TOYOTA PRIUS 2001 Service Repair Manual

B11830
± SFIINJECTOR
SF±15
2001 PRIUS (RM778U)
2. CONNECT FUEL TUBE
Connect the fuel tube (fuel tube connector) to the fuel pipe.
CAUTION:
Perform connecting operations of the connector (quick
type) after observing the precautions.
3. INSTALL CYLINDER HEAD COVER
(See page EM±21)

SF1KR±01
B11453
N´m (kgf´cm, ft´lbf)

Non±reusable part: Specified torque
Gasket
Fuel Tank Assembly
Tail Pipe
39 (398, 29)

Gasket
Front Exhaust Pipe
45 (459, 33)
39 (398, 29)
39 (398, 29)
Parking Brake Cable
62 (632, 46)
Vacuum Hose for HCAC Heated Oxygen Sensor
(Bank 1 Sensor 2)
± SFIFUEL TANK AND LINE
SF±17
2001 PRIUS (RM778U)
COMPONENTS

B11454
39.2 (400, 29)39.2 (400, 29)
VSV for Purge Flow
Switching Valve
Vapor Pressure
Sensor
Charcoal
Canister
Fuel Tank
Canister Closed
Valve
Fresh Air ValveTrap Filter
N´m (kgf´cm, ft´lbf) : Specified torque SF±18
± SFIFUEL TANK AND LINE
2001 PRIUS (RM778U)

SF1KS±01
F12396
TOYOTA Hand±Held
Tester
DLC3
B11458
Ohmmeter1 (M±)
2 (M+)
SF±24
± SFITHROTTLE BODY
1238 Author: Date:
2001 PRIUS (RM778U)
THROTTLE BODY
ON±VEHICLE INSPECTION
1. INSPECT SYSTEM OPERATION
(a) Disconnect the throttle control motor connector.
(b) Turn the ignition switch ON.
(c) Inspect the throttle position sensor function.
(1) Connect the TOYOTA hand±held tester to the
DLC3.
(2) When turning the throttle linkage to the full open
position, check that the throttle valve opening per-
centage (THROTTLE POS) of the CURRENT DATA
shows the standard value.
Throttle valve opening percentage: 60 % or more
If operation is not as specified, check that the throttle position
sensor, wiring and ECM.
(d) Connect the throttle control motor connector.
(e) Transit to the inspection mode and start the engine.
(f) Allow the engine to warm up to normal operating tempera-
ture.
(g) To check the charging rate of the HV battery, move the
shift lever to D range and check that the engine stops.
If it does not stop, the charging rate may be low. With the shift
lever in P range, keep running the engine for a while. Then, shift
lever to D range again and check that the engine stops.
(h) Start the engine.
(i) Turn the A/C switch ON and OFF, and check the idle
speed.
Idle speed (Transmission in neutral):
1,000 ± 50 rpm (A/C OFF)
1,200 ± 50 rpm (A/C ON)
NOTICE:
Perform inspection under condition without electrical load.
(j) Stop the engine and disconnect TOYOTA hand±held tes-
ter from the DLC3.
2. INSPECT THROTTLE CONTROL MOTOR
(a) Disconnect the throttle control motor connector.
(b) Using an ohmmeter, measure the resistance between ter-
minal M+ and M±.
Resistance: 0.3 ± 100 W at 20°C (68°F)
If the resistance is not as specified, replace the throttle body.

B11459
OhmmeterE2
VC
± SFITHROTTLE BODY
SF±25
1239 Author: Date:
2001 PRIUS (RM778U)
(c) Reconnect the throttle control motor connector.
3. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the throttle position sensor connector.
(b) Using an ohmmeter, measure the resistance between ter-
minals VC and E2.
Resistance: 1.2 ± 3.2 kW at 20°C (68°F)
If the resistance is not as specified, replace the throttle position
sensor. (See page SF±29)
(c) Reconnect the throttle position sensor connector.
4. INSPECT ACCELERATOR PEDAL POSITION SEN-
SOR (See page SF±59)

SF0NM±09
B11460
Air Cleaner Assembly
PCV Hose
Purge Line Hose
Throttle Body
AssemblyTrottle Control
Motor Connector
Water Bypass Hose Trottle Position
Sensor Connector

