot21.5 ± 28.5 W
If the resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.

SF0DT±03
B01285
Vacuum Hose

Gasket
Throttle Body
Water Bypass Hose
Air Hose (California)Accelerator Cable
Throttle Cable
(A/T)
Throttle Position Sensor
Connector
IAC Valve Connector
Air Cleaner Cap Air Cleaner Hose
IAC Valve
VSV Connector
for EVAPEVAP Hose
IAT Sensor
Connector PCV HoseEVAP Hose
EVAP Hose
19 (195, 14)

Gasket
Throttle Body
N´m (kgf´cm, ft´lbf): Specified torque

Non±reusable part
SF±36
± SFI (5S±FE)IDLE AIR CONTROL (IAC) VALVE
1469 Author: Date:
COMPONENTS

SF0DU±03
B01276
Except California
± SFI (5S±FE)IDLE AIR CONTROL (IAC) VALVE
SF±37
1470 Author: Date:
REMOVAL
1. REMOVE THROTTLE BODY (See page SF±32)
2. REMOVE IAC VALVE
Remove the 4 screws, IAC valve and gasket.

SF0DV±03
S01477
Battery
ClosedISCC
+B
S01478
Battery
Open
ISCO +B SF±38
± SFI (5S±FE)IDLE AIR CONTROL (IAC) VALVE
1471 Author: Date:
INSPECTION
INSPECT IAC VALVE OPERATION
(a) Connect the positive (+) lead from the battery to terminal
+B and negative (±) lead to terminal ISCC, and check that
the valve is closed.
(b) Connect the positive (+) lead from the battery to terminal
+B and negative (±) lead to terminal ISCO, and check that
the valve is open.
If operation is not as specified, replace the IAC valve.