2001 TOYOTA PRIUS Service Repair Manual

HT00J±02
D09790
HT±54
± HYBRID TRANSAXLESHIFT LOCK SYSTEM
2001 PRIUS (RM778U)
INSPECTION
1. INSPECT SHIFT POSITION SENSOR
(a) Remove the steering column upper cover and lower cov-
er.
(b) Disconnect the shift position sensor connector.
(c) Check continuity between terminals shown below when
the shift lever is moved to each position
Shift PositionTerminal No. to continuityTerminal No. to continuity
P1 ± 23 ± 8 ± 9
R1 ± 43 ± 8 ± 9
N1 ± 53 ± 8 ± 9
D1 ± 63 ± 8 ± 9
B1 ± 73 ± 8 ± 9
(d) Connect the shift position sensor connector.
(e) Install the steering column upper cover and lower cover.

D09785
SLS+
STPACC IGA
E B
P1
P
P2
SLS±KLS+
D09783
D09784
± HYBRID TRANSAXLESHIFT LOCK SYSTEM
HT±55
2001 PRIUS (RM778U)
2. INSPECT SHIFT LOCK CONTROL ECU
Using a voltmeter, measure the voltage at each terminal.
HINT:
Do not disconnect the ECU connector.
TerminalMeasuring ConditionVoltage (V)
A, 1 ± A, 5 (ACC ± E)Ignition switch ACC10 ± 14
A, 3 ± A, 5 (IG ± E)Ignition switch ON10 ± 14
A, 6 ± A, 5 (STP ± E)Depressing brake pedal10 ± 14
A, 4 ± A, 5 (KLS+ ± E)
5. Ignition switch ACC and P position
6. Ignition switch ACC and except P position
7. Ignition switch ACC and except P position (After approx. 1 second)0
7.5 ± 11
6 ± 9.5
B, 1 ± B, 5 (SLS+ ± SLS±)
1. Ignition switch ON and P position
2. Depress brake pedal
3. Except P position0
8 ± 13.5
0
B, 2 ± B, 4 (P1 ± P)1. Ignition switch ON, P position and depress brake pedal
2. Shift except P position under conditions above0
9 ± 13.5
B, 6 ± B, 4 (P2 ± P)1. Ignition switch ACC, P position
2. Shift except P position under conditions above9 ± 13.5
0
3. INSPECT SHIFT LOCK SOLENOID
(a) Disconnect the solenoid connector.
(b) Using an ohmmeter, measure the resistance between ter-
minals.
Standard resistance: 29 ± 35 W
If the resistance value is not as specified, replace the solenoid.
(c) Apply battery positive voltage between terminals. Check
the operation.
If the solenoid does not operate, replace the solenoid noise can
be heard from the solenoid.

I04108
Q07191
D09785
SLS+
STPACC IGA
E B
P1
P
P2
SLS±KLS+
HT±56
± HYBRID TRANSAXLESHIFT LOCK SYSTEM
2001 PRIUS (RM778U)
4. INSPECT KEY INTERLOCK SOLENOID
(a) Disconnect the solenoid connector.
(b) Using an ohmmeter, measure the resistance between ter-
minals 3 and 4.
Standard resistance: 12.5 ± 16.5 W
If the resistance value is not as specified, replace the solenoid.
(c) Apply battery positive voltage between the terminals 3
and 4. Check that an operation sound can be heard from
the solenoid.
If the solenoid does not operate, replace the solenoid.
5. INSPECT SHIFT LOCK CONTROL SWITCH
Check that there is continuity between terminals.
Shift positionTester connectionStandard
P positionA, 5 ± B, 2 (E ± P1)Continuity
P position
(Pull the shift lever toward
you)A, 5 ± B, 2 (E ± P1)
A, 5 ± B, 6 (E ± P2)Continuity
R, N, D, 2, L positionA, 5 ± B, 6 (E ± P2)Continuity
If continuity is not identified, replace the switch.

HT00R±02
D09770
AT2799
D09771
D09772
A
B HT±64
± HYBRID TRANSAXLEDIFFERENTIAL CASE
2001 PRIUS (RM778U)
REASSEMBLY
1. ASSEMBLE DIFFERENTIAL CASE
(a) Coat the 2 side gear thrust washers and 2 pinion thrust
washers with ATF.
(b) Install the 2 side gears, 2 pinions and 4 thrust washers to
the case.
(c) Check the side gear backlash.
Measure the side gear backlash while pushing one pinion
gear toward the case.
Standard backlash:
0.05 ± 0.20 mm (0.0020 ± 0.0079 in.)
Referring to the table below, select thrust washers
which backlash is surely within the specified range.
Select washers of the same size for both sides.
Thrust washer thickness
ThicknessThickness
0.95 mm (0.0374 in.)1.10 mm (0.0433 in.)
1.00 mm (0.0394 in.)1.15 mm (0.0453 in.)
1.05 mm (0.0414 in.)1.20 mm (0.0472 in.)
If the backlash is not within the specified range, install a thrust
washer of a different thickness.
(d) Using a pin punch and a hammer, install the straight pin.
(e) Stake the differential case.
2. INSTALL 2 TAPERED ROLLER BEARINGS
CAUTION:
A: The one which has bigger rollers
(The number of rollers is 22.)
B: The one which has smaller rollers
(The number of rollers is 24.)

D09773
SST
D09774
SST
± HYBRID TRANSAXLEDIFFERENTIAL CASE
HT±65
2001 PRIUS (RM778U)
(a) Using SST and a press, press in the tapered roller bearing
RH. (Bearing B)
SST 09710±22021 (09710±01031), 09950±70010
(09951±07100)
(b) Using SST and a press, press in the tapered roller bearing
LH. (Bearing A)
SST 09710±22021 (09710±01031), 09950±70010
(09951±07100)