Gasket
N´m (kgf´cm, ft´lbf)

Non±reusable part: Specified torque
20 (204, 15)
20 (204, 15)
SF±26
± SFITHROTTLE BODY
2001 PRIUS (RM778U)
COMPONENTS

B11461
Throttle BodyTrottle Position Sensor
N´m (kgf´cm, ft´lbf) : Specified torque
1.7 (17.5, 15 in.´lbf)
± SFITHROTTLE BODY
SF±27
2001 PRIUS (RM778U)

SF1KT±01
B11465
B1146615° (3)
(2)
B11467Turn
± SFITHROTTLE BODY
SF±29
2001 PRIUS (RM778U)
REPLACEMENT
NOTICE:

To prevent deterioration, do not shock the throttle
position sensor.

Mixing of the foreign objects may cause the gear lock-
ing, so thoroughly check that there is no stuck of any
foreign objects and clean up if any.
REPLACE THROTTLE POSITION SENSOR
(a) Remove the 2 set screws and throttle position sensor.
(b) Reinstall the throttle position sensor.
(1) Check that the throttle valve is under the condition
of the opener opening angle (about 3.5°).
(2) Install the sensor to the place where is at 15° ro-
tated to the right from the specified installation posi-
tion.
(3) Gradually turn sensor counterclockwise until it
touches the throttle valve shaft and temporarily
torque the 2 set screws.
(c) Adjust the throttle position sensor.
(1) Connect the throttle position sensor connector.
NOTICE:
At this time, do not connect the throttle control motor con-
nector.
(2) Connect the TOYOTA hand±held tester to the
DLC3.
(3) Turn the ignition switch ON.
NOTICE:
After turning the ignition switch ON, do not depress the ac-
celerator pedal.
(4) While reading the value of the throttle valve opening
percentage (THROTTLE POS) of the CURRENT
DATA, turn the throttle position sensor slowly to left
and set the sensor at the center value of the stan-
dard value, and then torque the screws.
Torque: 1.7 N´m (17.5 kgf´cm, 15 in.´lbf)
Standard throttle valve opening percentage:
14.8 ± 0.8 %

SF±30
± SFITHROTTLE BODY
2001 PRIUS (RM778U)
NOTICE:
At the time of tightening the screw, as the sensor itself
tends to turn causing to slanting, check that it is within the
standard value after having finished the torque.
(5) Fully close the throttle valve with a screwdriver and
check that the value of the throttle valve opening
percentage (THROTTLE POS) of the CURRENT
DATA stays with the standard value.
Standard throttle valve opening percentage:
10 ± 14 %
If the throttle valve opening percentage is not as specified, re-
peat steps (4) through (5).
(6) Paint the sensor set screws.
(7) Turn the ignition switch OFF.
(8) Disconnect the TOYOTA hand±held tester or from
the DLC3.
(9) Disconnect the throttle position sensor connector.

B11807
SF1KX±01
B11808
B11746
Ohmmeter
Continuity
B11747
Ohmmeter
No Continuity
B11748
Air A B
A SF±42
± SFIVSV FOR CANISTER CLOSED VALVE (CCV)
2001 PRIUS (RM778U)
INSPECTION
1. REMOVE FUEL TANK (See page SF±17)
2. REMOVE VSV
(a) Disconnect the air inlet hoses from the VSV for canister
closed valve.
(b) Disconnect the connector from the VSV for canister
closed valve.
(c) Remove the bolt and disconnect the air opening valve
from the VSV for canister closed valve.
(d) Remove the 2 bolts and VSV for canister closed valve
with the trap filter.
(e) Remove the 2 bolts and VSV for canister closed valve
from the trap filter.
3. INSPECT VSV FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between the
terminals.
Resistance: 25 ± 30 W at 20 °C (68 °F)
If there is no continuity, replace the VSV.
4. INSPECT VSV FOR GROUND
Using an ohmmeter, check that there is no continuity between
each terminal and the body.
If there is no continuity, replace the VSV.
5. INSPECT VSV OPERATION
(a) Check that air flows from ports A to B.